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Industry Glossary Term

Strand Jack

A hydraulic lifting device that grips steel strand cables to raise or lower extremely heavy loads incrementally. Subcontractors use strand jacks for heavy lifts on modules, bridges, and offshore structures. They are often mobilised by specialised rigging crews under a separate lifting subcontract.

Related Terms

Interconnection Agreement

Industry

A contract governing how a facility or system connects to a larger network, such as a pipeline or power grid. For subcontractors, it defines technical requirements and responsibilities during tie-in work. Non-compliance can trigger delays, penalties, or scope disputes.

Shallow-Water

Industry

Offshore operating zones typically under 500 feet of water depth. For subcontractors, these sites use jack-up rigs and barges rather than deepwater vessels. Crew access, equipment requirements, and mobilisation costs differ significantly from deepwater scopes.

Onshore Acreage

Industry

Land-based areas leased or licensed by operators for exploration and production activities. For subcontractors, it defines where field work is scoped, mobilised, and contracted. Acreage size and location directly affect crew logistics, travel costs, and service demand.

Artificial Lift

Industry

A system used to boost production from oil wells that lack sufficient natural pressure to bring fluids to surface. Common methods include rod pumps, ESPs (Electric Submersible Pumps), and gas lift. Subcontractors are often mobilised to install, service, or troubleshoot these systems throughout a well's producing life.

Tank Battery

Industry

A group of storage tanks at a well site that collect and separate oil, gas, and water from production. Subcontractors are frequently mobilised here for gauging, maintenance, and fluid handling work. It is a common recurring service location on producing leases.

Drilling Spread

Industry

The complete package of equipment, personnel, and services required to drill a well, which determines the scope of work subcontractors are hired into — whether supplying a single service line or multiple integrated components across the operation.

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