- 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 valve installed at one or both ends of the kelly. When a high-pressure backflow occurs inside the drill stem, the valve is closed to keep pressure off the swivel and rotary hose.
Industry:Oil & gas
A steel member connected to each end of the shaft extending from each side of the speed reducer on a beam pumping unit.
Industry:Oil & gas
A rotating shaft to which connecting rods are attached. It changes up and down (reciprocating) motion to circular (rotary) motion.
Industry:Oil & gas
A device that fits inside the head and inside of which the kelly fits. The kelly driver rotates with the kelly.
Industry:Oil & gas
A heavy and relatively short length of pipe that fits in the drill stem between the kelly and the drill pipe. The threads of the drill pipe mate with those of the sub, minimising wear on the kelly.
Industry:Oil & gas
1. the workers on a drilling or workover rig, including the driller, the derrickhand, and the rotary helpers. 2. any group of oilfield service workers.
Industry:Oil & gas
A pneumatically operated device mounted on top of the kelly that, when actuated, causes the kelly to turn or spin.
Industry:Oil & gas
1. an undergauge channel or groove cut in the side of the borehole and parallel to the axis of the hole. A keyseat results from the rotation of pipe on a sharp bend in the hole. 2. a groove cut parallel to the axis in a shaft or a pulley bore.
Industry:Oil & gas
1. framework for supporting or containing a number of loose objects, such as pipe. See pipe rack. 2. a bar with teeth on one face for gearing with a pinion or worm gear. 3. a notched bar used as a ratchet.
Industry:Oil & gas
A wellbore that has been drilled in a direction other than vertical.
Industry:Oil & gas
