Pipeline Internal Inspection & Evaluation Technical Services

Corrosion Defects

It covers uniform internal wall corrosion, localized pitting corrosion, pit corrosion, circumferential / axial corrosion grooves, corrosion wall thinning, weld corrosion, joint corrosion and others. Quantitative detection of corrosion severity, area, depth and distribution position can be realized.

Crack Defects

It covers circumferential cracks, axial cracks, weld cracks, heat-affected zone (HAZ) cracks, fatigue cracks, stress corrosion cracks (SCC), hydrogen-induced cracks and other micro and propagating cracks, enabling identification of early microcracks and critical hazardous cracks.

Geometric Deformation

 Defects

It includes excessive pipeline ovality, dents, bulges, wrinkles, bends, diameter variations, deformations caused by mechanical damage, geometric deformations resulting from third-party damage, etc.

Weld Defects

It can identify welding defects such as incomplete penetration, lack of fusion, misalignment, undercut, slag inclusion, porosity, abnormal weld reinforcement and weld cracking.

Leak Defects

Comprehensive inspection based on pressure, flow rate, imaging and other means enables identification of minor pipe wall leakage, joint leakage, seal failure, medium overflow risks and other hidden troubles.

Wall Thinning

It includes defects causing insufficient effective pipe wall thickness, such as erosion thinning, abrasion thinning, erosion cavities, mechanical scratches and groove damage.

Foreign Object Blockage

 Defects

Identify abnormal conditions affecting transportation efficiency, including internal pipeline scaling, sediment deposits, wax blockages, hydrates, debris accumulation and localized blockages.

Material Aging

Multi-dimensional data (indirect identification) are combined to determine structural degradation characteristics including pipeline material aging, embrittlement, interlayer delamination, damage and delamination of linings / anti-corrosion coatings.