(19)
(11) EP 1 125 037 A1

(12)

(43) Date of publication:
22.08.2001 Bulletin 2001/34

(21) Application number: 99952188.3

(22) Date of filing: 26.10.1999
(51) International Patent Classification (IPC)7E21B 43/24
(86) International application number:
PCT/CA9900/996
(87) International publication number:
WO 0025/002 (04.05.2000 Gazette 2000/18)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 26.10.1998 CA 2251157

(71) Applicant: Alberta Oil Sands Technology, and Research Authority
Edmonton,Alberta T6N 1E4 (CA)

(72) Inventors:
  • GOOD, William, KeithAlberta Research Council
    Edmonton, Alberta T6N 1E4 (CA)
  • LUHNING, Rick W.,Alberta Research Council
    Edmonton, Alberta T6N 1E4 (CA)
  • KISMAN, Kenneth, E.
    Calgary, Alberta K3A 4R6 (CA)

(74) Representative: Robinson, Ian Michael 
Appleyard Lees,15 Clare Road
Halifax HX1 2HY
Halifax HX1 2HY (GB)

   


(54) PROCESS FOR SEQUENTIALLY APPLYING SAGD TO ADJACENT SECTIONS OF A PETROLEUM RESERVOIR