دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: A kind of double core barrel drill. The top of inner barrel is hung by ball bearing. It is good for improvement of core recovery if inner barrel does not roll with outer barrel.

n: A component of rotary viscometer. Connected with inner barrel.

n: The whole set of coring tool consisted by outer barrel, inner barrel, safe joint, rotating bearing and core bit.

the core barrel composed by outer barrel and inner barrel and the drill fluid flow through the theannular space to the well bottom

n: the two-layer core barrel whose inner barrel and outer barrel are dead and turning at the same time

n: a kind of core barrel within of which there are a ball bearing, when bore with sampling
the inner barrel turning while the outer barrel not turning

n: the part of coring tool.

n: thev steel tube that protects the inner barrel, connects the bit and drilling volume and bears a part of drilling pressure.

n: see telescoping mast. telescoping joint n: a device used in the marine riser system of a mobile offshore drilling rig to compensate for the vertical motion of the rig caused by wind, waves, or weather. It consists of an inner barrel attached beneath the rig floor and an outer barrel attached to the riser pipe and is an integrated part of the riser system.

n: The derrick that can be setted upright by lifting tackle or hydraulic system.

n: The diameter of the core smaller than the inner barrel caused by the core be grinded .