- 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.
the pressure generated by the mud pumps and exerted on the drill stem.
Industry:Oil & gas
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
the movement of drilling fluid out of the mud pits, down the drill stem, up the annulus, and back to the mud pits. See normal circulation, reverse circulation.
Industry:Oil & gas
a clamp placed tightly around a drill collar that is suspended in the rotary table by drill collar slips.
Industry:Oil & gas
an accessory employed above a packer, to permit annulus-to-tubing circulation or vice versa.
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
an accessory to a fishing tool, placed above it. If the tool cannot be disengaged from the fish, the safety joint permits easy disengagement of the string of pipe above the safety joint. Thus, part of the safety joint and the tool attached to the fish remain in the hole and become part of the fish.
Industry:Oil & gas
