초록 ▼

Apparatus and corresponding methods are disclosed for controlling fluid flow within a subterranean well. In a described embodiment, a longitudinally spaced apart series of selectively set and unset inflatable packers is utilized to substantially isolate desired portions of a formation intersected by

Apparatus and corresponding methods are disclosed for controlling fluid flow within a subterranean well. In a described embodiment, a longitudinally spaced apart series of selectively set and unset inflatable packers is utilized to substantially isolate desired portions of a formation intersected by a well. Setting and unsetting of the packers may be accomplished by a variety of devices, some of which may be remotely controllable. Additionally, a series of fluid control devices may be alternated with the packers as part of a tubular string positioned within the well.

대표청구항 ▼

Apparatus and corresponding methods are disclosed for controlling fluid flow within a subterranean well. In a described embodiment, a longitudinally spaced apart series of selectively set and unset inflatable packers is utilized to substantially isolate desired portions of a formation intersected by

Apparatus and corresponding methods are disclosed for controlling fluid flow within a subterranean well. In a described embodiment, a longitudinally spaced apart series of selectively set and unset inflatable packers is utilized to substantially isolate desired portions of a formation intersected by a well. Setting and unsetting of the packers may be accomplished by a variety of devices, some of which may be remotely controllable. Additionally, a series of fluid control devices may be alternated with the packers as part of a tubular string positioned within the well. oduction Systems: The Search for Cost-Effective Technology; Mar. 19-21, 1990; (p. 15). Division of Petroleum Engineering and Applied Geophysics, NTH; Simplified Subsea System Design; Oct. 23-27, 1989; (pp. 2-32). Subsea Intervention Systems Ltd.; Subsea Applications for Downhole Pumping; M. Bowring, et al; DOT 1991; (pp. 71-78). Design Certification Manuals; Jul. 29, 1986. Subsea Wells; A Viable Development Alternative; Ocean Industry; Nov. 1986 (p. 1). SPE 11176; New Generation 18-3/4-in.-15,000-psi Subsea Wellhead System; Sep. 26-29, 1982; B.F. Baugh, C.R. Gordon, G.C. Weiland. National Supply Company (UK) Limited; Through Bore Tree system and Workover Riser 7-1/16" 5000 psi; Jun. 1985. National Supply Company (UK) Limited; Through Bore Tree system and Workover Riser 7-1/16"-5M; Oct. 1985. OTC 5847; Subsea Template and Trees for Green Canyon Block 29 Development; May 2-5, 1988; M.L. Teers, T.M. Stroud, A.J. Masciopinto. OTC 5809; Critical Points for the Project of Very Deep Subsea Completions; May 2-5, 1988; J.M. Formigli Filho, O.J.S. Ribeiro. Oil & Gas Journal; Completion Techniques Report; B.F. Baugh; 1989. Oil & Gas Journal; Offshore Report; B.F. Baugh; May 1989. Concentric Tubing Hanger Designs for BP's Universal Subsea Wellhead; H.P. Hopper; undated. SPE 23145; Installation of Concentric Subsea Completions From a Jack-Up in the Welland Field: A Case History; Sep. 3-6, 1991; R. O. Sanders (pp. 405-415) (15 sheets drawing