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Metal loss inspection

All pipelines are subject to corrosion over time during operation. This is a natural and almost inevitable process that once started is impossible to stop. The main danger of corrosion growth is associated with the loss of metal that occurs in the pipeline. As soon as the pipeline wall begins to lose metal, and thus the wall thickness begins to decrease, the ability of the pipeline to withstand excess pressure also decreases. Also, corrosion products that settle in deposits on the pipe walls create problems for the transport of the product (for example, “black dust”).

MFL and caliper

Внутритрубные дефектоскопы МФЛ 530 мм и Калипер 530 мм

MFL and caliper2

Внтутритрубные дефектоскопы МФЛ530 мм и Калипер 530 мм

MFL and caliper
MFL and caliper2
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Operating a pipeline that is severely corroded is extremely dangerous as it may result in a pipeline rupture at the rated operating pressure that was calculated based on the design specifications. Therefore, it is necessary to either reduce the operating pressure to a safe level or replace the corroded pipe sections. In any case, it is vital for the pipeline operator to know the location, size and significance of the metal loss defects in order to plan further actions to ensure safe and reliable operation of the pipeline.

The main technology currently used to detect, measure and identify defects is magnetic inspection. This technology has been the traditional choice of pipeline operators for decades and has long been recognized by pipeline industry professionals worldwide. Magnetic inspection tools come in one of two basic configurations:

MFL tool 530 mm

TFI tool 325 mm

One of the main activities of Industria LLC is the provision of in-line inspection services on oil and gas pipelines with a nominal size from 6” to 56” for metal loss using both TFI and MFL technologies. We develop our in-line equipment ourselves, so we have full control over its design and specifications and we can adapt it to non-standard requirements of specific projects. The quality of our services for metal loss inspection meets the requirements of the Pipeline Operators Forum (POF ver. 2016), our ILI tools have ultra-high resolution and provide the most accurate and reliable data that meets the most stringent industry standards

 

Main accracy performance parameters:

For metal loss defects:          minimum depth of detectable defects: 5% of wall thickness
Depth measurement:           not worse than  +/-10% of wall thickness
Length and width measurement:  not worse than  +/-10mm

Contact us for more detailed information