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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0975678 (2007-10-19) |
등록번호 | US-7841401 (2011-01-31) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 93 인용 특허 : 655 |
Methods of treating a subsurface formation are described herein. Methods for treating a subsurface treatment area in a formation may include introducing a fluid into the formation from a plurality of wells offset from a treatment area of an in situ heat treatment process to inhibit outward migration
Methods of treating a subsurface formation are described herein. Methods for treating a subsurface treatment area in a formation may include introducing a fluid into the formation from a plurality of wells offset from a treatment area of an in situ heat treatment process to inhibit outward migration of formation fluid from the in situ heat treatment process.
What is claimed is: 1. A method for treating a subsurface treatment area in a formation, comprising: forming a low temperature barrier around at least a portion of a perimeter of the treatment area; providing heat to the subsurface treatment area in the formation from one or more heaters in the tre
What is claimed is: 1. A method for treating a subsurface treatment area in a formation, comprising: forming a low temperature barrier around at least a portion of a perimeter of the treatment area; providing heat to the subsurface treatment area in the formation from one or more heaters in the treatment area; introducing a sweep fluid into the formation from a plurality of wells offset from the heaters and between the low temperature barrier and the heaters in the treatment area to inhibit outward migration of formation fluid from the treatment area; and providing additional heat to at least a portion of the formation adjacent to at least one well of the plurality of wells, wherein at least one additional heat source is positioned in the well of the plurality of wells, and wherein the heat source is configured to provide the additional heat without raising an average temperature of the portion of the formation above a pyrolysis temperature of hydrocarbons in the formation or a dissociation temperature of nahcolite in the formation. 2. The method of claim 1, wherein the sweep fluid comprises carbon dioxide. 3. The method of claim 1, wherein the sweep fluid comprises water. 4. A method for treating a subsurface treatment area in a formation, comprising: providing a plurality of wells offset from a treatment area of an in situ heat treatment area process; wherein at least some of the plurality of wells are injection wells configured to introduce a sweep fluid into the formation to inhibit migration of formation fluid from the in situ heat treatment area; and wherein at least some of the plurality of wells comprise one or more heaters; and providing heat from at least some of the heaters to a portion of the formation adjacent to the injection wells. 5. The method of claim 4, wherein the sweep fluid comprises carbon dioxide. 6. The method of claim 4, wherein the sweep fluid comprises low molecular weight hydrocarbon gases. 7. The method of claim 4, wherein one of more of the injection wells are configured to introduce the sweep fluid into one or more permeable zones of the formation. 8. The method of claim 4, further comprising forming a barrier offset from the plurality of wells, wherein the plurality of wells are positioned between the barrier and the treatment area. 9. The method of claim 8, wherein the barrier comprises a low temperature zone formed by freeze wells.
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