Pigging & Pipeline Insights

What type of pig do I need for wax removal?

Thu, 08 Oct 2026 19:10:12 GMT

How to Choose the Right Pipeline Pig for Wax and Paraffin Removal

Wax and paraffin buildup can restrict flow, increase pressure requirements, interfere with inline inspection tools, and make cleaning runs less predictable. Choosing the right pipeline pig depends on more than the amount of buildup. Operators also need to consider pipeline geometry, operating conditions, debris volume, and the purpose of the cleaning program.

What Is the Best Pig for Wax Removal?

Urethane pigs and brush-equipped cleaning pigs are commonly used to remove pipeline wax and paraffin. The correct configuration depends on:

The thickness and consistency of the deposit
Pipeline diameter and internal condition
Bend radius and diameter changes
Flow rate, pressure, and anticipated pig speed
The volume of material that may be removed
Whether the line is being prepared for inline inspection

Foam or urethane pigs can address light or soft deposits. Thick, hardened, or recurring deposits may require brushes, scraper elements, or multiple cleaning runs.

Learn more about paraffin buildup and removal from pipelines .

Why Wax and Paraffin Buildup Matter

Wax does more than reduce the available diameter of a pipeline. As deposits accumulate along the pipe wall, they can:

Restrict flow and increase pressure requirements
Create an inconsistent internal surface
Affect pig sealing and cleaning performance
Interfere with inline inspection sensors
Reduce inspection data quality
Increase the possibility of bypass, stalling, or incomplete cleaning
Require additional cleaning runs and downtime

The goal is not simply to launch a pig. The goal is to select a tool and cleaning sequence that can remove and transport the material without overwhelming the pipeline or the pig.
Too aggressive, and it can bypass, wear out prematurely, or create unnecessary risk.

Comparing Pigs for Wax and Paraffin Removal

Urethane Cleaning Pigs

Urethane pigs provide a combination of sealing, durability, and cleaning performance. They can be manufactured with cups, discs, brushes, scraper elements, or other components selected for the pipeline.

They may be appropriate for:

Moderate or heavy wax buildup
Pipelines requiring consistent sealing
Longer cleaning runs
Applications requiring both cleaning and debris movement
Progressive cleaning programs using multiple pig configurations

The configuration matters. Cup and disc dimensions, material hardness, brush type, bypass, and pipeline geometry can all affect performance.

Learn more about urethane pipeline cleaning pigs .

Brush Cleaning Pigs

Brush-equipped pigs help loosen deposits attached to the pipe wall. Depending on the application, brushes may be used on a steel-body pig, urethane pig, or another customized cleaning tool.

They may be appropriate for:

Thick or hardened deposits
Recurring wax or paraffin accumulation
Pipelines requiring more aggressive wall contact
Preparing a line for follow-up cleaning runs
Removing deposits before an inline inspection

Match brush type and aggressiveness to the pipeline. More aggressive is not automatically better.

Learn more about brush cleaning pigs .

Foam Pigs

Foam pigs are flexible and can negotiate certain bends, restrictions, and changes in internal diameter. Depending on their density and coating, they can be used for light cleaning, drying, product removal, or maintenance runs.

They may be appropriate for:

Light or soft wax buildup
Routine maintenance cleaning
Lines with restrictive geometry
Evaluating pipeline conditions before more aggressive cleaning

Foam pigs may not provide enough cleaning force for thick or hardened deposits. Using a tool that is too light can result in incomplete cleaning and unnecessary repeat runs.

See the differences between foam and urethane cleaning pigs .

Why Progressive Cleaning Is Often the Better Approach

Trying to remove a large volume of wax in one run can increase the possibility of debris accumulation, bypass, inconsistent pig movement, or a stalled pig.

A progressive cleaning program may begin with a less aggressive configuration and increase cleaning action as the condition of the pipeline becomes better understood. A typical program might include:

An initial run to evaluate the amount and type of material being removed
Follow-up runs with brushes, discs, or scraper elements selected for the deposit
Additional runs to transport remaining debris and condition the pipe wall
Verification that the pipeline has reached the required cleanliness level

The exact sequence should be based on the pipeline—not a standard number of runs.

Use Enduro’s Pipeline Cleaning Run Decision Framework to help evaluate whether another cleaning run may be necessary.

Five Common Wax-Removal Mistakes

1. Starting With the Wrong Level of Aggressiveness

A pig that is too light may leave deposits behind. A configuration that is too aggressive may remove more material than the system can safely transport or create unnecessary operational risk.

Select the pig based on the expected deposit, pipeline geometry, operating conditions, and acceptable debris load.

2. Expecting One Pig Run to Solve Everything

One pass rarely resolves significant wax buildup. Effective programs progressively remove material while monitoring pig condition, debris returns, differential pressure, and run performance.

3. Ignoring Flow and Pressure Conditions

Pig performance depends on how the tool interacts with the operating pipeline. Low velocity, inconsistent flow, pressure fluctuations, and excessive bypass can all affect cleaning and debris transport.

4. Failing to Prepare Properly for ILI

Residual wax can interfere with sensors, affect tool movement, and reduce inspection data quality. Cleaning requirements should be based on the inspection tool's needs and the pipeline's condition.

Learn more about preparing a pipeline for inline inspection .

5. Treating Every Pipeline as a Standard Application

Diameter changes, bend radius, wall condition, previous cleaning results, deposit characteristics, and operational limitations can all require a different pig design.

When a standard configuration will not provide the required contact, sealing, or flexibility, a custom pipeline cleaning pig may be the better solution.

Build the Cleaning Program Around the Pipeline

Successful wax and paraffin removal requires the right pig, sequence, and operating conditions. Before selecting a tool, consider:

What material is present?
How severe is the buildup?
How much debris could one run generate?
Can the pipeline transport that material?
Are there diameter changes, restrictions, or tight bends?
Is the pipeline being prepared for an inline inspection?
What did previous cleaning runs reveal?

Enduro’s team can review your pipeline conditions and help develop a cleaning pig configuration and run strategy for the application.

Call 800-752-1628 or request a quick quote .

Pipeline Pig Tracking: What I’ve Learned About Knowing Where the Pig Is

Thu, 17 Sep 2026 21:02:21 GMT

Don’t Lose the Pig: What I’ve Learned About Pipeline Pig Tracking

During my first year in pipeline pigging sales, I learned that “How do you track a pig?” is one of those questions that sounds simple—until you start talking about what the crew actually needs to know.

At first, I thought pig tracking simply meant knowing where the pig was.

The more I’ve learned from our field experts and customers, the clearer the answer has become: tracking isn’t just about locating a pig. It’s about having the information you need throughout the run—and making sure you don’t lose it.

One interesting part of my experience is that I built some of the equipment before I understood the field application behind it. Before moving into sales, I built wired geophones, wireless geophones, and transmitters.

I knew how to build the equipment. I didn’t fully understand why a pipeline crew needed it.

Talking with experts and customers helped connect those two things for me.

Why Do Pipeline Crews Need to Track a Pig?

A pig is traveling through a pipeline that you can’t simply look inside. That makes knowing where the pig is an important part of the run.

Tracking can help a crew determine whether a pig has reached a particular location, confirm that it has passed a tracking point, or help locate it if it doesn’t arrive when expected.

That last part is especially important.

If a pig doesn’t arrive where it should, the questions change quickly:

Where was the pig last detected?
Did it pass another tracking point?
How long has it been traveling?
Could it be stuck?
Where should the crew begin looking?

Without tracking information, there's much more uncertainty about what happened. A lost or stuck pig can become an expensive problem. Finding and recovering it may require additional labor, equipment, troubleshooting, excavation, or downtime, depending on the situation.

That’s why I no longer think of tracking as something you only need when something goes wrong.

Tracking gives the crew information that helps them understand what’s happening before a problem gets much bigger.

What’s the Difference Between Locating a Pig and Confirming Passage?

One of the first things I had to learn was that locating a pig and confirming that it passed a certain point aren’t necessarily the same thing.

When you’re locating a pig, you’re trying to determine where it is along the pipeline.

When you’re confirming passage, you’re asking a more specific question: Did the pig make it past this location?

Those two objectives can require different tracking methods.

For example, a transmitter installed in the pig can send a signal that a compatible receiver above ground detects. This can help an operator locate the pig along the pipeline.

Other detection equipment can indicate when a pig passes a particular location. The important thing for me was learning to start with the objective rather than the equipment.

Before asking, “Which tracking device do I need?” it makes more sense to ask: “What do I need to know during this pig run?”

What Is a Transmitter?

In the simplest terms, a transmitter sends out a signal. A transmitter can be installed in a pig so that a compatible receiver above ground can detect the signal. There are different types of transmitters and different specifications depending on the application, but the basic concept is pretty simple:

The transmitter sends. The receiver listens. The transmitter gives the crew a way to detect the pig without seeing inside the pipeline.

That concept became much easier for me once I understood the field application. Instead of thinking about the transmitter as just another piece of equipment, I started thinking about it as a way for the crew to get information about the pig’s location.

What Is the Receiver Actually Doing?

