(19)
(11) EP 2 006 486 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.08.2011 Bulletin 2011/35

(43) Date of publication A2:
24.12.2008 Bulletin 2008/52

(21) Application number: 08251821.8

(22) Date of filing: 23.05.2008
(51) International Patent Classification (IPC): 
E21B 33/12(2006.01)
E21B 33/134(2006.01)
 E21B 33/124(2006.01)
E21B 43/116(2006.01)
(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 MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 21.06.2007 US 766647

(71) Applicant: HALLIBURTON ENERGY SERVICES, INC.
Dallas, TX 75381-9052 (US)

(72) Inventors:
  • Hales, John H.
    Frisco Texas 75034 (US)
  • Burleson, John D.
    Denton Texas 71062 (US)
  • Drummond, Gavin H.
    Aberdeen Scotland AB23 8XQ (GB)
  • Flint, R. George
    Flower Mound Texas 75022 (US)

(74) Representative: Curtis, Philip Anthony et al
A.A. Thornton & Co. 235 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)

   


(54) Single trip well abandonment with dual permanent packers and perforating gun


(57) A method of abandoning a well includes the steps of: assembling a tool string (12) including a perforating gun (14) interconnected between first and second packer assemblies (24, 26); conveying the tool string (12) into a wellbore (20) in a single trip into the wellbore (20); setting the first packer assembly (24); setting the second packer assembly (26); firing the perforating gun (14); and flowing cement into an annulus longitudinally between the first and second packer assemblies (24, 26). A system for abandoning a well includes a tool string (12) configured for conveyance into a wellbore (20) in a single trip into the wellbore, the tool string (12) including a perforating gun (14) interconnected between first and second packer assemblies (24, 26), each of the first and second packer assemblies (24, 26) including a permanent packer.







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