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.
Trenchless
Related Terms
STACK (Sooner Trend Anadarko Basin Canadian and Kingfisher)
IndustryA prolific multi-zone oil and gas play in central Oklahoma covering Canadian and Kingfisher counties. Subcontractors active here support high-density horizontal drilling and completions work. Mobilisation demand can spike quickly, so maintaining local crew and equipment availability is critical.
Equity Partnership (first Nations)
IndustryAn ownership arrangement where a First Nations group holds a financial stake in a project or company. Subcontractors may be required to include an equity partner to win work on certain corridors or project areas. This affects bidding structure, profit-sharing, and how contracts are awarded.
PAUT (Phased Array Ultrasonic Testing)
IndustryAn advanced non-destructive testing method that uses multiple ultrasonic beams to inspect welds, pipelines, and structural components for defects. It produces detailed cross-sectional images without cutting or damaging the material. Subcontractors offering PAUT services typically require certified Level II or III technicians and specialised portable equipment.
M&A (Mergers and Acquisitions)
IndustryWhen two companies combine or one buys another, reshuffling vendor lists and contract structures. Subcontractors may face renegotiated rates, new prequalification requirements, or lost preferred-supplier status. Monitor client M&A activity closely — approved contractor rosters often get cut during integration.
Cleanout
IndustryA service job focused on removing debris, scale, or obstructions from a wellbore, tank, or pipeline. Subcontractors are often mobilised on short notice to perform cleanouts between production phases. Accurate job scoping is critical, as unforeseen material volumes can affect your quoted price.
Frac Flowback
IndustryThe 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.
Latest Industry News
Trenchless Liner Restores Century-Old Water Main in Hazleton, PA
The Hazleton City Water Authority used Primus Line FFRP technology to rehabilitate a 1915 cast iron transmission main, avoiding open-cut excavation through protected wetlands. Trenchless Technology reports the project cut installation time from months to about one week.
1 month agoIndustryUtility Locating Terms Trenchless Subs Need to Know Before Breaking Ground
Trenchless Technology breaks down key utility locating concepts, including the critical difference between public and private utilities, that every small-diameter contractor should understand before starting work.
2 months agoRevenueTrenchless Relining Doubles Lifespan of Don Pedro Dam's Aging Penstock
Trenchless Technology details how F.D. Thomas relined a 1,300-ft steel penstock at California's Don Pedro Dam, offering a rehab playbook for water and hydropower subcontractors facing similar legacy infrastructure.
1 month agoIndustryAzuria Buys CIPP Division of Nor-Cal Pipeline Services
Azuria Water Solutions has acquired the cured-in-place pipe operations, assets and personnel of Nor-Cal Pipeline Services, expanding its West Coast trenchless rehabilitation footprint.
20 hours 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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