If the transmitter sends the signal, the receiver detects it. The receiver isn’t seeing through the pipeline or providing a GPS location. It detects the signal from the transmitter and gives the operator information that can be used to help locate the pig.

The operator can use the receiver along the pipeline route to determine where the signal is strongest and narrow down the pig’s location.

That may sound simple, but it is an important part of understanding how transmitter-based pig tracking works.

What Is a Geophone?

This is where my own experience with the equipment comes in. Before I was in sales, I built both wired and wireless geophones.

The funny thing is, I built them before I really understood why.

A geophone detects ground vibrations. In pipeline pigging, that lets a crew detect sounds and vibrations associated with a pig traveling through the pipeline. Instead of detecting a signal from a transmitter, you’re listening for what is happening around the pipeline.

Once I understood the field application, the equipment made a lot more sense to me. I wasn’t just building a geophone.

I was building a tool that could help a crew determine whether a pig was moving through the pipeline or had reached a particular location.

Why Use More Than One Tracking Method?

When you’re new to the industry, it is easy to wonder why a crew would need multiple ways to track a pig.

If one method works, why not just use it? Different tracking methods can provide different types of information.

A transmitter and receiver can help locate a pig.

A geophone can detect sounds and vibrations associated with a pig moving through the pipeline.

Other detection equipment can help confirm that a pig has passed a specific location.

Depending on the pipeline and the objectives of the run, a crew may use more than one method to add information or verify what is happening. This is another area where talking with field experts helped change my perspective. The goal isn’t to use as much equipment as possible. The goal is to use the right information to make good decisions during the run.

What Is the Difference Between a Pig Popper and a Non-Intrusive Sensor?

When I first started learning the terminology, equipment names like these were another area where I had a lot to learn.

A Pig Popper is used to indicate pig passage. A non-intrusive sensor detects a pig from outside the pipeline without modifying the line.

Both can provide information about pig movement, but they do it differently and can be useful in different applications.

For someone new to tracking, the important thing isn’t necessarily memorizing every product or piece of equipment.

It’s understanding what question you’re trying to answer.

Do you need to locate the pig?
Do you need to confirm that it passed a specific point?
Do you need both?

Those questions help determine which tracking approach makes sense.

What Happens If the Pig Doesn’t Arrive?

This is where I think the importance of tracking becomes easiest to understand. Let’s say a crew expects a pig to arrive at a certain location, but it doesn’t. Now they need to determine what happened.

The more information they have about the pig’s last known location and movement, the better they can narrow down where to look and what may have happened. A pig can become stuck for a variety of reasons, and the appropriate response depends on the pipeline, pig, operating conditions, and circumstances of the run.

But one thing is true regardless of the specific situation: You don’t want to lose track of the pig.

A stuck or lost pig can cost a lot of money. The longer it takes to locate the pig, determine what happened, and recover it, the more complicated the situation can become.

Tracking can’t prevent every pig from getting stuck.

What it can do is give the crew information that may help them locate the pig and respond more effectively when something doesn’t go according to plan.

What Should You Consider When Choosing Tracking Equipment?

One of the biggest things I’ve learned since moving into sales is that no single tracking setup works for every pipeline.

The right equipment depends on the application.

Some of the questions we may consider when talking with a customer include:

What type of pig are you running?
What size is the pipeline?
Is the pipeline buried or above ground?
How deep is the pipeline?
Where do you need to track the pig?
Are you trying to locate the pig, confirm passage, or both?
Will the pig hold a transmitter?
What access does the crew have to the pipeline?

The answers to those questions can point toward one tracking method or a combination of methods.

That’s why I think choosing tracking equipment should start with the application, not a specific product.

The right tracking equipment is the equipment that gives the crew the information they need.

What Have I Learned About Pig Tracking?

Looking back at the equipment I built before moving into sales, I understand it differently now.

I knew how to build wired and wireless geophones.

I knew how to build some transmitters.

What I didn’t understand yet was what those pieces of equipment meant to the person standing beside a pipeline waiting for a pig.

Talking with field experts and customers helped me make that connection.

I started to understand that the equipment isn’t really the most important part.

The information is.

Knowing where the pig is.

Knowing whether it passed.

Knowing where it was last detected.

Knowing where to start looking if it doesn’t arrive.

That’s what tracking provides.

Don’t Lose the Pig

For me, this has been one of the biggest takeaways from learning about pipeline tracking. I started out thinking tracking simply meant knowing where the pig was. Now I understand that it’s about much more than that.

It’s about knowing what is happening during the run and having the information you need if something doesn’t go according to plan.

Because at the end of the day, there is one thing you really don’t want to happen:

Losing the pig.

A stuck or lost pig can become a very expensive problem. Finding it can take time, labor, specialized equipment, and troubleshooting. The sooner a crew can determine where the pig is and what happened, the better positioned they are to respond.

That’s why tracking should be considered before the pig goes into the pipeline—not after there’s a problem.

Every pipeline is different, and the right tracking approach depends on the pig, the pipeline, the tracking locations, and what the crew needs to know.

If you’re planning a pig run and aren’t sure how you should track it, talk with the Enduro team before the run begins. We can help you evaluate the application and determine what tracking equipment makes sense for your specific needs.

We also make it easy to purchase pipeline tracking equipment online. Visit shopenduro.com to shop available receivers, transmitters, geophones, pig passage indicators, and other tracking equipment. Need help selecting the right equipment or placing a bulk order? Call Enduro at 800-752-1628 .

Because when it comes to pipeline pigging, knowing where the pig is isn’t just useful information.

Don’t lose the pig.

What Causes MFL Data Loss During Pipeline Inspection?

Fri, 21 Aug 2026 18:43:45 GMT

What Causes MFL Data Loss During Pipeline Inspection?

How debris, sensor lift-off and excessive tool speed can compromise magnetic flux leakage inspection results

PIPELINE INSPECTION EXPLAINED

A magnetic flux leakage inspection may identify metal loss, but the quality of the final data depends heavily on what happens inside the pipeline during the run. Debris can interfere with the sensors, while excessive tool speed can weaken the magnetic response. Understanding these risks before an inline inspection can reduce data loss, uncertainty and the possibility of an unsuccessful survey.

What Is MFL—and Why Does Data Quality Matter?

Magnetic flux leakage (MFL) is a nondestructive testing (NDT) method used during pipeline inline inspection (ILI) to detect and characterize metal-loss features such as corrosion and pitting. The inspection tool records magnetic responses as it travels through the pipeline, and analysts use those signals to identify and estimate metal-loss features.

When debris prevents consistent sensor contact or the tool travels outside its intended speed range, the recorded response may be incomplete or distorted. The feature may still be visible, but analysts may not have enough reliable information to characterize it accurately. That is why pipeline preparation and speed management are data-quality issues—not merely operational details.

How Does MFL Inspection Work?

The pipe wall is magnetized. Powerful magnets on the inspection tool magnetize the pipeline steel.
Magnetic flux travels through the steel. Under normal conditions, the magnetic flux remains largely within the pipe wall.
Metal loss disturbs the field. Where corrosion or another feature has removed steel, part of the magnetic flux leaks from the pipe wall.
Sensors record the leakage field. Sensors on the tool detect and record the magnetic response.
Analysts interpret the signal. Analysts analyze the recorded data to locate the feature and estimate its characteristics.

Important: MFL does not directly measure corrosion depth. It measures a magnetic response. Analysts use that response—together with feature geometry, tool response, pipe properties, calibration and other factors—to estimate total metal loss.

What Causes MFL Data Loss?

In Enduro's field experience, the two most common causes of unsuccessful or compromised MFL surveys are debris and excessive tool speed. Both can reduce confidence in the recorded data and may prevent analysts from accurately characterizing metal-loss features.

1. Debris Can Mask MFL Signals or Lift Sensors

Debris can interfere with sensor contact or mask the magnetic response from a metal-loss feature. Two contaminants are especially important during MFL preparation: paraffin and ferrous debris.

Paraffin: Paraffin can occur at any clock position inside the pipeline. It may lift the sensors away from the pipe wall and prevent consistent contact.
Ferrous debris: Fine powder or sand-like magnetic particles can settle into metal-loss features and mask the signal. Because the particles are magnetic, the tool may detect a metal-loss signature without being able to estimate its depth accurately. Ferrous debris is commonly concentrated near the bottom of the pipe, often between the 4 o'clock and 8 o'clock positions.

A well-planned pipeline cleaning program can help reduce these risks. Cleaning decisions should be based on returned debris, pig condition, the cleaning objective and evidence that conditions are improving—not simply on completing a predetermined number of runs.

For a practical framework operators can use to evaluate successive cleaning runs, download Enduro’s Pipeline Cleaning Run Decision Framework .

How Can Operators Reduce the Risk of MFL Data Loss?

Before an MFL inspection, Enduro’s Sales and Operations teams can help evaluate line conditions, identify potential data-quality risks, and review available mitigation strategies. Key preparation areas include:

A cleaning program matched to the contaminants and inspection objective
Review of debris returned during successive cleaning runs
A plan for maintaining tool speed within the specified operating range
Tool configuration and speed-control options suited to the application
Clear communication among the operator, cleaning team, and inspection provider

Proper preparation cannot eliminate every inspection risk, but thoughtful cleaning, speed management, and tool configuration can substantially improve the probability of collecting a complete, high-quality MFL data set.

