(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