The process of confirming that the work described in a contract matches actual field conditions before mobilising. Subcontractors use it to catch scope gaps that could lead to unpaid extras. Undocumented changes discovered on-site are easier to dispute without prior validation.
Scope Validation
Related Terms
Master Service Agreement (MSA)
IndustryA contract between an operator and a service company that establishes the general terms and conditions for all future work. Individual jobs are then executed under work orders or AFEs referencing the MSA.
Production Chemistries
IndustrySpecialty chemicals injected into wells and pipelines to control corrosion, scale, paraffin, and hydrates during oil and gas production. Subcontractors handle storage, injection system maintenance, and chemical dosing as part of production operations contracts. Proper handling certifications and spill containment protocols are typically required on-site.
Tank Farm
IndustryA designated site containing multiple large storage tanks for oil, gas, or chemicals. Subcontractors frequently perform inspection, maintenance, and cleaning work at these facilities. Access permits and confined space certifications are typically required on site.
Physical Oil Price
IndustryThe actual market price paid for real barrels of oil delivered at a specific location, as opposed to futures contract prices. For subcontractors, client budgets and contract award activity closely track physical oil prices. When physical prices drop, project deferrals and rate pressure often follow quickly.
DRA (Drag-reducing Agent)
IndustryA chemical additive injected into pipelines to reduce turbulence and increase flow rates without adding compression. Subcontractors handling pipeline operations or chemical injection work may be scoped to install, maintain, or monitor DRA injection skids. Understanding DRA systems helps crews execute chemical handling tasks safely and meet operator flow assurance targets.
Well Spacing
IndustryThe regulated distance between wellbores on a pad or lease area. Tighter spacing means more wells drilled closer together, increasing crew density and equipment demand. Subcontractors should anticipate compressed timelines and overlapping scopes when spacing is tight.
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