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IndustryGlossary Term

Dry Dock

A scheduled period when a marine vessel is removed from service for inspection, repairs, or maintenance. For subcontractors, dry dock signals a concentrated burst of work — hull cleaning, mechanical repairs, and compliance checks. Scope can be substantial, so resource planning and contract clarity are critical.

Related Terms

Abandonment

Industry

The regulated process of permanently closing a well or facility at end-of-life. Subcontractors are often hired for plugging, reclamation, and site cleanup scopes. Abandonment projects can be steady work but require strict compliance with provincial regulations.

Phase Gate

Industry

A formal approval checkpoint where a project must meet defined criteria before work advances to the next stage. Subcontractors often cannot mobilise, invoice, or begin new scope until the client clears each gate. Delays at phase gates directly impact crew scheduling and cash flow.

Secondary Stress

Industry

Indirect mechanical stress that develops in structures or piping due to thermal expansion, settlement, or equipment movement. Unlike primary stress, it isn't caused by direct applied loads. Subcontractors must account for it during installation and inspection to avoid material fatigue and warranty disputes.

Frac Flowback

Industry

The phase after hydraulic fracturing when water, sand, and hydrocarbons flow back to surface from the wellbore. Subcontractors are often mobilised quickly to manage fluid handling, testing, and disposal. Flowback work can be short-duration but requires crews and equipment on standby.

Trenchless

Industry

A method of installing or repairing underground pipelines and conduits without open excavation. Techniques include horizontal directional drilling (HDD) and pipe bursting. Subcontractors working trenchless scopes need specialised equipment and certified operators.

Rig Release

Industry

The formal point when a drilling rig is demobilised and the operator ends the rig contract. For subcontractors, it signals the close of associated scopes of work and triggers final invoicing. Crew demob, equipment retrieval, and close-out documentation should begin immediately.

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