A drilled or excavated hole through soil, rock, or existing structure. Subcontractors are often scoped to complete a specified number of bores per shift. Bore diameter and depth directly affect equipment selection and crew sizing.
Bore
Related Terms
Export Capacity
IndustryThe maximum volume of oil, gas, or product a facility can move off-site through pipelines, tankers, or terminals. For subcontractors, export capacity limits often dictate project pace and crew scheduling. Delays in export infrastructure can stall work and affect invoice milestones.
Call-Out (call-Out Activity)
IndustryA single, unplanned service request dispatched to a subcontractor or field technician outside of scheduled work. Each call-out is typically logged as a discrete billable event. Subcontractors often charge a flat call-out fee plus time and materials.
TOFD (Time-of-flight Diffraction)
IndustryAn ultrasonic weld inspection method used to detect and size internal flaws in pipelines and pressure vessels. Subcontractors performing NDT work must hold TOFD-specific certifications to qualify for this scope. It is widely accepted by regulators as an alternative to radiographic testing.
Quick Coupler
IndustryA mechanical fitting that connects hoses, pipes, or hydraulic lines without tools or threading. Common on wellsite and construction equipment, they allow fast swaps between attachments or fluid systems. Subcontractors should verify coupler compatibility before mobilising to avoid costly downtime.
Mobilization/Demobilization
IndustryThe process of moving equipment and personnel to a job site (mobilization) and returning them afterward (demobilization). Often billed as separate line items.
Storage Injection
IndustryThe process of pumping natural gas into underground storage facilities during periods of low demand. For subcontractors, it signals increased compression, pipeline, and maintenance work tied to seasonal injection cycles. Crews should expect elevated activity from spring through early fall.
Latest Industry News
HDD Tooling Selection: How to Avoid the Mistakes That Sink a Bore Before Pullback
Trenchless Technology breaks down the three phases of HDD tooling selection, and why a mismatch between tool and ground conditions can turn a routine bore into a costly failure.
1 month agoIndustryThyssen Mining Claims World Record Raise Bore at BHP's Jansen Potash Mine
Thyssen Mining and TRL Mining Construction LP completed twin 8-metre diameter raise bore excavations at BHP's Jansen potash mine in Saskatchewan, claiming a world record and saving 64 days on schedule.
2 months agoIndustryFluid Design Adjustment Rescues 4,400-Foot HDD Waterline Bore
When unexpected unconsolidated sand destabilized a long municipal HDD installation, a mid-job drilling fluid redesign made the difference between project success and failure. Here's what happened and what it means for your next long-bore bid.
2 months agoIndustryWhy Clay Inhibition Should Be Planned Before the Bore Starts, Not After Torque Spikes
HDD crews drilling through reactive clay formations can avoid torque spikes, mud rings, and lost-tool risk by building clay inhibition into the fluid program from the start, not as a mid-bore rescue measure.
3 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.
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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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