A method where multiple wells are drilled from a single surface location, or pad. For subcontractors, this means sustained, back-to-back work cycles with minimal rig-up and tear-down time. Efficient mobilisation and crew scheduling are critical to maintaining productivity across the pad.
Pad Drilling
Related Terms
Catenary
IndustryThe natural curve a hanging cable, chain, or pipe forms under its own weight between two anchor points. In field work, this shape is critical for pipeline spanning, rigging, and subsea riser installations. Subcontractors must account for catenary loads when planning lifts or laying flexible lines.
High-Temperature Creep
IndustryThe slow, permanent deformation of metal components under sustained stress at elevated temperatures. Subcontractors must watch for creep in pressure vessels, piping, and structural welds during high-heat operations. Missed signs can lead to equipment failure, costly shutdowns, and liability exposure.
Cavern Infrastructure
IndustryUnderground storage facilities, typically salt caverns, used to store hydrocarbons like natural gas or crude oil. Subcontractors may be engaged for cavern construction, well drilling, piping, and surface facility work. Projects often involve specialised equipment and compressed timelines tied to storage demand cycles.
COR (Certificate of Recognition)
IndustryA voluntary safety certification program in Canada that recognizes employers who have developed health and safety management systems that meet established standards. Required by many operators in Alberta and Western Canada.
BPD (Barrels Per Day)
IndustryA measure of a well's or facility's daily oil output. Higher BPD typically means greater activity levels, more crews on site, and increased service demand. Subcontractors often see scope and call-out frequency tied directly to a client's BPD targets.
FFS (Fitness-for-service)
IndustryA structured engineering assessment that determines whether ageing or damaged equipment is safe to keep operating. Subcontractors are often hired to collect inspection data, run integrity tests, or execute repairs recommended by FFS evaluations. Understanding FFS scope helps field crews prioritise work orders and meet client fitness thresholds before returning assets to service.
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