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    • 3. 发明授权
    • Apparatus for passing electrical current through an underground formation
    • 用于使电流通过地下地层的装置
    • US4495990A
    • 1985-01-29
    • US427708
    • 1982-09-29
    • Charles H. TitusJohn K. WittleChristy W. Bell
    • Charles H. TitusJohn K. WittleChristy W. Bell
    • E21B43/24E21B43/00
    • E21B43/2401
    • An apparatus for passing electrical current from a D.C. power source through an underground formation in the extraction of carbonaceous fluids from beneath the earth's surface comprises an anode and a cathode remote from the anode. The anode is comprised of a containment positioned proximate to the underground formation within which is placed layers of material suitable for conduction. First conductor means connect the conduction material and the first terminal of the D.C. power source. The cathode is comprised of a wire screen housing of electrically conductive material which is supported within a well bore proximate to the underground formation. Second conductor means connects the wire screen housing to the second terminal of the D.C. power source. Electrical current from the power source is passed along the first conductor means, through the anode, through the underground formation, through the cathode and back to the power source through the second conductor means.
    • 一种用于在来自地下表面提取含碳流体的地方将来自直流电源的电流通过地下地层的装置包括远离阳极的阳极和阴极。 阳极由位于地下地层附近的容纳物组成,其中放置适于传导的材料层。 第一导体意味着连接导电材料和直流电源的第一端子。 阴极由导电材料的丝网外壳组成,其被支撑在靠近地下地层的井眼内。 第二导体装置将丝网外壳连接到直流电源的第二端。 来自电源的电流沿着第一导体装置通过阳极通过地下地层通过阴极并通过第二导体装置返回到电源。
    • 8. 发明授权
    • Method and system for producing methane gas from methane hydrate formations
    • 从甲烷水合物地层生产甲烷气体的方法和系统
    • US07322409B2
    • 2008-01-29
    • US11047515
    • 2005-01-31
    • J. Kenneth WittleChristy W. Bell
    • J. Kenneth WittleChristy W. Bell
    • E21B43/24
    • E21B43/16E21B43/2401E21B2043/0115
    • A system for producing gas from a gas hydrate formation includes a first electrode and a second electrode. The first electrode is disposed in proximity of a first region of the formation, and the second electrode is disposed within a second region of the formation. The second electrode is separated from the first electrode by an electro-conductive path through the formation. An extraction well extends within the formation and intersects the electro-conductive path. The well comprises one or more perforations in fluid communication with the formation. A voltage source is connected to the electrodes and operates to produce a voltage difference across the electrodes. A method for extracting gases from a gas hydrate formation includes the step of establishing a voltage difference across two or more electrodes in a hydrate formation to thermally react with the hydrate formation and release gas from the formation.
    • 用于从气体水合物生成气体的系统包括第一电极和第二电极。 第一电极设置在地层的第一区域附近,并且第二电极设置在地层的第二区域内。 第二电极通过穿过地层的导电路径与第一电极分离。 提取井在地层内延伸并与导电路径相交。 该井包括与地层流体连通的一个或多个穿孔。 电压源连接到电极并且操作以在电极之间产生电压差。 从天然气水合物层中提取气体的方法包括在水合物形成中的两个或多个电极之间建立电压差以与水合物形成热反应并从地层释放气体的步骤。