دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the hydraulic powered chain driven unit that snubs or strips coiled tubing into or out of a well.

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.

n: the assembly mounted on a coiled tubing injector head that guides the tubing string as it passes through an arc from the reel into a vertical alignment with the injector-head chains and wellbore. The radius of the guide arch is generally designed to be as

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

coiled tubing handling device that provides pulling and injection power. Usually powered by two to four motors that transmit the forces to the coil through chains equipped with specially shaped couplers.