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Industry Glossary Term

Remediation

The cleanup and restoration of contaminated soil, water, or sites to meet regulatory standards. Subcontractors are often hired specifically for remediation scopes on legacy sites or post-incident cleanup. Work is heavily documented and subject to environmental compliance sign-off.

Related Terms

Coiled Tubing

Industry

A continuous steel tube wound on a large reel, deployed downhole for well interventions, cleanouts, and stimulation work. Subcontractors often support CT operations as part of completions or well servicing scopes. Specialised CT crews and equipment typically require separate mobilisation planning and rate structures.

Hydrovac

Industry

A truck-mounted unit that uses pressurised water and a vacuum system to excavate soil safely around buried utilities. Subcontractors are frequently hired for hydrovac work on pipeline, civil, and utility projects. It is preferred over mechanical digging in areas with high strike risk.

LNG (Liquefied Natural Gas)

Industry

Natural gas cooled to -162°C to become liquid for easier transport and storage, creating specialized work opportunities for subcontractors in cryogenic equipment maintenance, pipeline construction, and terminal facilities that require specific safety certifications and cold-weather expertise.

Liquefaction

Industry

The process of converting natural gas into liquid form (LNG) by cooling it to extreme temperatures for storage and transport. Subcontractors supporting liquefaction facilities must meet strict safety and technical certifications. Work scopes often include maintenance, insulation, and cryogenic system servicing.

Back-To-Back Well Program

Industry

A drilling schedule where wells are spaced consecutively with minimal downtime between completions. For subcontractors, it means sustained mobilisation of crews and equipment across multiple well sites. Expect extended contract durations but also compressed turnaround times between locations.

Carbonate Formation

Industry

A type of subsurface rock layer—primarily limestone or dolomite—that subcontractors may encounter during drilling, completions, or civil excavation work, often requiring specialised equipment, bit selections, or modified drilling programmes due to its hardness and tendency to cause lost circulation events.

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