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IndustryGlossary Term

Clear-To-Build

A formal go-ahead issued by a prime contractor or owner confirming all approvals, permits, and engineering are in place. Subcontractors should not mobilise crews or materials until this authorisation is received. Starting work without it can void contract protections and leave you liable for costs.

Related Terms

WCS (Western Canadian Select)

Industry

WCS is the benchmark price for Alberta heavy oil blends sold at Hardisty, Alberta. When WCS prices drop, upstream operators cut budgets, directly reducing subcontractor work volumes and day rates. Monitoring WCS helps field service companies anticipate slowdowns and plan workforce levels accordingly.

Midstream Infrastructure

Industry

The pipelines, compressor stations, and processing facilities that move and condition product between the wellhead and end markets. For subcontractors, it represents a major source of maintenance, construction, and inspection work. Contracts here often involve long project timelines and strict regulatory oversight.

Crawler Crane

Industry

A large lifting crane mounted on tracked undercarriage, used for heavy lifts on unstable or soft ground at oil and gas and construction sites. Subcontractors often source these through specialised rigging firms on a day-rate or project basis. Confirm ground-bearing capacity and operator certifications before mobilising.

High-Impact Well

Industry

A well with significant technical complexity, cost, or strategic value to the operator. For subcontractors, these projects typically involve stricter oversight, specialised equipment, and higher performance expectations. Mobilisation windows and crew qualifications are often scrutinised more closely.

TD (Total Depth)

Industry

The maximum depth reached by a drilling rig during well construction, measured from the surface to the bottom of the wellbore. For subcontractors, TD determines project scope, equipment requirements, and billing milestones as it marks the completion of the drilling phase.

Spring Break-Up

Industry

The seasonal period when melting snow and frost causes ground conditions to soften, restricting heavy equipment access to remote sites. Municipalities impose road bans limiting load weights, delaying material hauls and crew mobilisation. Subcontractors should plan for project slowdowns and reduced billable hours during this window.

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