(19)
(11) EP 1 381 753 A1

(12)

(43) Date of publication:
21.01.2004 Bulletin 2004/04

(21) Application number: 01994611.0

(22) Date of filing: 11.10.2001
(51) International Patent Classification (IPC)7E21B 36/04, E21B 43/24
(86) International application number:
PCT/EP2001/011819
(87) International publication number:
WO 2002/086284 (31.10.2002 Gazette 2002/44)
(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: 24.04.2001 WO PCT/EP01/04641

(71) Applicant: SHELL INTERNATIONALE RESEARCHMAATSCHAPPIJ B.V.
2596 HR Den Haag (NL)

(72) Inventors:
  • BIELAMOWICZ, Lawrence, James
    Bellaire, TX 77401 (US)
  • CARL, Frederick, Gordon, Jr.
    Houston, TX 77036 (US)
  • COLES, John, Matthew
    Katy, TX 77450 (US)
  • KARANIKAS, John, Michael
    Houston, TX 77027 (US)
  • KEEDY, Charles, Robert
    Houston, TX 77084 (US)
  • MENOTTI, James, Louis
    Dickinson, TX 77539 (US)
  • DE ROUFFIGNAC, Eric
    Houston, TX 77005 (US)
  • VINEGAR, Harold, J.
    Houston, TX 77096 (US)

   


(54) ELECTRICAL WELL HEATING SYSTEM AND METHOD