Planning an MFL Inspection?

Enduro provides MFL inspection tools and services, pre-ILI cleaning support and application-specific speed-control solutions. Before your next run, our team can help review pipeline conditions, potential debris risks, anticipated operating speeds, and available preparation options that may support a more successful inspection.

2. Excessive Tool Speed Can Weaken the MFL Response

As an MFL tool moves through the pipeline, its magnets must saturate the pipe wall. When the tool travels too quickly, the magnetic system has less time to establish the required field. Lower magnetic saturation can weaken the recorded signal and reduce the detail available to characterize metal loss.

Think of a car crossing a pothole. At 5 mph, the driver can feel the pothole’s width and depth. At 25 mph, the driver still knows the pothole is there but receives far less detail about its actual size. MFL inspection is similar: as speed increases, the tool may record the presence of a feature without collecting the same level of information needed to characterize it accurately.

Maintaining a consistent speed within the inspection tool's operating parameters is essential. When pipeline flow cannot be reduced enough to maintain an acceptable inspection speed, options may include Enduro's DSC 2.0 speed-control tool —available in sizes from 16 to 42 inches—or application-specific tool modifications. The appropriate approach depends on the pipeline and i nspection conditions.

How GIS Is Changing the Way Operators Use ILI Data

Tue, 04 Aug 2026 19:39:33 GMT

Vicky Hodson
Geospatial Development & Partnerships Specialist

For decades, the typical inline inspection (ILI) process remained largely unchanged: run the tool, analyze the data, and deliver the results—often in the form of a spreadsheet.

The operator was then responsible for coordinating those results with previous inspection reports, alignment sheets, repair records, static maps, and other asset information. Integrity engineers had to bring these separate sources together to build the complete story of a pipeline segment: where it has been, what condition it is in today, and what challenges may lie ahead.

That process is changing—and GIS is helping change it quickly.

From Static Reports to Living Data

ILI deliverables have evolved considerably over the years.

During the 1980s and 1990s, analysts used magnifying glasses to examine paper logs. Inspection results were compiled into binders and shipped to the operator as hard-copy reports.

The early 2000s introduced digital signals and electronic reporting. Instead of receiving binders of paper, operators could receive inspection results in an Excel spreadsheet delivered directly to their inbox. This made the data easier to store, search, and share, but it remained largely static and contained limited spatial context.

During the 2010s, inertial measurement units, or IMUs, became increasingly common on ILI tools. This introduced the ability to associate XYZ positioning with the pipeline and individual anomalies. At the same time, more operators began developing GIS environments and manually loading ILI spreadsheets into their systems.

For the first time, integrity teams could more easily view inspection results alongside the pipeline and other relevant assets.

Adding spatial information marked a major advance in how integrity engineers evaluate ILI data. Instead of relying entirely on rows and columns, they could begin seeing where anomalies were located and how those locations related to the surrounding pipeline environment.

ILI Data Should Not Be Evaluated in Isolation

ILI results rarely tell the complete story on their own.

Integrity decisions require an understanding of what is happening around each anomaly. A nearby road crossing, geohazard, previous repair, high consequence area, or other pipeline feature may affect how an inspection result is evaluated and prioritized.

When ILI data and GIS information remain separated, engineers must cross-reference spreadsheets, alignment sheets, maps, and historical records to assemble that context. This can be time-consuming, and the process may need to be repeated each time new inspection data is received.

Bringing ILI results into a GIS environment allows the inspection data and surrounding asset information to be viewed together. Instead of rebuilding the story across separate files, integrity teams can see more of that story in one place—and potentially as soon as the final ILI report is delivered.

The Multi-Vendor Data Problem

Data fragmentation is one of the most persistent challenges pipeline operators face.

ILI results collected over many years and across multiple vendors rarely tell the story in exactly the same way. Reports may use different formats, field names, naming conventions, data structures, and levels of spatial precision.

Each report may be useful on its own. However, combining the reports into one reliable view of the pipeline’s condition over time can become a separate project from the integrity work itself.

This is one reason the industry is moving toward more standardized and structured data models. A common schema does more than make a single report easier to interpret. It helps operators compare inspection results across different years, inspection technologies, and vendors without rebuilding the data structure from the beginning each time.

ILI vendors face the other side of this same problem. Every operator may maintain a different GIS structure and have different delivery requirements.

An ILI vendor serving multiple operators can quickly find itself supporting nearly as many delivery formats as it has clients.

More consistent data structures can make information easier to deliver, integrate, compare, and use—regardless of where or when the inspection was completed.

Why This Is a GIS Conversation, Not Just a Data Conversation

At first glance, this may seem like primarily a data management issue. In practice, the shift is also visual and spatial.

Integrity engineers and analysts can make faster, better-informed decisions when they can see the complete context surrounding an inspection result. An interactive, queryable GIS map allows users to evaluate ILI anomalies alongside repairs, crossings, HCAs, geohazards, and other relevant pipeline information.

This does not mean spreadsheets are no longer valuable. It means integrity teams no longer have to rely on spreadsheets alone.

Instead of repeatedly cross-referencing separate files and documents, users can interact with the information spatially, query specific features, apply filters, and better understand how different pieces of pipeline data relate to one another.

What This Means for Integrity Teams

Bringing ILI results into a GIS environment can reduce the time spent locating, formatting, and cross-referencing information stored across separate systems.

Integrity teams can evaluate anomalies alongside nearby pipeline features without manually rebuilding the context for each inspection. The information may also be easier to communicate to other departments and decision-makers who do not work directly from detailed ILI spreadsheets every day.

The result is not simply a different way to display ILI data. It is a more efficient way to review inspection results, communicate findings, and support integrity decisions.

Preparing Pipeline Data for What Comes Next

Structured, consistent, and spatially enabled data also creates opportunities for more advanced analysis.

When relevant pipeline information is organized and accessible in one environment, operators are better positioned to explore tools such as artificial intelligence, risk modeling, corrosion growth analysis, and other predictive techniques.

However, these tools depend on the quality and consistency of the information they receive. AI is only as useful as the data behind it. Establishing clear data structures and improving the way information is integrated are important early steps toward developing more advanced integrity models in the future.

Where Enduro Fits

Enduro has listened to operators and experienced these challenges alongside them. We have built our GIS services to support the industry’s shift toward more structured, spatially enabled ILI data.

Every Enduro ILI report now includes a live, Esri-native Hosted Feature Layer alongside the standard inspection reporting. We are not replacing the tried-and-true spreadsheets operators are accustomed to receiving. We are providing an additional way to move that information directly into the GIS environment where integrity teams are already working.

For clients using a PODS data model, inspection data can also be delivered as a PODS-compatible geodatabase, with custom schema mapping available when needed.

The goal is not to add another deliverable to the pile. It is to make the story contained within the inspection data usable from the moment it arrives—visual, structured, and ready to sit alongside the other information the operator already tracks.

That means integrity teams can spend less time rebuilding the story and more time using it.

Want to see how ILI results can be delivered directly into your GIS environment? Contact Enduro’s GIS team to view an example Hosted Feature Layer and discuss the delivery options available for your next ILI project.

How GIS Is Changing the Way Operators Use ILI Data

Vicky Hodson
Geospatial Development & Partnerships Specialist

Vicky is the vision behind the GIS tools and spatial products that turn inline inspection data into clear, actionable deliverables for pipeline operators. She previously served as ILI Data Analyst Manager and holds a Level 3 MFL Analysis certification — giving her a strong technical foundation in pipeline integrity assessment that now shapes her approach to geospatial product development.

800-752-1628

vickyl@enduropls.com

How Many Cleaning Pig Runs Does a Pipeline Need?

Fri, 17 Jul 2026 19:51:31 GMT

How Many Cleaning Pig Runs Does a Pipeline Need?

During my first year in pipeline pigging sales, I’ve learned that “How many cleaning pig runs will it take?” is one of the most common—and most difficult—questions to answer.

At first, I expected there to be a typical number of runs that applied to most pipelines. The more I’ve learned from our cleaning specialists and customers, the clearer the answer has become: it depends on what the pipeline tells you after each run.

There is no single number that works for every pipeline. Some pipelines may be ready after only a few cleaning runs. Others may require a progressive cleaning program using several pig configurations to gradually remove years of accumulated debris.

Why Isn’t There a Standard Number of Runs?

The number of cleaning pig runs needed depends on several factors, including:

The condition and operating history of the pipeline
The product being transported
The type and volume of debris present
How frequently the pipeline has been cleaned
The pipeline’s diameter, length, bends, and other features
The results recovered after each cleaning run
Whether the objective is routine maintenance or preparation for inline inspection

A pipeline cleaned regularly may require fewer runs than one not cleaned in several years. Pipelines containing heavy paraffin, black powder, mill scale, rust, sand, construction debris, or other contaminants may require a more involved approach.

The cleaning objective also matters. A routine maintenance program may have a different stopping point than a pre-ILI cleaning program , where debris could affect the movement of an inline inspection tool or the quality of the inspection data.

