TVD (True Vertical Depth)

Temporary modular panels laid over pipelines, cables, or trenches to allow vehicle and equipment traffic across a work site. Subcontractors are often responsible for installation, load-rating compliance, and removal. Costs are typically billable as a mobilisation or site-prep line item.

The process of improving drilling speed, efficiency, and cost performance on a well. Subcontractors may be asked to adjust crew rotations, equipment deployment, or service timing to support optimisation targets. Faster drilling cycles can shorten contract durations, affecting your crew planning and invoicing schedules.

A narrow, deep excavator attachment used to dig trenches for pipelines, conduit, or utilities. Subcontractors specify bucket width based on pipe diameter and burial depth requirements. Having the correct size on-site avoids costly equipment swaps and project delays.

A timeline that outlines when specific tools, equipment, or crews are deployed downhole or on-site during an operation, dictating when a subcontractor's services are required and for how long. For field service companies, the run schedule directly determines mobilisation timing, crew rotations, and invoiceable hours on location.

Refers to offshore oil and gas operations conducted in water depths exceeding 300 metres, where subcontractors and field service crews must hold specialised certifications, work within stricter regulatory frameworks, and often face extended mobilisation timelines and higher equipment day-rates.

An advanced non-destructive testing method that uses multiple ultrasonic beams to inspect welds and materials for defects. It replaces traditional radiography on many pipeline and pressure vessel jobs. Subcontractors offering PAUT services often command higher rates and qualify for more specialised scopes.

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.