(19)
(11) EP 1 224 379 A1

(12)

(43) Date of publication:
24.07.2002 Bulletin 2002/30

(21) Application number: 00992743.5

(22) Date of filing: 26.10.2000
(51) International Patent Classification (IPC)7E21B 43/14
(86) International application number:
PCT/US0041/650
(87) International publication number:
WO 0131/167 (03.05.2001 Gazette 2001/18)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 28.10.1999 US 429231

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

(72) Inventors:
  • FREEMAN, Tommie, Austin
    Flower Mount, TX 75028 (US)
  • GODFREY, Craig William
    Richardson, TX 75080 (US)

(74) Representative: UEXKÜLL & STOLBERG 
PatentanwälteBeselerstrasse 4
22607 Hamburg
22607 Hamburg (DE)

   


(54) FLOW CONTROL APPARATUS FOR USE IN A SUBTERRANEAN WELL