What Does “Clean Enough” Mean?

One of the most important things I have learned is that “clean” can be subjective. Not every operator, technician, or service provider uses the same standard when deciding whether a pipeline is clean enough.

Some operators may stop once the amount of recovered debris has significantly decreased. Others may continue cleaning until returns are minimal or until they meet a specific operational objective.

When an inline inspection is planned, the cleanliness requirements are often higher. The goal is to reduce debris that could interfere with the inspection tool, restrict its movement, affect sensor contact, or reduce confidence in the collected data.

The right stopping point should be based on the cleaning objective and the results of the individual pipeline—not simply a predetermined number of runs.

What Happens During a Progressive Cleaning Program?

A progressive cleaning program usually begins with a less aggressive pig and gradually introduces more aggressive cleaning components when needed. This helps operators manage debris loads and avoid removing more material than the pipeline’s receiving facilities can safely handle at one time.

The exact sequence will vary, but a cleaning program may include the following stages.

1. Initial Cleaning Run

The first run provides an important starting point. It removes loose debris and helps the operator better understand what is inside the pipeline.

The amount and type of material recovered can inform planning for the next run. Operators may examine whether the debris contains paraffin, black powder, rust, mill scale, liquids, sand, construction material, or other contaminants.

2. More Aggressive Cleaning

If heavier deposits remain, the next pig may include more aggressive cleaning components. Depending on the application, these could include cups, discs, brushes, scraper components, blades, or other specialized features.

Some deposits cannot—or should not—be removed in one pass. Multiple runs may be needed to gradually loosen and remove stubborn buildup while allowing the operator to monitor the volume of material being recovered.

3. Brush or Magnetic Cleaning

Brush-equipped pigs can help remove remaining material from the internal pipe wall. Magnetic cleaning pigs may also be used when ferrous debris is present.

Rare-earth magnets can collect materials such as black powder, mill scale, rust flakes, welding debris, and loose steel particles. However, magnets will not collect non-ferrous materials such as paraffin, wax, sand, or liquids. Those contaminants require other cleaning components or methods.

4. Additional Verification Runs

Once debris returns begin to decrease, operators may perform additional cleaning or verification runs. Operators use each run's results to decide whether the pipeline has met the cleaning objective or whether another pig configuration is needed.

When preparing for inline inspection, a gauge pig may also be used to identify restrictions, dents, or reductions in internal clearance before launching the inspection tool. A successful gauge run does not replace cleaning, but it can help confirm pipeline readiness.

5. Inline Inspection

Once the pipeline is properly cleaned and prepared, you can run an inline inspection tool with greater confidence.

A well-prepared pipeline helps reduce the risk of debris interfering with tool movement or sensor performance. It can also support more reliable inspection results and provide a clearer picture of pipeline condition.

This sequence is only an example. Not every pipeline will need every stage, and the order or pig configuration may change depending on the application.

What Should Be Evaluated After Each Run?

Instead of focusing only on the total number of runs, operators should evaluate what happened during each pass. That may include reviewing:

The type and amount of debris recovered
Whether debris returns are increasing or decreasing
The condition of the cleaning pig after retrieval
Wear or damage to cups, discs, brushes, or other components
Differential pressure and run behavior
The pipeline’s operating conditions
The capacity of the receiver and debris-handling equipment
Whether the cleaning objective has been achieved

This information helps determine whether the next run should use the same pig, a more aggressive configuration, a different cleaning component, or no additional run at all.

Let the Pipeline Determine the Number of Runs

For me, this has been one of the biggest takeaways from learning about pipeline cleaning. I started out looking for a simple number, but successful cleaning is not about completing a predetermined number of runs or checking a box.

It is about understanding the pipeline, evaluating results after each run, and adjusting the program based on what you recover.

How do you know whether to run the same cleaning pig again or change the configuration? The previous run should help guide that decision. Debris volume and type, the condition of the returned pig, and whether debris is declining between runs can all provide useful information about cleaning progress.

The cleaning objective matters, too. A pipeline being prepared for inline inspection may require a different level of cleanliness than one undergoing routine maintenance. Also consider pig speed, bypass, operating conditions, and receiver capacity before deciding whether to repeat a run or change the pig configuration.

Sometimes the right decision is to run the same pig again. In other situations, the results may indicate that it is appropriate to increase or decrease the aggressiveness of the cleaning configuration. The goal is not simply to make each run more aggressive—it is to use what the pipeline is telling you to determine the appropriate next step.

Every pipeline is different. That is why experience, careful monitoring, and good judgment matter when developing an effective pipeline cleaning program .

Download the Technical Decision Framework

Need a deeper technical resource than this article?

Download Determining the Appropriate Number of Pipeline Cleaning Runs: A Decision Framework for Routine Maintenance and Inline Inspection Readiness for a more comprehensive discussion of:

Progressive cleaning programs
Defining "clean enough"
Cleaning pig speed and bypass considerations
Stage-gate decision making
Post-run evaluation criteria
ILI readiness
Program documentation and governance

⬇ Download the Technical Decision Framework

McKenzee O'Neal

Inside Sales

mckenzeeo@enduropls.com

800-752-1628

Should You Rebuild or Replace Your Pipeline Pig?

Fri, 26 Jun 2026 14:43:02 GMT

Learn how rebuild kits can extend the life of your cleaning pigs, reduce costs, and keep your pigging program running efficiently.

When I started in pipeline sales, I assumed most customers simply bought new pipeline pigs when the old ones wore out.

After all, we sell a lot of pigs. That part made sense.

What I didn't realize was just how valuable rebuild kits are—and how often rebuilding is actually the smarter choice.

As someone who's still relatively new to the industry compared to many of the experts I work with every day, I've learned that maintaining a successful pigging program isn't just about buying the right pig. It's about protecting that investment and knowing when rebuilding makes more sense than replacement.

Pipeline Pigs Are Built to Work Hard

Pipeline cleaning pigs operate in some of the toughest environments imaginable. Every run exposes them to abrasive debris like mill scale, sand, paraffin, black powder, and other contaminants while enduring changing pressures, temperatures, and miles of mechanical wear inside the pipeline.

Over time, wear components such as cups, discs, and brushes naturally begin to wear down. Even if the pig body itself remains in excellent condition, worn components can reduce sealing efficiency and cleaning performance.

That's where rebuild kits come in.

Replacing only the worn components can restore your pig's performance, extend its service life, and often cost significantly less than purchasing a completely new tool.

What Does a Pipeline Pig Rebuild Kit Include?

While every pig is different, rebuild kits commonly include replacement wear components such as:

Cups
Discs
Brushes
Fasteners
Other wear items specific to the pig design

Replacing these components restores sealing performance, improves cleaning efficiency, and helps maximize the return on your original investment.

When Should You Rebuild a Pipeline Pig?

One of the biggest lessons I've learned is that the answer isn't always "buy new."

Rebuilding often makes sense when:

The pig body is still structurally sound.
Only wear components need to be replaced.
You want to reduce costs without sacrificing performance.
You need to return the tool to service quickly.
Replacement components are readily available.

When Is Replacement the Better Option?

Sometimes replacing the entire pig is the better decision.

Replacement may be recommended when:

The pig body has sustained significant damage.
The application or pipeline conditions have changed.
The pig has reached the end of its service life.
A different pig design would provide better cleaning performance.

The key is working with a company that evaluates your tool honestly and recommends what's best for your operation—not simply what's easiest to sell.

One Size Doesn't Fit Every Pipeline

Another thing I didn't fully appreciate when I started is just how customized pigging solutions can be.

At Enduro, we don't just supply standard cleaning pigs. We design, manufacture, rebuild, and customize pigs to match each customer's specific pipeline conditions and operational goals.

Need a custom configuration? We can do that.

Need a rebuild for a pig built by another manufacturer? We can often help with that too.

Because we keep many standard pigs, rebuild kits, and replacement components in stock, customers don't always have to wait weeks to get back up and running.

Built Right Here in Tulsa

One thing I'm especially proud of is seeing where everything comes together.

Every pig and rebuild kit is designed, manufactured, assembled, and shipped from our facility in Tulsa, Oklahoma.

Watching our team work has given me a whole new appreciation for the experience, craftsmanship, and attention to detail that goes into every product we build.

It's not outsourced.

It's built by people who understand pipeline maintenance and take pride in helping customers keep their operations running.

Come See How It's Done

One of my favorite things we've started offering is the opportunity for customers to visit our facility.

Whether you're new to pigging or have decades of experience, we offer facility tours, technical workshops, and Pigging 101 classes where you can see firsthand how our products are designed, manufactured, rebuilt, tested, and shipped.

It's an opportunity to ask questions, learn more about pipeline maintenance, and meet the experts who build the tools you're relying on in the field.

I think seeing the process in person gives customers a different level of confidence—not only in the products, but in the people behind them.

Get More From Your Pipeline Pig Investment

With proper maintenance and timely rebuilds, many pipeline pigs can continue delivering reliable performance for years.

