دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a continuous string of flexible steel tubing, often hundreds or thousands of feet long, that is wound onto a reel, often dozens of feet in diameter. The reel is an integral part of the coiled tubing unit, which consists of several devices that ensure the tubing can be safely and efficiently inserted into the well from the surface. Because tubing can be lowered into a well without having to make up joints of tubing, running coiled tubing into the well is faster and less expensive than running conventional tubing. Rapid advances in the use of coiled tubing make it a popular way in which to run tubing into and out of a well. Also called reeled tubing.

n: (1)A long, continuous length of pipe wound on a spool. The pipe is straightened prior to pushing into a wellbore, and is recoiled to spool the pipe back onto the transport and storage spool. (2)A generic term relating to the use of a coiled tubing techniq

a continuous reeled tube from 1” diameter to >3.5” diameter. The tubing is injected into a well via a coiled tubing unit (CTU) and can be used to unload wells with liquid, foams or gasses, logging, fracturing, etc.

n: The package of equipment required to run a coiled tubing operation. Four basic components are required: the coiled tubing reel to store and transport the coiled tubing string, the injector head to provide the tractive effort to run and retrieve the coiled

the CT, reel, injector head, power pack, control unit and pressure control equipment used in a coiled tubing job.

n: the equipment for transporting and using coiled tubing, including a reel for the coiled tubing, an injector head to push the tubing down the well, a wellhead blowout preventer stack, a power source (usually a diesel engine and hydraulic pumps),and a control console. A unique feature of the unit is that it allows continuous circulation while it is being lowered into the hole. A coiled tubing unit is usually mounted on a trailer or skid.

coiled tubing unit.

electric line coiled tubing unit.

n: a control head for injecting coiled tubing into a well that seals off the tubing and makes a pressure-tight connection.

n: one of the pricipal equipment conponents of a coiled tubing unit. The injector head incorporates special profiled chain assemibies to grip the coiled tubing string,and uses a hydraulic drive system that tractive effort for running and retrieving the strin

without a drilling or workover rig (may involve a wireline unit, snubbing unit, or coiled tubing unit).