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IndustryGlossary Term

Steam Circulation

A process where steam is pumped through wellbore tubing to heat and mobilise heavy oil or bitumen. Subcontractors are often engaged for equipment operation, line connections, and monitoring during circulation cycles. Scope can expand quickly, so confirm change-order terms before mobilising.

Related Terms

Waterflood

Industry

A secondary recovery method where water is injected into a reservoir to push remaining oil toward producing wells. Subcontractors support waterflood projects through injection well services, pump maintenance, and water handling infrastructure. Work scope can be long-term, offering stable recurring contracts.

Construction Manager At Risk

Industry

A delivery model where a construction manager guarantees a maximum project cost and takes on financial risk if it's exceeded. Subcontractors are hired by the CM, not the owner, making the CM your direct client and contract holder. Your scope, payments, and change orders all flow through the CM.

Lateral (well)

Industry

The horizontal section of a directionally drilled well, extending sideways through the target formation. Laterals can stretch several kilometres, requiring extended crew mobilisations and staged service scopes. Subcontractors should clarify lateral length upfront, as it directly affects equipment needs and job duration.

Punching-Shear Failure

Industry

A structural failure where a concentrated load punches through a slab or foundation, creating a cone-shaped break. Subcontractors must watch for this risk when positioning heavy equipment on concrete pads or temporary platforms. Undetected, it can cause sudden equipment collapse and serious site liability.

Leader (drilling Rig)

Industry

A vertical guide structure on a pile-driving or drilling rig that keeps the drill string or pile aligned during penetration. Subcontractors working near this equipment must follow strict exclusion zone protocols. It is also called a mast or leads on some rigs.

Forward Operating Location

Industry

A temporary staging base positioned close to active work sites, used to store equipment, house crews, and coordinate field operations. Subcontractors often mobilise from an FOL rather than returning to a main facility daily. This reduces travel time and keeps personnel and resources on standby near the job.

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