- 업종: 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.
When casing is being cemented in a borehole, the cement slurry can fail to rise uniformly between the casing and the borehole wall, leaving spaces, or channels, devoid of cement. Ideally, the cement should completely and uniformly surround the casing and form a strong bond to the borehole wall. See cement channeling.
Industry:Oil & gas
Resistance to movement created when two surfaces are in contact. When friction is present, movement between the surfaces produces heat.
Industry:Oil & gas
The procedure of adding a length of drill pipe or tubing to the active string.
Industry:Oil & gas
After the initial completion of a well, the action and techniques of reentering the well and redoing or repairing the original completion to restore the well’s productivity.
Industry:Oil & gas
A method of severing pipe in a well by applying high pressure jets of a very corrosive substance against the wall of the pipe. The resulting cut is very smooth.
Industry:Oil & gas
The gear or chain arrangement by which power is transmitted from the prime mover to the drawworks, the mud pump, or the rotary table of a drilling rig.
Industry:Oil & gas
A fishing tool that uses high-pressure jets of chemicals to sever casing, tubing, or drill pipe stuck in the hole.
Industry:Oil & gas
The liquid circulated through the wellbore during rotary drilling and workover operations.
Industry:Oil & gas
A method of improved oil recovery in which chemicals dissolved in water are pumped into a reservoir through injection wells to mobilise oil left behind after primary or secondary recovery and to move it toward production wells.
Industry:Oil & gas
A wellbore drilled with a full-gauge bit. Also called a true-to-gauge hole.
Industry:Oil & gas
