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Industry Glossary Term

Electrohydraulic (eh) Control System

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.

Related Terms

Energy Transition

Industry

The global shift from fossil fuels toward renewables, hydrogen, and lower-emission energy sources. For subcontractors, it means new project types, updated certification requirements, and evolving client scopes. Diversifying skills into solar, wind, or carbon capture work helps firms stay competitive.

Mid-Continent

Industry

A regional designation covering oil and gas producing areas across Oklahoma, Kansas, and parts of surrounding states. For subcontractors, it signals a distinct labour market, regulatory environment, and client base. Mobilisation costs and crew logistics differ significantly from other North American basins.

PMC (Project Management Contractor)

Industry

A PMC is the company hired by an owner to oversee and manage an entire project on their behalf. As a subcontractor, the PMC is typically your primary point of contact for approvals, invoicing, and scope direction. They control schedule and budget, so understanding their reporting requirements is essential for getting paid on time.

Spoil Pile

Industry

Excavated soil, rock, or debris removed during trenching or grading and stockpiled on-site. Subcontractors are often responsible for its placement, management, and disposal per site plans. Improper handling can trigger environmental compliance issues and project delays.

Resource Delineation

Industry

The process of defining the boundaries and quantity of an oil, gas, or mineral deposit through appraisal drilling and testing. For subcontractors, it signals a sustained work programme requiring crew, equipment, and logistical planning. Delineation phases often drive multi-month contracts for drilling, completions, and field services.

Production Drilling

Industry

Drilling performed on a proven reservoir to extract hydrocarbons commercially, as opposed to exploration work. For subcontractors, it typically means longer campaigns with more predictable scopes. Expect repetitive well programmes and stronger potential for extended service agreements.

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