- 産業: Education; Oil & gas
- Number of terms: 4495
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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.
Generally, the first string of casing in a well. It may be lowered into a hole drilled into the formations near the surface and cemented in place; it may be driven into the ground by a special pile driver (in such cases, it is sometimes called drive pipe). Its purpose is to prevent the soft formations near the surface from caving in and to conduct drilling mud from the bottom of the hole to the surface when drilling starts. Also called conductor pipe, drive pipe.
Industry:Oil & gas
A sucker rod string, that is, the entire length of sucker rods, which usually consists of several single rods screwed together. The rod string serves as a mechanical link from the beam pumping unit on the surface to the sucker rod pump near the bottom of the well.
Industry:Oil & gas
The largest diameter casing and the topmost length of casing. It is relatively short and encases the topmost string of casing.
Industry:Oil & gas
1. a short, heavy, cylindrical section of steel filled with concrete and rounded at the bottom, which is placed at the end of the casing string. It prevents the casing from snagging on irregularities in the borehole as it is lowered.
Industry:Oil & gas
A conical-shaped metal device into which cutting teeth are formed or mounted on a roller cone bit.
Industry:Oil & gas
1. a section of pipe or fitting used to join pipe to pipe or to a vessel. 2. a place in electrical circuits where wires join. 3. the action of adding a joint of pipe to the drill stem as drilling progresses.
Industry:Oil & gas
A type of chain that is used to transmit power by fitting over sprockets attached to shafts, causing rotation of one shaft by the rotation of another. Transmission roller chain consists of offset links, pin links, and roller links.
Industry:Oil & gas
