Walkover System

A specialised ship used to perform maintenance, repair, or remediation work on subsea wells and pipelines. Subcontractors are often mobilised to these vessels for ROV operations, well work, or equipment installation. Scheduling and access are tightly controlled by the operator.

A durable, corrosion-resistant plastic used for pipes, containment liners, and fluid transfer systems on job sites. Subcontractors commonly install or tie into HDPE pipelines in water, gas distribution, and environmental remediation scopes. Its lightweight nature reduces handling costs but requires certified fusion welding for pressure-rated connections.

Fixed magnets that retain their magnetic field without external power, used in motors, sensors, and lifting equipment on job sites. Subcontractors handling this equipment must follow strict handling and storage protocols to prevent injury or tool damage. They are common in downhole tools, generators, and magnetic lifting devices.

A trade discipline covering the installation, maintenance, and commissioning of electrical systems and process instrumentation on industrial sites. Subcontractors in this scope typically hold specialised certifications and work across upstream, midstream, and construction projects. E&I scopes are commonly tendered separately from mechanical or civil work.

A project delivery model where one firm manages engineering, procurement, and construction on the owner's behalf. Subcontractors are hired directly by the owner, not the EPCM firm. Understanding this structure clarifies your contract chain, payment authority, and site reporting lines.

The process of routing and securing protective tubing or piping to house electrical wiring on job sites. Subcontractors are typically scoped for this work during facility builds, plant turnarounds, or infrastructure upgrades. Accurate material take-offs and labour estimates are critical to pricing this work profitably.

How Operator Mergers and Acquisitions Affect Your Subcontract Agreements

When operators merge, get acquired, or sell assets, subcontractor agreements are caught in the middle. Learn how M&A activity affects your MSA, payment terms, vendor status, and what to do before, during, and after a deal closes.

How Rig Count Trends Affect Subcontractor Demand and What to Do About It

Rig counts are the earliest signal of where field service work is heading. Learn how to read drilling activity trends, anticipate demand shifts, and position your crew before the phone stops ringing.

What Is an AFE in Oil and Gas and How Does It Affect Subcontractor Payments?

An AFE (Authorization for Expenditure) controls every dollar spent on an oilfield project. Learn how it affects your billing, change orders, and cash flow as a subcontractor.