دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a pipe fitting on which the external thread is larger than the internal thread to allow two pipes of different sizes to be connected.2. a removable lining or sleeve inserted or screwed into an opening to limit its size, resist wear or corrosion, or serve as a guide.

n: The coupler used to connect different size of pipes. One end is male thread and the other is female thread.

n: that which couples.

v: to join, connect with a coupling. coupling n: 1. in piping, a metal collar with internal threads used to join two sections of threaded pipe. 2. in power transmission, a connection extending longitudinally between a driving shaft and a driven shaft. Most such couplings are flexible and compensate for minor misalignment of the two shafts.

n: See double joint.

n: the rights of a husband to a life interest in all of his wifes inheritable lands. These rights come into effect on her death, provided the couple have children capable of inheriting. Effective in some states.

n: The minor diameter and flush coupled drill pipe used by diamond core drill.

n: seamless steel or aluminum pipe made up in the drill stem between the kelly or top drive on the surface and the drill collars on the bottom. During drilling, it is usually rotated while drilling fluid is circulated through it. Joints of pipe about 30 feet long are coupled together by means of tool joints.

n: A heavy seamless pipe uesd to rotate the bit and circulate the drilling fluid. Lengths of drill pipe 30 ft long are coupled together with tool joints to make the drill string.

a heavy wall tubing used for drilling.

n: A heavy seamless pipe uesd to rotate the bit and circulate the drilling fluid. Lengths of drill pipe 30 ft long are coupled together with tool joints to make the drill string.

n: a kind of joint with external thread on the lower end and the joint ledge located on the elevator , and used to lift the flush coupled casing

n pl: on conventional rotary rigs and top-drive rigs, hinged steel devices with manual operating handles that crew members latch on to a tool joint (or a sub). Since the elevators are directly connected to the traveling block, or to the integrated traveling block in the top drive, when the driller raises or lowers the block or the topdrive unit, the drill pipe is also raised or lowered.

the snap-around latches that couple around tubing below the pipe coupling and enables the traveling block on a rig to gab and lift the tubular string.