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Oil & gas

Terms concerning oil and gas as a fossil fuel and natural resource.

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Oil & gas > Drilling

vee-door

Oil & gas; Drilling

The upside down V-shaped opening in one side of the derrick that enables long pipes and tools to be lifted into the interior of the derrick. This opening is aligned with the slide ...

underground blowout

Oil & gas; Drilling

The uncontrolled flow of reservoir fluids from one reservoir into the wellbore, along the wellbore, and into another reservoir. This crossflow from one zone to another can occur ...

openhole

Oil & gas; Drilling

The uncased portion of a well. All wells, at least when first drilled, have openhole sections that the well planner must contend with. Prior to running casing, the well planner ...

pumping time

Oil & gas; Drilling

The total time required for pumping the cement slurry into the well, plus a safety factor. Pumping time can also be the time required to reach a consistency deemed to be ...

lag time

Oil & gas; Drilling

The time taken for cuttings to reach the surface. The term is also used in place of cycle time.

bit

Oil & gas; Drilling

The tool used to crush or cut rock. Everything on a drilling rig directly or indirectly assists the bit in crushing or cutting the rock. The bit is on the bottom of the ...

hook load

Oil & gas; Drilling

The total force pulling down on the hook. This total force includes the weight of the drillstring in air, the drill collars and any ancillary equipment, reduced by any force that ...