That means:

Lower operating costs
Less downtime
Longer tool life
Better cleaning performance
Greater return on your investment

As someone who's still learning from the experts around me every day, this has been one of the most valuable lessons I've picked up—and one I think every pipeline operator should know.

Not sure whether your pipeline pig should be rebuilt or replaced?

Our technical specialists can evaluate your existing tool and recommend the most cost-effective solution. Whether it's an Enduro pig or one built by another manufacturer, we'll help you determine the best path forward.

Call 800-752-1628 , request a quote online, or schedule a tour of our Tulsa facility to see how Enduro builds and rebuilds pipeline pigs that keep operators moving.

Studded Cleaning Pig Cups: When More Aggressive Cleaning Is Needed

Tue, 23 Jun 2026 14:48:41 GMT

Understanding When Studded Cleaning Pig Cups May Improve Pipeline Cleaning Performance

Pipeline cleaning requirements vary significantly from one system to another. While standard urethane cleaning pig cups perform exceptionally well in many applications, some pipelines contain deposits and debris that require a more aggressive cleaning approach.One solution frequently used in these situations is a studded cleaning pig cup.

What Are Studded Cleaning Pig Cups?

Studded cleaning pig cups are urethane cups manufactured with metal studs embedded directly into the cup surface. As the cleaning pig travels through the pipeline, these studs provide additional scraping action that can help remove deposits that standard urethane cups may not fully dislodge.

The studs work in conjunction with the sealing and wiping action of the urethane cup, creating a more aggressive cleaning profile while still maintaining the flexibility required to navigate bends, restrictions, and pipeline variations.

Why Are Metal Studs Added to Cleaning Pig Cups?

The primary purpose of adding studs is to increase the cleaning effectiveness of the pig when operators are dealing with difficult deposits or contamination.

Potential benefits may include:

Improved debris removal
Enhanced paraffin and wax cleaning
Better mill scale removal
Increased scraping effectiveness
Improved preparation for inline inspection
More aggressive cleaning between standard pigging runs

Studded cups are often selected when cleaning goals extend beyond simple liquid displacement or routine maintenance pigging.

Common Applications for Studded Cleaning Pig Cups

Studded cleaning pig cups are commonly considered when operators encounter:

Heavy Wax or Paraffin Deposits

Paraffin buildup can reduce flow efficiency and interfere with inspection activities. The additional scraping action provided by studs may help break up and remove stubborn deposits.

Mill Scale Removal

New construction pipelines and recently modified systems may contain mill scale and manufacturing debris. Studded cups can help increase cleaning aggressiveness during commissioning or pre-inspection cleaning programs.

Pipeline Preparation for Inline Inspection

One of the most important steps before an inline inspection run is ensuring the pipeline is sufficiently clean.

Debris remaining in the pipeline can:

Obstruct sensor contact
Reduce data quality
Increase tool wear
Create unnecessary inspection challenges

Studded cups are often incorporated into cleaning programs designed to improve inspection readiness.

Difficult Cleaning Conditions

Some pipelines experience operating conditions that create recurring deposits or contamination. In these situations, operators may choose studded cups as part of a multi-pass cleaning strategy.

Are Studded Cups Right for Every Pipeline?

No.

While studded cups can provide additional cleaning capability, they are not appropriate for every application.

Factors that should be evaluated include:

Pipeline condition
Internal coating considerations
Deposit type
Cleaning objectives
Product being transported
Inline inspection requirements
Existing pigging program

Selecting an overly aggressive pig can create unnecessary wear or operational concerns, while selecting a pig that is too conservative may not achieve the desired cleaning results.

This is why many operators work with experienced pigging specialists to determine the appropriate pig configuration for their specific pipeline conditions.

Studded Cups vs Standard Urethane Cups

Feature

Standard Cups

Studded Cups

Heavy Wax Removal

Mill Scale Removal

Aggressive Scraping

Component Wear

Limited

YES

Limited

YES

Pre-ILI Cleaning

Lower

Application Dependent

Higher

Application Dependent

Routine Cleaning

YES

FREQUENTLY ASKED QUESTIONS

Need Help Selecting the Right Cleaning Pig?

Choosing among standard cups, studded cups, brushes, magnets, blades, and other cleaning components depends on the specific challenges in your pipeline.

The Enduro Pipeline Services cleaning pig team can help evaluate your application and recommend a cleaning pig configuration that meets your project objectives.

Questions about studded cleaning pig cups? 800-752-1628
J.R. Morgan, Director of Pipeline Cleaning & Maintenance — jrm@enduropls.com

Want to see how custom cleaning pigs are designed and manufactured? Contact our team to schedule a facility tour and learn why operators across North America rely on Enduro Pipeline Services for pipeline cleaning solutions.

Matt Hodson, Senior Product & Technical Specialist- matth@enduropls.com

Caliper Inspection vs. MFL Inspection: What's the Difference?

Thu, 04 Jun 2026 18:36:57 GMT

Caliper Inspection vs. MFL Inspection: What's the Difference?

What Is a Caliper Inspection?

A caliper inspection measures the internal geometry of a pipeline. Using mechanical or electronic sensing technology, a caliper tool records changes in the pipe's shape and identifies geometric anomalies that may affect pipeline integrity or the passage of inspection tools.

Caliper inspections are commonly used to detect:

Dents
Ovality
Wrinkles
Buckles
Mechanical damage
Bends
Geometric restrictions
Changes in internal diameter
Construction-related deformation

Caliper tools are often run during new pipeline commissioning, before inline inspection programs, or whenever pipeline deformation is suspected.

What Is an MFL Inspection?

Magnetic Flux Leakage (MFL) inspection is designed to identify metal loss and corrosion-related threats within a pipeline.

MFL tools magnetize the pipe wall and measure changes in the magnetic field caused by metal loss. These measurements allow analysts to identify areas where corrosion or wall loss may be present.

MFL inspections are commonly used to detect:

Internal corrosion
External corrosion
Metal loss
Pitting
General wall thinning
Corrosion growth

MFL technology provides critical information about pipeline wall condition and remaining wall thickness.

Pipeline operators have access to a wide range of inline inspection technologies, each designed to identify specific pipeline conditions and integrity threats. Two of the most commonly used technologies are caliper inspections and Magnetic Flux Leakage (MFL) inspections.

While both technologies play important roles in pipeline integrity management, they are designed to detect different types of features and are often used together as part of a comprehensive inspection program.

Feature

Detects Dents

Caliper Inspection

MFL Inspection

New Paragraph

Limited

Detects Buckles

New Paragraph

Yes

New Paragraph

Detects Metal Loss

Detects Corrosion

Detects Gouges

Pipeline Cleaning Required

Detects Ovality

Often Run Before MFL

Yes

FEATURES AT A GLANCE

Caliper Inspection vs. MFL Inspection

Although both technologies are used during inline inspection programs, they serve different purposes.

Caliper Inspection

MFL Inspection

Measures pipeline geometry

Detects dents and deformation

Identifies wrinkles and buckles

Evaluates ovality

Helps confirm tool passage

Focuses on geometric integrity

Measures metal loss

Detects corrosion and wall loss

Identifies pitting and corrosion growth

Evaluates remaining wall condition

Helps assess corrosion severity

Focuses on metal loss integrity

Simply put, a caliper tool evaluates the shape of the pipeline, while an MFL tool evaluates the condition of the pipe wall.

Why Many Operators Use Both Technologies

Pipeline integrity threats rarely occur in isolation.

A pipeline may contain:

Corrosion
Dents
Mechanical damage
Wrinkles
Buckles
Ovality

Using both caliper and MFL technologies provides operators with a more complete understanding of pipeline condition.

For example:

A caliper inspection may identify a dent caused by third-party damage.
An MFL inspection may determine whether metal loss is also present in the affected area.

Together, these technologies help operators make more informed integrity management decisions.

Why Pipeline Cleaning Matters Before Either Inspection

Regardless of the inspection technology being used, pipeline cleanliness plays a significant role in inspection success.

Debris, liquids, paraffin, mill scale, construction debris, and other contaminants can interfere with tool performance and impact inspection data quality.

Proper cleaning before a caliper or MFL inspection can help:

Improve tool passage
Reduce debris interference
Improve data quality
Reduce operational risk
Support more reliable inspection results

Many operators perform multiple cleaning runs before inspection activities to help ensure optimal tool performance.

Choosing the Right Inspection Technology

The appropriate inspection technology depends on the objectives of the inspection program.

If the goal is to identify dents, wrinkles, buckles, or geometric deformation, a caliper inspection may be appropriate.

If the goal is to assess corrosion, metal loss, or wall condition, an MFL inspection may be the preferred solution.

In many cases, operators use both technologies to obtain a more complete understanding of pipeline condition and support long-term integrity management programs.

Learn More

Enduro Pipeline Services supports operators with pipeline cleaning, caliper inspection technologies, MFL inspection solutions, pig tracking equipment, and inline inspection support services.

Whether you are preparing a new pipeline for commissioning, planning an integrity assessment, or evaluating inspection options, our team can help determine the right solution for your application.

