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IndustryGlossary Term

Wall Thickness Assessment

An inspection process that measures remaining material thickness in pipes, vessels, or structural components to detect corrosion or erosion. Subcontractors are often hired to perform these assessments using UT (Ultrasonic Testing) equipment. Results determine whether assets require repair, replacement, or continued monitoring.

Related Terms

Appraisal Drilling

Industry

Drilling program that follows an initial discovery to confirm reservoir size and commercial viability. For subcontractors, it means short-term, high-intensity scopes between exploration and full development phases. Mobilisation windows can be tight and contract durations unpredictable.

Asset Integrity

Industry

The ongoing process of ensuring equipment and structures perform their intended function safely and efficiently. For subcontractors, it drives demand for inspection, maintenance, and repair scopes across the project lifecycle. Clients often mandate documented asset integrity programmes before awarding field service contracts.

High-Temperature Creep

Industry

The slow, permanent deformation of metal components under sustained stress at elevated temperatures. Subcontractors must watch for creep in pressure vessels, piping, and structural welds during high-heat operations. Missed signs can lead to equipment failure, costly shutdowns, and liability exposure.

MOU (Memorandum of Understanding)

Industry

A non-binding agreement outlining the intent to work together before a formal contract is signed. Subcontractors use MOUs to secure preferred vendor status or reserve capacity for upcoming projects. They carry no payment guarantee, so avoid mobilising resources based solely on an MOU.

Wireline

Industry

A method of lowering tools, instruments, or equipment into a wellbore via a steel cable, commonly used for well logging, perforating, and intervention services. For subcontractors, wireline work is typically scoped as a specialised service requiring certified operators and dedicated equipment spreads.

Deepwater

Industry

Refers to offshore oil and gas operations conducted in water depths exceeding 300 metres, where subcontractors and field service crews must hold specialised certifications, work within stricter regulatory frameworks, and often face extended mobilisation timelines and higher equipment day-rates.

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