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Drilling

Of or relating to the penetration of the Earth's surface in order to extract petroleum oil.

Industry: Oil & gas

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Drilling

coming out of hole

Oil & gas; Drilling

The withdrawing of the drill string from the well bore.

sealant polyme

Oil & gas; Drilling

A polymer added to drilling mud in order to make a porous formation impermeable.

jet bit

Oil & gas; Drilling

A modified drill bit utilizing a hydraulic jet to increase the drilling rate.

double

Oil & gas; Drilling

Two sections of drill pipe, casing or tubing joined together.

draw-down

Oil & gas; Drilling

The differences between the static and the flowing bottom-hole pressures in a well.

oritice

Oil & gas; Drilling

A device to restrict partially the flow through a pipe, the difference in pressure on the two sides of the orifice plate can be used to measure the flow rate through the pipe.

marine riser

Oil & gas; Drilling

The pipe which connects an exploration rig, drilling platform or production platform to a sub-sea wellhead or sub-sea pipeline during drilling or production operations.

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