Resources:

Caliper inspection → https://www.enduropls.com/pipeline-caliper-tools
DdL DW 2 → https://www.enduropls.com/caliper-ddl
MFL inspection → https://www.enduropls.com/mfl-dfl
Pipeline cleaning → https://www.enduropls.com/pipeline-cleaning-for-ili
Inline inspection support services → https://www.enduropls.com/pipeline-inline-inspection-services

Did You Know?

Caliper and MFL inspections answer different questions.

Caliper tools identify changes in pipeline geometry such as dents, wrinkles, and bore restrictions, while MFL inspection tools detect corrosion, pitting, and other forms of metal loss. Many integrity programs use both technologies together to provide a more complete assessment of pipeline condition.

Caliper and MFL are two important inline inspection technologies, but they are designed to answer different questions about pipeline condition. For a broader look at inspection methods, tool selection, deformation inspection, and mapping, visit our Pipeline Inspection Technologies Explained guide.

Need Help Selecting the Right Inspection Technology?

Whether you're evaluating pipeline geometry, investigating metal loss, preparing for inline inspection, or planning a complete integrity assessment, Enduro's team can help determine the right inspection strategy for your pipeline.

Request a Quote
Schedule a Technical Discussion

Planning an Inline Inspection?

Choosing between caliper and MFL—or deciding whether both may be appropriate—depends on the pipeline conditions, known concerns, and inspection objectives. Enduro provides pipeline inline inspection services using MFL, caliper and geometry, IMU, mapping, field support, and data analysis.

Explore Inline Inspection Services

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FREQUENTLY ASKED QUESTIONS

What Problem Does a Dual Diameter Cleaning Pig Solve?

Fri, 24 Apr 2026 14:52:07 GMT

What Problem Does a Dual Diameter Cleaning Pig Solve?

How a Dual Diameter Cleaning Pig Solves the Problem

A dual diameter cleaning pig is designed specifically for pipelines that change diameter.

Instead of being built for a single diameter, it is engineered to adjust as it moves between different pipe sizes while maintaining a working seal.

The key isn’t just that it can physically pass through both sections—it’s that it continues to clean effectively throughout the entire run.

It maintains contact with the pipe wall as the diameter changes, resulting in more consistent cleaning from start to finish.

Pipeline pigging is usually straightforward when a line stays the same size from end to end. The pig is selected for that diameter, it seals properly, and it moves through the pipe doing its job.

The challenge shows up when the pipeline changes size.

A section might transition from 24” to 30”, or the other way around, due to expansions, tie-ins, or older infrastructure being connected into newer systems. That’s where standard cleaning pigs start to fall short.

A standard cleaning pig is designed for a single consistent pipe diameter. When it encounters a change in size, it can no longer maintain a proper seal against the pipe wall.

In larger sections, the pig can lose sealing force, allowing product and debris to bypass it rather than being pushed forward. In smaller sections, it can become overly compressed, which affects performance and stability. Either way, the cleaning becomes inconsistent.

Even if the pig makes it through the entire line, the results are uneven. Some areas are cleaned effectively, while others are not—and those gaps can show up later as buildup, reduced flow, or unexpected maintenance issues.

For a closer look at standard cleaning tools, see our pipeline cleaning pigs page.

What's the difference between Dual Diameter and Multiple-Diameter Pigging Systems ?

Why Design Matters More Than People Think

What many people underestimate is how difficult that balance actually is.

If a pig is too stiff, it can struggle to transition between diameters.
If it’s too flexible, it may pass through—but won’t maintain enough sealing force to clean effectively.

A properly designed dual-diameter pig has to strike that balance:

Flexible enough to transition smoothly
Stable enough to maintain position
Strong enough to keep an effective seal

That balance doesn’t happen by accident—it comes from real-world experience.

Not All Dual Diameter Pigs Perform the Same

Over the years, many companies have tried to replicate dual-diameter pig designs.

But while designs can be copied, experience cannot.

At Enduro Pipeline Services, our dual-diameter pigs are based on a proven design refined through years of field work, tool development, and solving real pipeline challenges.

Because we don’t just design these tools—we manufacture them, run them, and see how they perform in actual pipeline conditions—we understand what works and what doesn’t.

That’s something that can’t be duplicated, and it’s why the original design continues to outperform.

Built for Real Pipeline Conditions

Pipeline conditions are rarely perfect.

Diameter changes are often combined with:

Debris
Flow variations
Operational constraints

That’s why dual diameter pigs need to do more than just pass through the line—they need to perform under real conditions.

At Enduro, these tools are designed, built, and tested with that in mind. Not just to get through the pipeline—but to do the job the entire way.

Why This Matters to Operators

Dual diameter pigs exist for one simple reason:

Pipelines don’t always stay the same size—but cleaning still has to be reliable from end to end.

When the right tool is used, operators get:

More consistent cleaning
Fewer missed sections
Better preparation for inspection
Fewer surprises after startup

Talk to Enduro About Dual Diameter Cleaning Pigs

If your pipeline includes diameter changes, the cleaning approach matters.

Our team can help evaluate your line, recommend the right solution, and make sure the job is done right the first time.

Not sure what you need? No worries, just call us at 800-752-1628

Need a Dual Diameter Cleaning Pig?

Understanding why dual diameter pigs are used is only the first step. If you're selecting a pig for a pipeline with diameter transitions, reducers, or complex geometry, explore our complete guide to dual-diameter cleaning pig configurations, applications, and custom designs

Taking the Guesswork Out of Pig Tracking with Enduro's Non-Intrusive Pig Signal

Tue, 14 Apr 2026 14:46:33 GMT

Understanding how non-intrusive pig tracking improves visibility, efficiency, and confidence in the field

If you’ve ever been out in the field trying to track a pig through a pipeline, you know how quickly things can get complicated. Conditions aren’t always ideal—visibility can be poor, locations are often remote, and setups are sometimes only temporary. In moments like that, even a small bit of uncertainty can slow everything down. That’s exactly the kind of situation the Enduro Non-Intrusive Pig Sensor was designed for.

Instead of relying on traditional setups that require cutting into the pipeline or running wires, the unit keeps things simple. It mounts directly to the outside of the pipe, so there’s no hot work, no modifications, and no drawn-out installation process. You can get it in place in seconds and just as easily move it if the job changes.

That flexibility makes a real difference when you’re working in temporary locations, valve sites, or stretches of line where setting up permanent equipment just isn’t practical. You’re not tied down—you can place the sensor where you need it and adjust as you go.

When the pig passes, the sensor detects its magnetic field and provides a clear visual alert. It’s immediate and easy to read, which removes a lot of the second-guessing that can happen in the field. You don’t have to wonder if you missed it or if something didn’t trigger correctly—you know right away. Because everything happens externally, the system also stays consistent across different conditions. Whether it’s a routine cleaning run or a more critical inspection, you get the same straightforward signal every time.

What stands out most about Non-Intrusive Pig Signal is how much simpler it makes the job. It cuts down setup time, reduces equipment complexity, and lets you focus more on the actual run instead of the tools around it. One unit can even be used across multiple locations, which helps when you’re moving between jobs or coordinating across sites.

At the end of the day, it’s not about adding another piece of equipment—it’s about removing uncertainty. Attach it, align it, and watch for the alert when the pig passes. That’s really all there is to it. And when you’re the one out there in the field, that kind of simplicity goes a long way.

A few tips and tricks from our engineers behind the product: Operators should regularly inspect and replace batteries to ensure uninterrupted operation. It’s also important to confirm proper unit placement to avoid external magnetic or electrical interference. Additionally, providing Enduro with feedback based on field experience can help drive continuous product improvement.

As always, our team of experts is here to help. Call 800-752-1628 or you can order these units 24/7 directly from our Shopify store: Non-Intrusive Pipeline Pig Sensor – Enduro Pipeline Services .

McKenzee O'Neal

Product Sales

mckenzeeo@enduropls.com

Enduro's Wireless Geophone

Thu, 29 Jan 2026 14:51:42 GMT

Built for the field

McKenzee O'Neal- Product Sales

At Enduro, our Wireless Geophones are built by people who understand how they’re used in the field. Having spent years assembling and inspecting these units firsthand, I’ve seen the level of care and precision that goes into every component—and I know who’s relying on them once they leave our hands.

Accuracy, consistency, and reliable tracking are at the center of how Enduro geophones are built. Every unit is designed to capture precise motion data so crews can trust that their measurements reflect exactly what’s happening on the ground. From sensor alignment and internal assembly to final testing, each geophone is put together with the goal of delivering high-quality, actionable tracking data in real field conditions. This isn’t just about meeting specifications—it’s about supporting confident decisions in the field and giving crews the tools they need to work efficiently and effectively.

Every design and assembly decision is made with the field in mind. Enduro geophones are built to integrate smoothly into workflows, maintain precise timing, and provide clear, consistent tracking throughout the job. That attention to detail reflects our respect for the crews who rely on this equipment every day. Knowing that the data collected is accurate and reliable helps teams make better decisions on the spot, whether they’re adjusting layouts, troubleshooting equipment, or analyzing measurements.

Wireless design further supports field operations. By eliminating cables, Enduro geophones allow crews to deploy efficiently, adapt to challenging terrain, and maintain flexible layouts without added complexity. The freedom to move units quickly and easily gives survey teams the flexibility to handle unexpected obstacles, reach difficult locations, and respond to changing conditions—all while maintaining consistent tracking and data collection across the survey area.

