Title (en)

SECONDARY OIL RECOVERY SYSTEM

Publication

EP 0069827 A3 19840516 (EN)

Application

EP 82102741 A 19820331

Priority

US 28248881 A 19810713

Abstract (en)

[origin: EP0069827A2] A method and apparatus for oil recovery wherein a downhole steam generator 16 and a pump 32 are secured substantially parallel with each other to permit simultaneous positioning in the borehole and are operated independently whereby said pump 32 can be operated sequentially or simultaneously with said generator 16.

IPC 1-7

E21B 43/24; E21B 43/00; E21B 36/00; F04B 47/00

IPC 8 full level

E21B 43/243 (2006.01); E21B 36/00 (2006.01); E21B 36/02 (2006.01); E21B 43/12 (2006.01); E21B 43/14 (2006.01); E21B 43/24 (2006.01); F04B 47/02 (2006.01)

CPC (source: EP US)

E21B 36/006 (2013.01 - EP); E21B 36/02 (2013.01 - EP); E21B 43/121 (2013.01 - EP US); E21B 43/14 (2013.01 - EP); E21B 43/24 (2013.01 - EP US); F04B 47/02 (2013.01 - EP)

Citation (search report)

• [Y] US 4185691 A 19800129 - TONGRET STEWART [US], et al
• [Y] US 3028916 A 19620410 - WATERMAN RUSSELL R
• [A] US 4078613 A 19780314 - HAMRICK JOSEPH T, et al
• [A] US 2980184 A 19610418 - REED DAVIS W
• [A] US 2998069 A 19610829 - STEPHENS RAYMOND M
• [A] US 3420301 A 19690107 - RILEY OREY L, et al
• [A] US 1703428 A 19290226 - NEILSEN KARL P

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0069827 A2 19830119; EP 0069827 A3 19840516; DK 294582 A 19830114; JP S5811291 A 19830122; NO 822104 L 19830114

DOCDB simple family (application)

EP 82102741 A 19820331; DK 294582 A 19820630; JP 10628282 A 19820622; NO 822104 A 19820623