دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see flex joint.

n: a device that provides a flexible connection between the riser pipe and the subsea blowout preventers. By accommodating lateral movement of a mobile offshore drilling rig, flex joints help to prevent a build up of abnormal bending load pressure.

n: a deflection tool, placed above the drill bit in the drill stem. with a ball and socket arrangement that allows the tool to be deflected at an angle;used in directional drilling. It is useful in fishing operations because it allows the fishing tool to be deflected to the side of the hole, where a fish may have come to rest.

n: deflecting tool, it is also used in the fishing .

a flex joint in a tool string that allows alignment with a target not in the same plane.

n: an acoustic electronic device used to monitor the angle of the flex joint on a floating offshore drilling rig. A small angle should usually be maintained on the flex joint to minimize drill pipe fatigue and wear and damage to the blowout preventers and to maximize the ease with which tools may be run. Also called azimuth angle indicator.