Tracking is more than just a measurement—it’s the foundation for actionable insights. When geophones consistently capture motion data with precision, crews can have confidence that the information they’re seeing reflects the site's reality. That reliability reduces guesswork, keeps surveys on schedule, and ensures that the results collected can be used with confidence for analysis, reporting, or operational decisions.

At Enduro, we don’t just design geophones—we build them with the people in the field in mind, knowing that accurate tracking and reliable data start with equipment assembled with care and purpose. Every unit that leaves our shop is intended to make fieldwork smoother, faster, and more precise for the teams who rely on it.

Tips & Tricks for Enduro Geophones

Check power first: If your geophone isn’t turning on, confirm the batteries are installed correctly and have sufficient charge.
Remove batteries for storage: Always take batteries out during storage to prevent corrosion and extend battery life.
Charge accessories: Make sure the headphone set and speaker are fully charged before assuming there’s an issue with the unit.
Power off after use: Turn the geophone off and remove the batteries before transport or storage.
Ensure proper contact: For the best tracking accuracy, seat the geophone firmly and orient it correctly on the ground.
Avoid loose or uneven surfaces: Place units on solid ground to maintain consistent measurements.
Maintain consistent placement: When redeploying, try to position geophones similarly to their previous deployment.
Keep them clean: Remove dirt and debris from housings to ensure consistent performance.
Protect from water: Enduro geophones are extremely durable, but they are not waterproof . Avoid exposure to heavy rain or submersion.

How to track pipeline pigs using a wireless geophone.

Ready to purchase? You can purchase Wireless Geophones, tracking equipment, and urethane pigs directly from our store: SHOPENDURO

Want information? Give me a call at 918-446-1934 Ext. 121 or email  mckenzeeo@enduropls.com 

McKenzee O'Neal

Product Sales

Meet our cleaning and maintenance experts: Pipeline Cleaning Pigs | Enduro Cleaning Pig Tools Me

The Evolution of Pipeline Pigs

Fri, 26 Sep 2025 13:25:41 GMT

From Squeals to Smart Tech: The Evolution of Pipeline Pigs

If you’ve ever wondered why a high-tech pipeline tool carries the humble name “pig,” the answer takes us back more than a century—when pipeline cleaning was loud, messy, and surprisingly inventive.

The Squealing Origin

The earliest “pigs” were nothing like today’s precision-engineered tools. Pipeline operators stuffed straw bales or leather bundles wrapped in barbed wire or metal discs into their lines to scrape away wax, rust, and other buildup. As these makeshift devices rattled along, friction against the pipe wall created a piercing squeal. Crews said it sounded like a pig in distress—and the name stuck.

From Crude Cleaners to Engineered Solutions

Over time, operators refined these tools into purpose-built cleaning pigs. Instead of straw and wire, urethane cups and discs became standard, providing better sealing and consistent cleaning action. Enduro has carried that spirit of innovation forward with a full line of urethane and specialty cleaning pigs designed to tackle everything from heavy black powder to stubborn scale in pipelines from 2" to 60".

Cup Pigs and Disc Pigs : Reliable, economical options for routine debris removal.
Wire-Brush and Magnetic Pigs : Ideal for rust, mill scale, or black powder.
Custom Builds : Enduro engineers design pigs to match unique diameter changes, bends, or pressure conditions—because no two pipelines are alike.

The Rise of “Smart Pigs”

Cleaning eventually paved the way for inspection. Operators began adding sensors and electronics to record pipeline conditions as the pig traveled. These “intelligent” or “smart pigs” now map corrosion, measure wall thickness, and detect tiny cracks—all without shutting down the line.

Enduro supports this next step too. A clean line is critical before any in-line inspection (ILI) run, and our cleaning pig programs prepare pipelines for the most accurate smart-pig data —saving time, money, and potential re-runs.

Why Cleaning Still Matters

Even in the age of sophisticated ILI tools, effective cleaning is the foundation of pipeline integrity . Residue or liquids left behind can compromise sensor readings and create costly delays. That’s why Enduro’s Cleaning Division offers:

Expert Consultation : We evaluate every line’s history, product, and operating pressure to recommend the right pig and cleaning sequence.
Quick Turnaround : Most standard pigs ship same day, and custom orders are fast-tracked from our Tulsa, Oklahoma manufacturing facility.
Proven Reliability : Backed by decades of field success and a 96% “extremely satisfied” customer rating.

Keep Your Pipeline Running at Its Best

From the squeal of straw bales to the quiet efficiency of today’s smart technology, pipeline pigs have come a long way. Yet the core mission remains the same: keep product moving safely and efficiently .

Whether you need a simple urethane cup pig or a complete pre-ILI cleaning program, Enduro Pipeline Services is here to help.
Request a Quick Quote or explore our full line of cleaning pigs to find the right tool for your line.

Choosing the Right Cleaning Pig: A Pipeline Operator’s Perspective

Fri, 22 Aug 2025 18:14:10 GMT

Custom Pipeline Cleaning Pigs and Programs Designed for Your Line

This article was written by Chris Escoe, Senior Product & Technical Specialist at Enduro, with over 20 years in pipeline pigging and cleaning.

After more than 29 years in the pipeline industry, I’ve learned one simple truth: no two pipelines are alike, and no two cleaning programs should be either. Every operator wants the same thing — reliable performance, fewer surprises, and inspection runs that don’t fail because of debris or preparation issues. But the way you get there depends on your pipeline’s unique conditions.

That’s why at Enduro, we don’t just build cleaning pigs. We work with operators to design custom cleaning solutions that align with the pipeline, the debris load, and the long-term integrity management goals.

Start With the Pipeline, Not the Pig

When operators ask me what cleaning pig they should run, my first question back is simple: What’s in your line?

Is it paraffin, scale, black powder, or mixed debris?
Are you preparing for in-line inspection, or just keeping flow efficient?
What kind of bends, valves, and diameter changes do we need to plan for?

The answers shape everything that follows. A brush pig can scrape deposits that a foam pig would glide past, while a magnet pig will pick up ferrous debris that brushes won’t touch. Sometimes you run them together, other times separately — it all depends on the cleaning objective.

Custom Configurations That Work

I've spent my career designing custom cleaning plans because operators can't afford cookie-cutter answers. Depending on the application, a cleaning pig may require a specific cup or disc configuration for sealing and control, brushes or scraper components for mechanical cleaning, magnets for collecting ferrous debris, bypass for managing pig speed and debris movement, or a combination of components. Pipeline geometry and operating conditions also matter when determining the right configuration.

Why I Love This Work

For me, pipeline pigging isn’t just about tools — it’s about teamwork. I’ve built strong friendships in this industry, and I value every chance to speak with an operator, talk through their challenges, and help find a solution.

My background as a former athlete taught me that persistence and preparation matter as much as performance. That’s how I approach every project: plan hard, work hard, and keep the customer first.

As I like to say: “The will to prepare to win is just as important as the will to win.”

Let’s Talk About Your Line

If you’re facing a tough cleaning challenge, you don’t have to figure it out alone. Our Cleaning Pig Division is here to help you design the right configuration, get tools delivered on time, and keep your operation moving.

Buried in Crud: The Real Cost of Skipping Proper Cleaning

Tue, 29 Jul 2025 16:14:24 GMT

Would You Still Run That ILI Tool If You Knew What Was Waiting in the Receiver?

We’ve all seen the photos — ILI tools coming back completely buried in gunk. Thick, sticky, caked-on debris. And every time I see one, I can’t help but ask myself:

If the operator knew the tool would come out looking like this... would they have run it in the first place?

Here’s one of those photos from a crude line that hadn’t been cleaned properly before the inspection. Take a close look at the MFL detection section — specifically the sensor assembly just above the yellow moment arms. Those shiny little tabs are designed to stay in direct contact with the pipe wall. Any lift-off from debris? Your data’s already compromised.

These tools rely on clean, consistent background magnetization to calculate accurate metal loss readings. If debris is keeping the sensors off the wall, not only is your baseline wrong, but the peak values of leakage (the whole point of the run) are skewed too. Bottom line: you’re not getting the data you need .

So, what’s the fix?

In line conditions like this, a few foam pigs or basic brushes just aren’t going to cut it. Odds are, you’ve got hard wax or paraffin bonded to the pipe wall. Sure, you can try brushing — but in this environment, those brushes will pack up fast and quit doing their job halfway down the line.

You need more.

We’re talking chemical cleaning, combined with the right tools. Heavy-duty cleaning pigs . Tandem-section tools that bring weight, muscle, and more cleaning surface to the fight. And even then, don’t send them in first. You’ve got to pig in stages , building up with each run. Otherwise, your receiver’s going to be overwhelmed by the sheer volume of debris.

In some cases, xylene flushes are an excellent option to break up wax and allow cleaning tools to work more effectively. Just don’t waste your time on foam pigs in a mess like this — they won’t make a dent.

If it’s your name on the ILI schedule and you’re prepping a crude line that hasn’t seen proper maintenance, do yourself a favor: talk to your service provider before the run.

