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IndustryGlossary Term

Extended-Reach Completions

Completion work performed on wells drilled at extreme horizontal distances from the surface location, sometimes exceeding 3,000 metres laterally. Subcontractors face longer tool-run times, specialised equipment requirements, and increased logistics complexity. Mobilisation planning and crew scheduling must account for extended job durations compared to conventional completions.

Related Terms

Prefabrication

Industry

The assembly of piping, structural, or mechanical components in a controlled shop environment before site installation. Subcontractors often bid prefab scope separately from field installation work. It can reduce on-site labour hours and shorten project schedules.

Electrohydraulic (eh) Control System

Industry

A control system combining electrical signals and hydraulic power to operate valves, actuators, and process equipment. Subcontractors working on commissioning or maintenance must be qualified to work on both electrical and hydraulic components. Specialised certification and intrinsically safe tools are typically required on-site.

VRU (Vapour Recovery Unit)

Industry

A compression system that captures hydrocarbon vapours from storage tanks or production equipment instead of venting them. Subcontractors are often hired to install, maintain, or service VRUs to meet emissions regulations. Familiarity with VRU work is increasingly required on oil and gas production sites.

SCADA (Supervisory Control and Data Acquisition)

Industry

A control system that monitors and manages field equipment like pipelines, compressors, and wellheads in real time. Subcontractors working on SCADA-connected sites must follow strict access and cybersecurity protocols. Your work may trigger automated alarms or shutdowns if procedures aren't followed precisely.

Sand Management

Industry

The process of controlling, monitoring, and removing sand produced alongside oil and gas to protect wellbore equipment and surface facilities. Subcontractors may be hired to install sand screens, separators, or erosion monitoring systems. Poor sand management accelerates equipment wear and increases maintenance callouts.

PWHT (Post-weld Heat Treatment)

Industry

A controlled heating and cooling process applied to welds after completion to reduce stress and improve strength. Subcontractors must confirm PWHT requirements before mobilising, as it adds time, equipment, and certified personnel to scope. Failing to price it into your bid can significantly erode job margins.

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