20 October 2021

Outer Continental Shelf (OCS)

All submerged lands lying seaward and outside of the area of lands beneath navigable waters as defined in section 2 of the Submerged Lands Act (43 […]
18 July 2017

Output horsepower

The power that is put out by a unit, operating system, or piece of equipment.
18 July 2017

Overshot

A fishing tool that is attached to tubing or drill pipe and lowered over the outside wall of pipe or sucker rods lost or stuck in […]
18 July 2017

Pay sand

The producing formation, often one that is not even sandstone. It is also called pay, pay zone, and producing zone.
18 July 2017

Perforate

To pierce the casing wall and cement of a wellbore to provide holes through which formation fluids may enter or to provide holes in the casing […]
18 July 2017

Perforating gun

A device fitted with shaped charges or bullets that is lowered to the desired depth in a well and fired to create penetrating holes in casing, […]
18 July 2017

Permeability

1) a measure of the ease with which a fluid flows through the connecting pore spaces of rock or cement. The unit of measurement is the […]
18 July 2017

Petroleum

Oil or gas obtained from the rocks of the earth. See hydrocarbons.
18 July 2017

Pin

The male section of a tool joint. See tool joint.
18 July 2017

Pipe handling boom

An arm-based machine that usually transitions drill pipe from the horizontal to the vertical position in a single motion. It is usually rotated around a fixed […]
18 July 2017

Pipe ram

A sealing component for a blowout preventer that closes the annular space between the pipe and the blowout preventer or wellhead. See annular space and blowout […]