18 July 2017

Preventer

Shortened form of blowout preventer. See Blowout Preventer.
18 July 2017

Primary cementing

The cementing operation that takes place immediately after the casing has been run into the hole. It provides a protective sheath around the casing, segregates the […]
18 July 2017

Prime mover

An internal-combustion engine or a turbine that is the source of power for driving a machine or machines.
18 July 2017

Production

1) the phase of the petroleum industry that deals with bringing the well fluids to the surface and separating them and with storing, gauging, and otherwise […]
18 July 2017

Propping agent

A granular substance (sand grains, aluminum pellets, or other material) that is carried in suspension by the fracturing fluid and that serves to keep the cracks […]
25 July 2017

Protection casing

A string of casing set to protect a section of the hole and to permit drilling to continue to a greater depth. Sometimes called “protection string” […]
18 July 2017

Pump

A device that increases the pressure on a fluid or raises it to a higher level. Various types of pumps include the bottomhole pump, centrifugal pump, […]
18 July 2017

Rate of penetration (ROP)

The rate at which the drill proceeds in the deepening of the wellbore. It is usually expressed in terms of ft per hour.