- Industry: Education; Oil & gas
- Number of terms: 4495
- Number of blossaries: 0
- Company Profile:
The Petroleum Extension Service (PETEX) is a unit of the Division of Continuing Education at The University of Texas at Austin and has been training companies and individuals since 1944.
A mixture of hydrochloric and/or hydrofluoric acids and surfactants used to remove wall cake from the wellbore.
Industry:Oil & gas
A device with an orifice installed in a line to restrict the flow of fluids. Surface chokes are part of the Christmas tree on a well and contain a choke nipple, or bean, with a small-diameter bore that serves to restrict the flow. Chokes are also used to control the rate of flow of the drilling mud out of the hole when the well is closed in with the blowout preventer and a kick is being circulated out of the hole. See choke manifold.
Industry:Oil & gas
The sheath of mud solids that forms on the wall of the hole when liquid from mud philtres into the formation. Also called philtre cake or wall cake.
Industry:Oil & gas
To string a wire rope drilling line through the sheaves of the travelling and crown blocks to the hoisting drum.
Industry:Oil & gas
An arrangement of pulleys, or sheaves, through which drilling cable is reeved, which moves up or down in the derrick or mast.
Industry:Oil & gas
A line, or pipe, that runs from the blowout preventer stack to the choke manifold through which fluid from the hole is flowed when the well is shut in with the blowout preventer.
Industry:Oil & gas
A type of radioactivity well log that records natural radioactivity around the wellbore. Shales generally produce higher levels of gamma radiation and can be detected and studied with the gamma ray tool. See radioactivity well logging.
Industry:Oil & gas
A device that uses centrifugal force to separate small solid components from liquid drilling fluid.
Industry:Oil & gas
One of the two valves in a sucker rod pumping system. It moves with the movement of the sucker rod string. On the upstroke, the ball member of the valve is seated, supporting the fluid load. On the downstroke, the ball is unseated, allowing fluid to enter into the production column. Compare standing valve.
Industry:Oil & gas
The arrangement of piping and special valves, called chokes, through which drilling mud is circulated when the blowout preventers are closed to control the pressures encountered during a kick.
Industry:Oil & gas
