- Industria: 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 long, cylindrical container fitted with a valve at its lower end, used to remove water, sand, mud, drilling cuttings, or oil from a well in cable-tool drilling.
Industry:Oil & gas
The process by which material (such as rock or soil) is worn away or removed (as by wind or water).
Industry:Oil & gas
A saturated aliphatic hydrocarbon having the formula CnH2n+2 (for example, methane, CH4; ethane, C2H6). Heavier paraffin hydrocarbons (for example, C18H38) form a waxlike substance that is called paraffin. These heavier paraffins often accumulate on the walls of tubing and other production equipment, restricting or stopping the flow of the desirable lighter paraffins.
Industry:Oil & gas
A device used to restrict fluid flow to one direction. It consists of a polished sphere, or ball, usually of metal, and an annular piece, the seat, ground and polished to form a seal with the surface of the ball. Gravitational force or the force of a spring holds the ball against the seat. Flow in the direction of the force is prevented, while flow in the opposite direction overcomes the force and unseats the ball.
Industry:Oil & gas
A tube with guides around it to keep it centred in the hole, and a cylindrical piece with blades attached. Spaces between the blades allow drilling fluid to pass through and carry away the scrapings.
Industry:Oil & gas
In a multiple completion, the arrangement of a separate tubing string for each zone produced, with all zones isolated by packers.
Industry:Oil & gas
The shift of duty on a drilling rig that generally starts in the afternoon and runs through the evening. Sometimes called afternoon tour. Compare daylight tour.
Industry:Oil & gas
Sucker rods that have been broken and separated in a pumping well because of corrosion, improper loading, damaged rods, and so forth.
Industry:Oil & gas
Barium sulfate, BaSO4; a mineral frequently used to increase the weight or density of drilling mud. Its relative density is 4.2 (meaning that it is 4.2 times denser than water). See barium sulfate, mud.
Industry:Oil & gas
A chemical compound of barium, sulfur, and oxygen (BaSO4), which may form a tenacious scale that is very difficult to remove. Also called barite.
Industry:Oil & gas
