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In the oil and gas industry, coiled tubing refers to a long metal pipe, normally 1 to 3.25 in (25 to 83 mm) in diameter which is supplied spooled on a large reel. It is used for interventions in oil and gas wells and sometimes as production tubing in depleted gas wells. Coiled tubing is often used to carry out operations similar to wirelining ...
A Rail King rail car mover. The company manufactures oilfield equipment that includes truck, trailer, and skid mounted fracturing blenders and pumpers and units for chemical additive, cementing, coiled tubing, nitrogen pumping, controls, and power generation equipment; land-based drilling, workover, and well servicing rigs; and Rail King railcar movers. [4]
Coiled Tubing Drilling (CTD) is a drilling method that combines coiled tubing and directional drilling. [ 1 ] [ 2 ] It uses a mud motor to create a system for reservoirs. [ 3 ] [ 4 ]
In July 2006, it acquired the coiled-tubing unit of Weatherford International. [5] In December 2006, it acquired the wireline and well-service division of KCA DEUTAG. [6] In July 2008, the company was acquired by Aker Solutions for $198 million and was renamed Aker Qserv. [7] [8] [1]
Coiled tubing is used when it is desired to pump chemicals directly to the bottom of the well, such as in a circulating operation or a chemical wash. It can also be used for tasks normally done by wireline if the deviation [ clarification needed ] in the well is too severe for gravity to lower the toolstring and circumstances prevent the use of ...
NOV Inc., formerly National Oilwell Varco, is an American multinational corporation based in Houston, Texas.It is a worldwide provider of equipment and components used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry.
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They encapsulate multiple coiled tubing and electrical strings into a single string which can be deployed by one conventional unit. These technologies allow for the deployment of complex pumps on coiled tubing. Multiple strings in a casing may maintain a manageable shape for the tubing and eliminating the danger of ovalization