100% volumetric pipeline wall inspection from within the operational flow — detecting internal corrosion, external corrosion beneath coating, mechanical damage, and cracking across the full pipeline length without interrupting product delivery, using MFL and UT intelligent pig platforms.
Inline inspection (ILI) using
intelligent pig platforms is the only inspection method that provides 100%
volumetric coverage of the pipeline wall from within the operational flow —
detecting the internal corrosion, external corrosion beneath coating, mechanical
damage, and manufacturing anomalies in pipe body and welds that are invisible
to external survey and dangerous to miss.
MFL (Magnetic Flux Leakage) pigs
magnetise the pipe wall to saturation and detect the flux leakage field that
escapes at areas of reduced wall thickness — from internal and external
corrosion, mechanical dents, and manufacturing defects. MFL is the industry-standard
technology for metal loss survey in carbon steel pipelines, providing reliable
detection and sizing of general and pitting corrosion across large pipeline
diameters and distances without taking the pipeline out of service.
Ultrasonic ILI pigs deploy UT
transducer arrays transmitting and receiving acoustic pulses through the pipe
wall — providing direct wall thickness measurement, precise depth sizing of
metal loss features, and detection of axially and circumferentially oriented
cracking that MFL cannot reliably characterise. UT ILI is the required
technology for crack assessment in high-pressure, high-consequence pipeline
systems.
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Oil and gas transmission
pipeline metal loss survey — onshore and offshore
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High-pressure gas pipeline
crack detection — stress corrosion cracking (SCC) and seam weld cracking
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Water injection pipeline
internal corrosion survey — upstream and midstream
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Chemical and product
transfer pipeline wall loss assessment
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Pipeline system remaining
life determination and integrity management programme data
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Regulatory inspection
compliance — pipeline integrity management requirements
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ASME B31.8S — Managing
System Integrity of Gas Pipelines — ILI as the primary assessment method
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API 1160 — Managing System
Integrity for Hazardous Liquid Pipelines — ILI requirements
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ASME B31G — Manual for
Determining the Remaining Strength of Corroded Pipelines
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RSTRENG — Remaining
Strength of Corroded Pipe — corrosion assessment methodology
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DNV-RP-F101 — Corroded
Pipelines — remaining pressure containment capacity assessment
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NACE SP0102 — In-line
Inspection of Pipelines — ILI tool selection and programme management
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Pipeline Safety Regulations
applicable by country of operation