(19)
(11) EP 2 766 563 A1

(12)

(43) Date of publication:
20.08.2014 Bulletin 2014/34

(21) Application number: 11873839.2

(22) Date of filing: 14.10.2011
(51) International Patent Classification (IPC): 
E21B 33/06(2006.01)
E21B 23/00(2006.01)
E21B 21/00(2006.01)
(86) International application number:
PCT/US2011/056274
(87) International publication number:
WO 2013/055351 (18.04.2013 Gazette 2013/16)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(71) Applicant: Halliburton Energy Services, Inc.
Houston, TX 77072 (US)

(72) Inventors:
  • STACHOWIAK, Robert, S.
    Rockwall, TX 75087 (US)
  • PARLEE, James, C.T.
    Houston, TX 77032 (US)

(74) Representative: Bennett, Adrian Robert J. et al
A.A. Thornton & Co. 10 Old Bailey
London EC4M 7NG
London EC4M 7NG (GB)

   


(54) ALIGNMENT OF BOP STACK TO FACILITATE USE OF A ROTATING CONTROL DEVICE