Solving challenges on unpiggable pipelines using dual-diameter MFL inspection technology

Using MFL Inspection Tools for Unpiggable Pipelines


A 42inch pipeline with a 36inch section is plagued with external corrosion, and for many years, the pipeline was considered unpiggable.



PIPECARE designed a dual-diameter magnetic flux leakage (MFL) pig with receding sensor shoes for the 36inch section for maintaining the circumferential inspection frequency. We utilised the 36x42 inch MFL tool for the inspection of this pipeline.


One in five sensors would recede in the 36inch section and the suspension of the sensors would re-arrange the remainder sensors and thus maintaining the circumferential inspection resolution.



The pipeline was successfully cleaned and inspected without any risks. PIPECARE's innovative design of cleaning and inspection tools have solved the challenge of making the unpiggable lines, piggable.

PIPECARE has its own proprietary design and production facilities augmented with its R&D facility and its Centre of Excellence. The pipeline inspection company has a fleet of more than 1000 extra high-resolution inspection tools ranging from 3 in. to 56 in. in size. Currently, development is in progress for other multi-diameter cleaning and inspection tools.

The performance of PIPECARE tools has been independently verified and found to fully comply with the industry latest specifications. 100% client satisfaction is sustained by proper project management and qualified field staff who can handle any ILI challenge.

PIPECARE provides engineering studies, removal of black powder from gas pipelines, pipeline rehabilitation and composite repair, pipeline digital mapping and ILI data management.



Mar 2021


Well Tubing Inspection (WTI)

PIPECARE has received a request to create customized Well Tubing Inspection Tools. After successful runs, we are happy to offer this technology to al ...


Feb 2021


Who Performs the Natural Gas Pipeline Inspection?

Gas pipeline inspection ensures the integrity and proper working of oil and natural gas pipelines. Pipeline inspection is inevitable for a functional ...


Feb 2021


PIPECARE Group wins first place in Abu Dhabi Chamber SME Awa ...

PIPECARE Group has won the top award in the 1st edition of the Abu Dhabi Chamber SME Awards. The award ceremony has been held in Abu Dhabi on 16 Feb 2 ...


Feb 2021


Who Can Use EMAT for Pipe Inspection?

EMAT inspection and EMAT testing are the best ways to ensure your pipelines are working to their maximum capacity. It ensures pipeline integrity and l ...


Feb 2021


What Is In-Line Inspection?

In-line inspection by a pipeline inspection company ensures that your ILI pipeline is optimally transmitting your products in a timely and efficient m ...


Feb 2021


How to Detect Leakage Using Magnetic Flux Testing

Magnetic flux leakage can affect how your pipeline delivers products. The use of MFI tools helps you better manage your pipelines, especially during i ...


Jul 2019


Solving challenges on unpiggable pipelines using dual-diamet ...

One of the pipelines we inspected had a 36inch section in a 42inch diameter pipeline. The pipeline carries crude oil and is plagued with external corr ...


Oct 2018


Successful inspection of unpiggable loading lines using stat ...

Successfully completion of the cleaning and inspection of three strategic crude oil loading lines that had been deemed unpiggable.

Leave a Reply

Your email address will not be published.