دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: It is connected above the packer of DST tool, which is used to protect the tubular subs which are installed with bourdon tube.

n: a sub run below a dual or triple packer to permit the correct space-out. See space-out.

n: a packer designed for sitting on a pipe that rests on bottom, such as a tail pipe or liner. See packer:

n: See below packer bourdon tube case.

Injection of fluids down the annulus or “backside”. Common as a gas supply path for gas lift. Also used in some fracturing operations, to spot fluids downhole when no packer is used or a type of injection valve is in the tubing to allow entry of chemicals

n: A large BOP (q.v.) valve that forms a seal in the annular space between the wellbore and the drill pipe. It is usually installed above the ram type preventers in the BOP stack.

a elastomer bag or donut type seal, pushed into contact with the pipe or tools in the blow out preventer (BOP). It is designed to seal around pipe or any other irregular surface tool (packers, guns, pumps, etc.) that may be in the BOP. May also be called

n: See above packer bourdon tube case.

n: a mechanism in packers and other tools in which straight pickup or setdown action will set or release the tool. Rotation is not needed to set or release a tool with an automatic J.

the annulus above the packer.