Global Patent Index - EP 0250069 A3

EP 0250069 A3 19890329 - A DEEPWATER FLOATING DRILLING AND PRODUCTION FACILITY INCORPORATING FLEXIBLE PRODUCTION RISERS

Title (en)

A DEEPWATER FLOATING DRILLING AND PRODUCTION FACILITY INCORPORATING FLEXIBLE PRODUCTION RISERS

Publication

EP 0250069 A3 19890329 (EN)

Application

EP 87303005 A 19870407

Priority

US 87657686 A 19860620

Abstract (en)

[origin: EP0250069A2] A method of using a floating platform (12) in deep (1000-3000 feet) water as a drilling/workover and production platform. By interconnecting the subsea wellheads of at least one template (16) to the platform using flexible production risers (26) connected through a reverse loop, the platform may be adjusted on its moorings to position the platform directly over a second template (18) for subsequent drilling or workover. This eliminates the need for separate drilling platforms and workboats. Further, wells of separate templates can be serviced separately and the entire field production need not be completely curtailed during such a workover.

IPC 1-7

E21B 7/128; E21B 43/01; B63B 35/44

IPC 8 full level

E21B 7/132 (2006.01); B63B 35/44 (2006.01); E21B 7/128 (2006.01); E21B 43/01 (2006.01)

CPC (source: EP)

B63B 1/107 (2013.01); B63B 35/4413 (2013.01); E21B 7/128 (2013.01); E21B 41/08 (2013.01); E21B 43/01 (2013.01)

Citation (search report)

  • [A] EP 0063911 A2 19821103 - TAYLOR WOODROW CONST LTD [GB]
  • [E] GB 2182083 A 19870507 - SHELL INT RESEARCH
  • [A] PETROLEUM ENGINEER INTERNATIONAL, vol. 57, no. 6, June 1985, pages 58-67, Petroleum Engineer Publishing Co., Dallas, Texas, US; N.N. PANICKER: "Flexible pipes in production risers"
  • [A] L'INDUSTRIE DU PETROLE, vol. 46, no. 490, January/February 1978, pages 37-43, Edition Oliver Lesourd, Paris, FR; R. VIVIER et al.: "A new design of concrete floatting platforms"

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0250069 A2 19871223; EP 0250069 A3 19890329; EP 0250069 B1 19930630; CA 1294495 C 19920121; DE 3786374 D1 19930805; DK 312487 A 19871221; DK 312487 D0 19870619; JP S634193 A 19880109; NO 872588 D0 19870619; NO 872588 L 19871221

DOCDB simple family (application)

EP 87303005 A 19870407; CA 537593 A 19870521; DE 3786374 T 19870407; DK 312487 A 19870619; JP 8490487 A 19870408; NO 872588 A 19870619