This is exactly what we deal with at Enduro, day in and day out. From chemical cleaning strategies to tool selection, we help operators get these lines ready — because if the cleaning isn’t done right, the ILI team can’t do their job. It’s a hand-in-glove operation.

Get it done right the first time, and everybody wins.

— Have questions about cleaning before your next ILI run? Give us a call at 800-752-1628, visit our website at www.enduropls.com or get started with a quote at www.enduropls.com/quick-quotepage . We’re here to help.

Ensuring Pipeline Integrity Starts with Proper Cleaning

Fri, 25 Jul 2025 16:39:45 GMT

Choosing the Right Pig for the Job.

With over 30 years of experience in pipeline operations, I’ve seen firsthand how essential proper cleaning is to pipeline integrity. Whether you're transporting crude oil, refined products, or gas, a proactive pigging program isn’t just recommended—it’s foundational.

At Enduro, I work closely with operators facing complex cleaning challenges. When the job gets tough, I help customers select the right solution for their system's debris, configuration, and operational demands.

Choosing the Right Pig for the Job. In the above photos we’ve shared, you’ll see examples of heavy ferrous debris—material that can severely compromise flow efficiency and inspection quality.

To address this type of contamination, I typically recommend:

Rare-earth magnet-equipped pigs to attract ferrous material
Multiple runs to account for magnet saturation
Combination pigs with cups and discs for both scraping and sweeping
Increased pig weight for enhanced scraping force
Additional cleaning elements (extra cups, discs, or brushes)
Multi-section pig trains for heavily contaminated lines

Maintaining a consistent speed of 2–5 MPH is critical. Pigs should be run until debris levels significantly taper off and magnets indicate minimal remaining material.

Establishing a Cleaning Schedule. A successful pigging program starts with establishing a clean baseline. Once debris levels are reduced, set a routine cleaning frequency.

If quarterly runs still retrieve large volumes of debris, it's a clear indicator that your schedule needs adjustment. Regular cleaning minimizes risk, supports efficient operation, and ensures your system is always ready for inline inspection (ILI).

Clean Before You Inspect. Ferrous debris can have a direct, negative impact on ILI tool performance, causing: • Sensor lift-off • Odometer wheel inaccuracies • Magnet section saturation.

These issues lead to poor data, failed inspections, and costly reruns. Cleaning prior to ILI isn’t optional—it’s an operational requirement.

Pipeline integrity doesn’t start with inspection. It starts with cleaning.

If you're unsure which cleaning pig is best suited for your system, our team is ready to assist you. I invite you to discuss your project needs with us, whether through a phone call, email, or by visiting our headquarters in Tulsa. During your visit, you'll have the chance to tour our manufacturing facility, learn more about our products and services, and work with our experts to create a customized cleaning solution tailored to your specific project.

To schedule a consultation, reach out to our team today. We’re here to support your operations—every step of the way.

J.R. Morgan: jrm@enduropls.com | Toll free 800-752-1628 | Office 918-446-1934 | Cell 918-557-5067

This article was written by J.R. Morgan, Director of Pipeline Cleaning and Maintenance at Enduro, with over 30 years in pipeline industry.

The Innovation Behind Enduro's new Dynamic Speed Control (DSC 2.0)

Fri, 25 Jul 2025 16:28:19 GMT

High-Flow Pipelines Demand Smarter Solutions

Why is maintaining throughput during pipeline operations so critical? Throughput has a direct impact on operational efficiency and revenue. However, certain activities—such as in-line inspections (ILI) and cleaning—require significantly lower tool speeds to be effective. That creates a challenge, especially in high-flow gas pipelines, where reducing flow just to slow down the tool isn't always feasible.

What speed ranges are ideal for ILI and cleaning tools? For effective cleaning, the optimal speed is between 2 and 5 mph. For in-line inspections, the ideal range is 3–6 mph. Staying within these ranges is key to getting accurate data and thorough cleaning.

How does Enduro’s DSC 2.0 help address this challenge? The Dynamic Speed Control (DSC 2.0) system allows our tools to operate at optimal velocities without requiring flow reduction. It’s a game-changer for operators who want to maintain production rates while achieving high-quality inspection and cleaning.

What makes the DSC 2.0 different from other solutions? It’s a compact, standalone unit that integrates speed control with a high-performance cleaning tool. It was developed using advanced 3D modeling and CFD (Computational Fluid Dynamics) engineering, so it’s designed to perform in demanding environments.

What are the biggest benefits operators see with DSC 2.0? There are several:

No need to reduce flow to hit target tool speeds
Improved ROI and reduced downtime from better data and fewer re-runs
Smart speed control , which helps avoid speed spikes that compromise performance
A compact, economical design that’s easy to deploy
Full compatibility with Enduro’s cleaning and ILI tools
It’s ideal for systems where reducing flow isn’t an option

What types of pipelines are best suited for DSC 2.0? It’s perfect for high-flow systems where adjusting throughput isn’t feasible.

What’s the bottom line for operators considering DSC 2.0? With DSC 2.0, you don’t have to choose between efficiency and data quality. You get both. It’s a smart, cost-effective way to maximize performance without compromising your operations.

To schedule a consultation, please get in touch with our team today. We’re here to support your operations—every step of the way.

info@enduropls.com | Toll free 800-752-1628 | Office 918-446-1934 | Cell 918-557-5067

Visit: Dynamic Speed Control 2.0 | Enduro Pipeline Services

#Pipeline#PipelineIntegrity #PiggingSolutions #PipelineMaintenance #ILI #OilAndGas #EnduroPipelineServices

Pigging & Pipeline Insights

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How to Choose the Right Pipeline Pig for Wax and Paraffin Removal

What Is the Best Pig for Wax Removal?

Why Wax and Paraffin Buildup Matter

Comparing Pigs for Wax and Paraffin Removal

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Brush Cleaning Pigs

Foam Pigs

Why Progressive Cleaning Is Often the Better Approach

Five Common Wax-Removal Mistakes

1. Starting With the Wrong Level of Aggressiveness

2. Expecting One Pig Run to Solve Everything

3. Ignoring Flow and Pressure Conditions

4. Failing to Prepare Properly for ILI

﻿ 5. Treating Every Pipeline as a Standard Application

Build the Cleaning Program Around the Pipeline

Pipeline Pig Tracking: What I’ve Learned About Knowing Where the Pig Is

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Why Do Pipeline Crews Need to Track a Pig?

What’s the Difference Between Locating a Pig and Confirming Passage?

What Is a Transmitter?

What Is the Receiver Actually Doing?

What Is a Geophone?

Why Use More Than One Tracking Method?

What Is the Difference Between a Pig Popper and a Non-Intrusive Sensor?

What Happens If the Pig Doesn’t Arrive?

What Should You Consider When Choosing Tracking Equipment?

What Have I Learned About Pig Tracking?

Don’t Lose the Pig

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What Causes MFL Data Loss During Pipeline Inspection?

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Vicky Hodson Geospatial Development & Partnerships Specialist

From Static Reports to Living Data

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Preparing Pipeline Data for What Comes Next

Where Enduro Fits

How GIS Is Changing the Way Operators Use ILI Data

Vicky Hodson Geospatial Development & Partnerships Specialist

How Many Cleaning Pig Runs Does a Pipeline Need?

How Many Cleaning Pig Runs Does a Pipeline Need?

Why Isn’t There a Standard Number of Runs?

What Does “Clean Enough” Mean?

What Happens During a Progressive Cleaning Program?

1. Initial Cleaning Run

2. More Aggressive Cleaning

3. Brush or Magnetic Cleaning

4. Additional Verification Runs

5. Inline Inspection

What Should Be Evaluated After Each Run?

Let the Pipeline Determine the Number of Runs

Download the Technical Decision Framework

Should You Rebuild or Replace Your Pipeline Pig?

Learn how rebuild kits can extend the life of your cleaning pigs, reduce costs, and keep your pigging program running efficiently.

Pipeline Pigs Are Built to Work Hard

What Does a Pipeline Pig Rebuild Kit Include?

When Should You Rebuild a Pipeline Pig?

When Is Replacement the Better Option?

One Size Doesn't Fit Every Pipeline

Built Right Here in Tulsa

Come See How It's Done

Get More From Your Pipeline Pig Investment

Studded Cleaning Pig Cups: When More Aggressive Cleaning Is Needed

Understanding When Studded Cleaning Pig Cups May Improve Pipeline Cleaning Performance

What Are Studded Cleaning Pig Cups?

Why Are Metal Studs Added to Cleaning Pig Cups?

Common Applications for Studded Cleaning Pig Cups

Heavy Wax or Paraffin Deposits

Mill Scale Removal

Pipeline Preparation for Inline Inspection

Difficult Cleaning Conditions

Are Studded Cups Right for Every Pipeline?

Studded Cups vs Standard Urethane Cups

Feature

Standard Cups

Studded Cups

5. Treating Every Pipeline as a Standard Application

Vicky Hodson
Geospatial Development & Partnerships Specialist

Vicky Hodson
Geospatial Development & Partnerships Specialist