E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/30 (2006.01) B09C 1/02 (2006.01) B09C 1/06 (2006.01) C10G 45/00 (2006.01) E21B 17/02 (2006.01) E21B 36/00 (2006.01) E21B 43/16 (2006.01) E21B 43/24 (2006.01) E21B 43/243 (2006.01) E21B 47/022 (2006.01) G01V 3/26 (2006.01)
Patent
CA 2463110
A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be used to inhibit migration of fluids. Inhibition of migration of fluids may occur before, during, and/or after an in situ treatment process. For example, migration of fluids may be inhibited while heat is provided from heaters to at least a portion of the treatment area. Barriers may include naturally occurring portions (e.g., overburden, and/or underburden) and/or installed portions, such as frozen barrier zones, cooled by a refrigerant.
L'invention concerne un procédé permettant de bloquer la migration de fluides dans et/ou à l'extérieur d'une zone de traitement dans laquelle est réalisé un processus de conversion in situ. Il est possible d'utiliser, dans la formation, des barrières à proximité d'une zone de traitement afin d'empêcher la migration de fluides. Le blocage de la migration de fluides peut être mis en oeuvre avant, durant et/ou après un processus de traitement in situ. Par exemple, la migration de fluides peut être bloquée lors de l'application d'un traitement thermique à au moins une portion de la zone de traitement. Les barrières peuvent comprendre des portions naturelles (par exemple des dépôts de surface et/ou sous-jacents) et/ou des portions installées.
Aymond Dannie Antoine
Maher Kevin Albert
Mckinzie Billy John
Palfreyman Bruce Donald
Stegemeier George Leo
Shell Canada Limited
Smart & Biggar
LandOfFree
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