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IndustryGlossary Term

P3 (public-Private Partnership)

A project delivery model where government and private companies jointly fund and develop infrastructure like pipelines, roads, or facilities. Subcontractors often work under large prime contractors who hold long-term P3 concession agreements. Payment structures and scope changes can be complex, so review contract terms carefully before mobilising.

Related Terms

Full-Depth Reclamation

Industry

A road rehabilitation method where the full pavement structure is pulverised and mixed with the subgrade to create a stabilised base. Subcontractors use specialised reclaimers and stabilisers to complete the work in a single pass. It is common on oilfield lease roads and remote access routes requiring cost-effective repair.

Pilot Bore

Industry

A small-diameter initial hole drilled along a planned path before reaming to full size, commonly used in horizontal directional drilling. Subcontractors use it to verify alignment and ground conditions before committing to the full excavation scope.

Instrumentation

Industry

The installation, calibration, and maintenance of measurement and control devices such as gauges, transmitters, and sensors. Subcontractors are often scoped specifically for instrumentation work, requiring certified trades and precise documentation. It is a common standalone discipline on large oil and gas and industrial construction projects.

Mission Critical

Industry

Describes any task, system, or equipment whose failure would halt operations or create serious safety risks. For subcontractors, mission critical work often carries stricter response times, higher liability, and tighter documentation requirements.

PAC (Polyanionic Cellulose)

Industry

A water-soluble polymer additive used in drilling fluids to control fluid loss and stabilise boreholes. Subcontractors handling mud systems must store and mix PAC carefully, as improper use affects drilling performance. It is commonly specified in drilling programmes, so field crews should follow the mud engineer's exact dosage instructions.

Cctv (closed-Circuit Television) Inspection

Industry

A method of inspecting pipelines, conduits, or underground infrastructure using a camera mounted on a remote-controlled crawler. Subcontractors are often mobilised to conduct these surveys and deliver video footage with written condition reports. Findings directly affect scope changes, defect repair contracts, and downstream work orders.

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