Work performed on-site without removing equipment or materials from their installed position. Subcontractors are often mobilised specifically for in-situ repairs, inspections, or testing. Scope and billing should clearly reflect the fixed work location.
In-Situ
Related Terms
Triple Drilling Rig
IndustryA large land rig capable of drilling deep wells, typically over 5,000 metres. It requires specialised subcontractors and larger crews than smaller single or double rigs. Expect higher equipment and certification requirements when bidding on triple rig projects.
Jackup
IndustryA mobile offshore drilling rig with retractable legs that jack down to the seabed, elevating the platform above water. Subcontractors mobilising to a jackup must account for offshore certification, marine logistics, and platform-specific access requirements.
Well Program
IndustryA technical document outlining the planned scope, procedures, and specifications for drilling or completing a well. Subcontractors use it to understand required services, equipment, and sequencing before mobilising. It directly affects how you scope work and price your bid.
Hydroblasting
IndustryHigh-pressure water jetting used to clean, strip, or cut surfaces on industrial equipment and structures. Subcontractors typically require specialised certification and equipment to bid this scope. It is common in tank cleaning, pipeline maintenance, and surface prep work.
Alternative Delivery Models
IndustryContracting arrangements beyond traditional lump-sum or day-rate structures, such as alliance, integrated project delivery, or performance-based contracts. These models shift how subcontractors are engaged, paid, and held accountable for outcomes. Understanding them helps field service firms assess risk, pricing strategy, and scope responsibilities before signing.
Secondary Stress
IndustryIndirect 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.
Latest Industry News
In-Situ Weld Repair on a 1964 CO₂ Absorber Shows What Aging Plant Work Looks Like
A detailed case study from Inspectioneering Journal covers the in-situ rehabilitation of circumferential weld seams on a 60-year-old CO₂ absorber, offering a practical look at the mechanical integrity work aging process equipment increasingly demands.
6 months agoIndustrySuncor Maps $13B Shift From Mining to In-Situ as Base Mine Winds Down
Suncor Energy outlined a $13 billion, decade-long expansion plan to replace depleting oil sands mining output with thermal in-situ production, targeting over 1 million bbl/day through 2040. Here's what it means for field service contractors in Alberta.
6 months agoIndustrySuncor's Lewis SAGD Project Signals Shift From Mining to In-Situ at Base Plant
Suncor plans to phase out mined bitumen at its Base Plant by 2036, replacing it with SAGD emulsion from the new Lewis lease, with early construction work targeted for 2027 and startup in 2032, Oil Sands Magazine reports.
1 month agoIndustryEnCore Wins Federal Approval to Build South Dakota's First ISR Uranium Mine
The Bureau of Land Management has authorized EnCore Energy's Dewey Burdock project in southwest South Dakota, clearing the way for construction of the state's first in-situ recovery uranium mine with a 28-year operating life.
4 months agoRelated Guides
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.
Industry GuideHow 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.
Industry GuideWhat 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.
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