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Industry Glossary Term

Back-To-Back Well Program

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.

Related Terms

Gas Processing

Industry

The treatment of raw natural gas to remove impurities and separate saleable products like propane and condensate. Processing plants are major work sites for subcontractors providing maintenance, instrumentation, and turnaround services. Scopes can be large and ongoing, making them reliable sources of repeat field work.

Mobilization/Demobilization

Industry

The process of moving equipment and personnel to a job site (mobilization) and returning them afterward (demobilization). Often billed as separate line items.

HRSG (Heat Recovery Steam Generator)

Industry

A large boiler unit that captures exhaust heat from gas turbines to produce steam for power generation. Subcontractors are commonly engaged for HRSG installation, maintenance, and inspection scopes. Work typically requires certified welders, boilermakers, and compliance with pressure vessel regulations.

Heavy Civil

Industry

Large-scale infrastructure construction involving earthworks, bridges, roads, and foundations. Subcontractors in this sector typically supply specialised equipment, civil crews, or concrete services. Contracts are often high-value but require significant bonding and insurance capacity.

Spot Work

Industry

Short-term, unplanned jobs awarded without a long-term contract, typically filled on short notice. Subcontractors are engaged for a single scope or site visit at a negotiated day rate. Common in shutdown, turnaround, and emergency maintenance situations.

Mmcf/d (million Cubic Feet Per Day)

Industry

A measurement of natural gas production or flow volume, used to describe the output capacity of a well, pipeline, or facility. Subcontractors use this figure to gauge job scale, equipment sizing, and crew requirements. Higher MMcf/d ratings typically signal larger scopes of work and longer contract durations.

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