(19)
(11) EP 2 425 093 A1

(12)

(43) Date of publication:
07.03.2012 Bulletin 2012/10

(21) Application number: 10770418.1

(22) Date of filing: 30.04.2010
(51) International Patent Classification (IPC): 
E21B 33/12(2006.01)
(86) International application number:
PCT/US2010/033161
(87) International publication number:
WO 2010/127240 (04.11.2010 Gazette 2010/44)
(84) Designated Contracting States:
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 SE SI SK SM TR

(30) Priority: 01.05.2009 US 174904 P

(71) Applicant: Weatherford/Lamb, Inc.
Houston, TX 77027 (US)

(72) Inventors:
  • INGRAM, Gary
    Richmond, Texas 77469 (US)
  • BANTA, Deborah, L.
    Humble, TX 77346 (US)
  • FAGLEY. Stone
    Katy, TX 77494 (US)
  • WILSON, Paul
    Aledo, TX 76008 (US)
  • BRAMWELL, Jacob
    Huston, Texas 77035 (US)
  • NGUYEN, Minh-Tuan
    Huston, Texas 77064 (US)
  • GANDIKOTA, Varadaraju
    Cypress, Texas 77433 (US)
  • JOHNSON, Chris
    Huston, Texas 77095 (US)

(74) Representative: Shanks, Andrew et al
Marks & Clerk LLP Aurora 120 Bothwell Street
Glasgow G2 7JS
Glasgow G2 7JS (GB)

   


(54) WELLBORE ISOLATION TOOL USING SEALING ELEMENT HAVING SHAPE MEMORY POLYMER