(19)
(11) EP 0 263 722 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.05.1989 Bulletin 1989/18

(43) Date of publication A2:
13.04.1988 Bulletin 1988/15

(21) Application number: 87308990.8

(22) Date of filing: 12.10.1987
(51) International Patent Classification (IPC)4: E21B 43/017, E21B 33/035
(84) Designated Contracting States:
DE GB NL SE

(30) Priority: 10.10.1986 US 917763

(71) Applicant: CONOCO INC.
Ponca City Oklahoma 74603 (US)

(72) Inventors:
  • Leach, Colin Peter
    Houston TX 77077 (US)
  • White, Charles Nixon
    Houston TX 77005 (US)

(74) Representative: Davies, Christopher Robert et al
Frank B. Dehn & Co., European Patent Attorneys, 179 Queen Victoria Street
London EC4V 4EL
London EC4V 4EL (GB)


(56) References cited: : 
   
       


    (54) Casing guide for well template


    (57) A casing guide apparatus includes a subsea well template 12 having a well opening (44) defined therein, and a cylindrical well casing (32) received through the well opening. A casing guide bushing (68) is operably associated with the template (12) and the casing (32) for permitting relative vertical movementt between the template and the casing and for preventing relative lateral movement between the template and the casing at the well opening.







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