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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0571381 (1990-08-23) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 341 인용 특허 : 0 |
An apparatus and method are disclosed for producing thick tar sand deposits by electrically preheating paths of increased injectivity between an injector and producers, wherein the injector and producers are arranged in a triangular pattern with the injector located at the apex and the producers loc
An apparatus and method are disclosed for producing thick tar sand deposits by electrically preheating paths of increased injectivity between an injector and producers, wherein the injector and producers are arranged in a triangular pattern with the injector located at the apex and the producers located on the base of the triangle. These paths of increased injectivity are then steam flooded to produce the hydrocarbons.
A process for recovering hydrocarbons from hydrocarbon-bearing deposits comprising: providing at least two horizontal production wells near the bottom of a target production area, wherein the production wells are horizontal electrodes during an electrical heating stage, and production wells during a
A process for recovering hydrocarbons from hydrocarbon-bearing deposits comprising: providing at least two horizontal production wells near the bottom of a target production area, wherein the production wells are horizontal electrodes during an electrical heating stage, and production wells during a production stage; providing a horizontal injection well essentially centrally located between and above the production wells, wherein the injection well is a horizontal electrode during an electrical heating stage, and an injection well during a production stage; electrically exciting the electrodes during a heating stage such that current flows between the injection well and the horizontal production wells, creating preheated paths between the injection well and the horizontal production wells having increased injectivity; injecting through the injection well steam to form a steam vapor containing portion of the formation thereby mobilizing formation oil and permitting the formation oil to flow by gravity to near the bottom of the target production area; and recovering hydrocarbons from the production wells. An apparatus for recovering hydrocarbons from hydrocarbon bearing deposits using an improved steam assisted gravity drainage process, the apparatus comprising: at least two horizontal production wells near the bottom of a target production area, wherein the production wells are horizontal electrodes during an electrical heating stage, and production wells during a production stage; and a horizontal injection well essentially centrally located between and from about 30 to about 140 feet from the producer wells, wherein the injection well is a horizontal electrode during an electrical heating stage, and an injection well during a production stage.
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