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- Well Completion > Completion Installation and Operations > Coiled tubing operations (1.00)
- Production and Well Operations > Well Intervention (1.00)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Well Completion > Completion Installation and Operations > Coiled tubing operations (1.00)
- Production and Well Operations > Well Intervention (1.00)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
- Information Technology > Knowledge Management (0.60)
- Information Technology > Communications > Collaboration (0.60)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
The CT injector is the equipment component used to grip the continuous-length tubing and provide the forces needed for deployment and retrieval of the tube into and out of the wellbore. Figure 1.5--CT injector and typical well-control stack rig-up (courtesy of SAS Industries Inc.). The tubing guide arch assembly may incorporate a series of rollers along the arch to support the tubing or may be equipped with a fluoropolymer-type slide pad run along the length of the arch. The tubing guide arch should also include a series of secondary rollers mounted above the CT to center the tubing as it travels over the guide arch. The number, size, material, and spacing of the rollers can vary significantly with different tubing guide arch designs. For CT used repeatedly in well intervention and drilling applications, the radius of the tubing guide arch should be at least 30 times the specified OD of the CT in service. This factor may be less for CT that will be bend-cycled only a few times, such ...
- Europe (1.00)
- Asia (1.00)
- North America > United States > Texas (0.47)
- Europe > United Kingdom > North Sea > Central North Sea > Central Graben > Block 21/10 > Forties Field > Forties Formation (0.99)
- Asia > India > Rajasthan > Cambay Basin (0.99)
- Asia > India > Gujarat > Cambay Basin > Jotana Field (0.99)
- Information Technology > Knowledge Management (0.50)
- Information Technology > Communications > Collaboration (0.40)
Coiled-tubing drilling (CTD) can be very effective in certain situations. Its application is growing as experience defines what it takes to be successful. Coiled-tubing drilling (CTD) has a rather extensive history and received a large amount of press and hype from the 1990s to date, a significant amount being less than positive. There have been numerous highly successful applications of CTD technology in such regions as Alaska and the United Arab Emirates, yet CTD is still considered an immature new technology. One example of exaggerated expectations is CTD's reputation for offering certain advantages, including small footprint, high mobility, and quick operations. However, when more complex CTD services are planned, including directional drilling and cased completions, these advantages may no longer apply. These materials are typically not required for conventional CT services. When including the additional separators and nitrogen-pumping equipment required for underbalanced drilling (UBD), the advantages related to small footprint and high mobility may no longer be the case. Numerous truckloads of equipment can take days to rig up in preparation to drill with CT. Figure 1 shows a purpose-built CTD rig working in Oman.
- North America > United States > Texas (0.28)
- North America > United States > Alaska (0.25)
- Asia > Middle East > Oman (0.24)
- Asia > Middle East > UAE (0.24)
- Well Drilling > Drilling Operations > Coiled tubing drilling (1.00)
- Well Completion > Completion Installation and Operations > Coiled tubing operations (1.00)
- Information Technology > Knowledge Management (0.50)
- Information Technology > Communications > Collaboration (0.40)
Numerous continuous-length tubular service concept trials and inventions paved the way for the creation of present day CT technology. The following discussion outlines some of the inventions and major milestones that directly contributed to the evolution of the continuous-length tubular products used in modern CT services. The origins of continuous-length, steel-tubing technology can be traced to engineering and fabrication work pioneered by Allied engineering teams during the Second World War. Project 99, code named "PLUTO" (an acronym for Pipe Lines Under The Ocean), was a top-secret Allied invasion enterprise involving the deployment of pipelines from the coast of England to several points along the coast of France.
- Asia (1.00)
- Europe > United Kingdom (0.65)
- North America > United States > Texas (0.46)
- Europe > United Kingdom > North Sea > Central North Sea > Central Graben > Block 21/10 > Forties Field > Forties Formation (0.99)
- Asia > India > Rajasthan > Cambay Basin (0.99)
- Asia > India > Gujarat > Cambay Basin > Jotana Field (0.99)
- (3 more...)
- Information Technology > Knowledge Management (0.50)
- Information Technology > Communications > Collaboration (0.40)
There are several coiled-tubing (CT) equipment manufacturers presently marketing various designs of CT injectors, service tubing reels, and related well-control equipment in the industry today. At present, the predominant equipment design for CT well-intervention and drilling services incorporates the vertically mounted, counter-rotating chaindrive type of injector. The CT unit is a portable, hydraulically powered service system that is designed to inject and retrieve a continuous string of tubing concentric to larger-inside diameter (ID) production tubing or casing strings. At the present time, CT manufactured for well intervention and drilling application is available in sizes ranging from 0.750 to 3.500 in. A simplified illustration of a CT unit is shown inFigure 1. *
- Well Drilling (1.00)
- Well Completion > Completion Installation and Operations > Coiled tubing operations (1.00)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)