Systems and methods for injecting or retrieving tubewire...

Wells – Processes – Assembling well part

Reexamination Certificate

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C166S077200, C254S13430R

Reexamination Certificate

active

07845419

ABSTRACT:
The present invention provides systems and methods for injecting or retrieving tubewire into or out of coiled tubing. The system comprises an injector, coiled tubing coupled to the injector and a pumping mechanism. The injector is adapted to apply a force to inject or retrieve the tubewire into or out of the coiled tubing while the pump pumps fluid in the direction of the force to provide fluid drag on the tubewire. The tubewire may be bent or straightened, and may include a protuberance on its free end to assist in the injection and retrieval process. During injection, the coiled tubing may remain on a reel or may be stretched out along a surface.

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patent: 5573255 (1996-11-01), Salpaka
patent: 5599004 (1997-02-01), Newman et al.
patent: 6454014 (2002-09-01), Coats et al.
patent: 7152685 (2006-12-01), Adnan et al.
patent: 2006/0054315 (2006-03-01), Newman
British Combined Search and Examination Report dated Jan. 28, 2010, for corresponding British Application No. 0918475.5, filed Oct. 22, 2009.
Julian, J.Y, “State-of-the-Art Coiled Tubing Operations at Prudhoe Bay, Alaska”, IPTC 11533, International Petroleum Technology Conference, Dubai, U.A.E., Dec. 4-6, 2007, 10 pgs.
Newman, K.R., “Development of a Coiled Tubing Cable Installation System”, II SPE 30679, SPE Annual Technical Conference & Exhibition, Dallas, U.S.A., Oct. 22-25, 1995, pp. 389-395.
Rangel, P.D. “Fiber-Optic-Enabled Coiled-Tubing Operations on Alaska's North Slope”, SPE 106567, SPE/ICoTA Coiled Tubing and Well Intervention Conference & Exhibition, The Woodlands, TX, U.S.A., Mar. 20-21, 2007, 8 pgs.

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