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IndustryGlossary Term

Tight Gas

Natural gas trapped in low-permeability rock formations that require hydraulic fracturing or horizontal drilling to extract. For subcontractors, tight gas projects typically involve intensive well stimulation work and longer mobilisation cycles. Expect higher equipment demands and specialised crew certifications on these sites.

Related Terms

DUC (Drilled-but-uncompleted Well)

Industry

A well that has been drilled but is awaiting completion work such as fracturing, perforating, or production tie-in. Operators stockpile DUCs when commodity prices are low, then activate them when prices recover. For subcontractors, a large DUC inventory signals upcoming bursts of completion and surface work.

SCOOP (South Central Oklahoma Oil Province)

Industry

A major oil and gas play in south-central Oklahoma targeting Woodford and Springer shale formations. Subcontractors working this basin should expect high-volume drilling and completions activity. It is a key area for securing long-term field service contracts.

Heavy Crude

Industry

Oil with high viscosity and density, requiring specialised handling equipment and heat-assisted extraction methods. Field crews working heavy crude sites often face more demanding maintenance schedules and equipment wear. Subcontractors should factor in higher mobilisation and operational costs when tendering these projects.

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.

Instrument Air Systems

Industry

Compressed air networks that power pneumatic valves, controls, and instrumentation on oil and gas and industrial sites. Subcontractors must ensure supplied air meets strict dryness and purity standards before connecting equipment. Contaminated or wet instrument air can damage sensitive controls and trigger costly shutdowns.

Run Schedule

Industry

A timeline that outlines when specific tools, equipment, or crews are deployed downhole or on-site during an operation, dictating when a subcontractor's services are required and for how long. For field service companies, the run schedule directly determines mobilisation timing, crew rotations, and invoiceable hours on location.

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