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Industry Glossary Term

Self-Build

A project where the owner acts as their own general contractor, hiring subcontractors directly rather than through a prime contractor. For field service companies, this often means faster access to work but requires closer coordination with the owner. Payment terms and scope changes are negotiated directly, so clear contracts are essential.

Related Terms

Rig-Released

Industry

Status indicating a drilling rig has been formally stood down and all associated services are no longer required. For subcontractors, it triggers demobilisation, final invoice submission, and crew release. Contracts often specify notice periods and standby rates tied to this status.

Compression

Industry

The mechanical process of increasing natural gas pressure for pipeline transport or storage. Subcontractors are frequently mobilised to install, maintain, or repair compressor units and associated equipment. Compression work is common in gas processing facilities, wellsites, and midstream pipeline operations.

Clastic Reservoir

Industry

A rock formation made of compacted sediment fragments — like sandstone or conglomerate — that holds oil or gas. Most drilling and completions work in Western Canada targets clastic reservoirs. Knowing the formation type helps crews anticipate ground conditions and equipment requirements.

AFE (Authorization for Expenditure)

Industry

A budgeting document used in oil and gas projects that outlines expected costs and seeks approval before work begins. Subcontractors often work under AFEs issued by operators.

WTI (West Texas Intermediate)

Industry

A global benchmark crude oil price used to gauge market health and operator spending confidence. When WTI prices drop, clients often freeze or cut field service contracts and budgets. Rising WTI typically signals more work and stronger mobilisation activity for subcontractors.

Shaker Screen

Industry

A mesh filter used in drilling operations to separate rock cuttings and solids from drilling fluid (mud). Subcontractors handling fluid management or solids control equipment must monitor screen condition closely. Worn or damaged screens reduce efficiency and can trigger costly downtime charges.

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