A pipeline or conduit installation technique that avoids open excavation, using methods like HDD (Horizontal Directional Drilling) or pipe bursting. Subcontractors use it to cross roads, waterways, or environmentally sensitive areas with minimal surface disruption. Specialised equipment and certifications are typically required, affecting crew composition and bid pricing.
Trenchless Method
Related Terms
Cook Inlet
IndustryA major oil and gas producing basin in southcentral Alaska with active offshore and onshore operations. Subcontractors working here face remote logistics, tidal extremes, and strict environmental regulations. Mobilisation costs and specialised marine requirements significantly affect bid pricing.
2c Resources
IndustryThe middle estimate of contingent petroleum resources that are discovered but not yet approved for development. For subcontractors, 2C resource announcements often signal future project opportunities that are not yet fully funded. Bid opportunities tied to 2C resources carry higher uncertainty and may shift significantly before contracts are awarded.
Pressure Pumping
IndustryA well stimulation service involving the high-pressure injection of fluids — such as fracturing fluid, cement, or acid — into a wellbore to improve production or complete the well; for subcontractors, it represents a specialised, equipment-intensive scope of work that typically requires certified operators, dedicated pump trucks, and close coordination with the primary operator on site.
Turnaround
IndustryA planned shutdown of a facility for maintenance, inspection, and repair. Turnarounds often require large numbers of contractors and subcontractors working intensive schedules.
Instrument Air Systems
IndustryCompressed air networks that power pneumatic valves, controls, and instrumentation on oil and gas and industrial sites. Subcontractors must ensure supplied air meets strict dryness and purity standards before connecting equipment. Contaminated or wet instrument air can damage sensitive controls and trigger costly shutdowns.
Spud Date
IndustryThe date when drilling begins on a new well. Marks the start of drilling operations.
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