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IndustryGlossary Term

Membrane Separation

A filtration process that uses semi-permeable membranes to separate gases or liquids by molecular size or pressure. Common in natural gas processing and produced water treatment on field sites. Subcontractors may install, inspect, or maintain membrane units as part of facility service scopes.

Related Terms

Multiple-Award Contract

Industry

A procurement arrangement where a client awards contracts to several qualified subcontractors simultaneously. Each awarded vendor is eligible to compete for individual task orders as work is released. It creates no guaranteed volume, so subcontractors must continue bidding to secure actual revenue.

BESS (Battery Energy Storage System)

Industry

A large-scale battery installation that stores and dispatches electrical power on remote or off-grid job sites. Subcontractors may be hired to install, commission, or maintain these units alongside diesel generators or solar arrays. Familiarity with high-voltage systems and OEM safety protocols is typically required.

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.

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.

DGR (Deep Geological Repository)

Industry

An underground facility built to permanently store nuclear or hazardous waste deep in stable rock formations. For subcontractors, DGR projects involve highly regulated excavation, tunnelling, and civil work with strict compliance requirements. Expect extensive worker certification, site access controls, and long project timelines.

JV (Joint Venture)

Industry

A formal business arrangement where two or more companies partner to pursue a specific project or contract, which can affect subcontractors by changing who issues purchase orders, approves invoices, or holds liability on site. Field service companies should confirm early which JV partner is the contracting entity to avoid payment delays or scope disputes.

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