دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

. See keyseat. key valve n: see shutoff valve.

n: a device on the deadline tiedown anchor used to secure the drilling line.

n: This schlumberger module provides direct measurements of wellbore fluid resistivity and temperature, also cable tension below the toolstring head. Useful to run in poor hole condition;should allow differentiation of differential sticking and keyseat stic

n: The vertical heigh from the drill floor to the floor of monkey board.

n: a jackup drilling unit in which the drilling rig is mounted on two cantilevers that extend outward from the barge hull of the unit. The cantilevers are supported only at the barge end. Com- pare keyway.

n: The tool used to tighten chain in order to cross under the lase chain slice and chain key.

a mechanical device used for holding or locking where segmented keys or fingers are pushed into a recess to hold, anchor or grasp the tool.

n: an arm keyed at right angles to a shaft and used for changing radius of rotation or changing reciprocating motion to circular motion or circular motion to reciprocating motion. On a beam pumping unit, the crank is connected by the pitman to the walking beam, thereby changing circular motion to reciprocating motion.

n: Refers to the working board extended at drill floor, monkey board and derrick crown and the winter proofing board installed around the derrick mask.