EP 1412615 A1 20040428 - IN-SITU EVAPORATION
Title (en)
IN-SITU EVAPORATION
Title (de)
IN-SITU VERDAMPFUNG
Title (fr)
VAPORISATION IN SITU
Publication
Application
Priority
- DE 0202744 W 20020726
- DE 10137622 A 20010803
- DE 10159311 A 20011204
Abstract (en)
[origin: WO03014522A1] The invention relates to methods for the exploitation of desirable geo-productive resources (for example, superheated steam, crude oil, fissuring) from boreholes with an at least partly cemented casing (4), whereby a pressure drop is generated from the rock chamber (5), surrounding the lower borehole chamber (3) to the above, which renders the geo-productive resource exploitable. According to the invention, the resource may be rendered more exploitable, whereby a pressure seal (70, 72, 74, 80) is fitted for a pressure separation between the lower borehole chamber (3) and the flow chamber (1, 14), above the pressure seal (70, 72, 74, 80) within the casing (4), a working pressure (preferably atmospheric pressure) is introduced into at least part of the flow chamber (1, 14) and the working pressure is introduced into the lower borehole chamber (3) and/or into the rock chamber surrounding the above. A vertically-displaceable valve tube (68) is preferably used as lower end section of the production pipe (7).
IPC 1-7
IPC 8 full level
E21B 43/16 (2006.01); E21B 43/18 (2006.01); E21B 43/26 (2006.01)
CPC (source: EP US)
E21B 43/16 (2013.01 - EP US); E21B 43/18 (2013.01 - EP US); E21B 43/261 (2013.01 - EP US); E21B 43/2605 (2020.05 - EP US)
Citation (search report)
See references of WO 03014522A1
Designated contracting state (EPC)
DE IT TR
DOCDB simple family (publication)
WO 03014522 A1 20030220; WO 03014522 A9 20030327; EP 1412615 A1 20040428; EP 1412615 B1 20050112; US 2004244990 A1 20041209; US 7117946 B2 20061010
DOCDB simple family (application)
DE 0202744 W 20020726; EP 02754444 A 20020726; US 48584404 A 20040203