(19)
(11) EP 1 160 417 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.01.2004 Bulletin 2004/02

(43) Date of publication A2:
05.12.2001 Bulletin 2001/49

(21) Application number: 01304633.9

(22) Date of filing: 25.05.2001
(51) International Patent Classification (IPC)7: E21B 43/04, E21B 43/08
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 30.05.2000 US 583305

(71) Applicant: Halliburton Energy Services, Inc.
Dallas, Texas 75381-9052 (US)

(72) Inventors:
  • Dusterhoft, Ronald G.
    Katy, Texas 77494 (US)
  • Jannise, Richard Claude
    Katy, Texas 77450 (US)
  • Roper, Janet
    Houston, Texas 77072 (US)

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

   


(54) Method and apparatus for improved fracpacking or gravel packing operations


(57) Methods and apparatus for completing an unconsolidated subterranean zone penetrated by a well bore (510) are provided. The methods basically comprise the steps of placing a pre-packed screen (521) having an outer screen and an inner screen in the zone whereby an annulus (522) formed between the inner and outer screen is packed with sand, placing a shroud (520) in the zone, isolating the screens (521), shroud (520), and well bore (510) in the zone, and injecting particulate material into the annuli between the outer screen and the shroud (520) and between the shroud (520) and the well bore (510) to thereby form packs of particulate material therein to prevent the migration of fines and sand with produced fluids.






Search report