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    • 9. 发明授权
    • Downhole burners for in situ conversion of organic-rich rock formations
    • 井下燃烧器用于有机富集岩层的原位转化
    • US08122955B2
    • 2012-02-28
    • US12148388
    • 2008-04-18
    • Robert D. KaminskyChad C. Rasmussen
    • Robert D. KaminskyChad C. Rasmussen
    • E21B43/243
    • E21B36/003E21B36/02E21B41/0064E21B43/24E21B43/243E21B43/30Y02C10/14
    • A method for in situ heating of a selected portion of a targeted organic-rich rock formation such as an oil shale formation is provided. The method includes the steps of providing casing in a wellbore extending to a depth within or below the selected portion of the organic-rich rock formation, and also providing a tubing within the casing. An annular region is formed between the tubing and the surrounding casing. Air or other oxidant and a combustible fuel are injected into the wellbore. Either the air or the combustible fuel is in stoichiometric combustion excess. The method also includes providing hardware in the wellbore so as to cause the air and the combustible fuel to mix and to combust at substantially the depth of the organic-rich rock formation. The hardware may include more than one burner. Insulation may be placed along the tubing adjacent the first burner in order to reduce the heat transfer coefficient within the tubing and to provide a more uniform temperature within the annulus.
    • 提供了一种用于原位加热选定部分的富含有机物的岩层如油页岩层的方法。 该方法包括以下步骤:在井眼中提供壳体,其延伸到富含有机物岩层的选定部分内或之下的深度,并且还在壳体内提供管道。 在管道和周围的壳体之间形成环形区域。 将空气或其它氧化剂和可燃燃料注入井眼。 空气或可燃燃料的化学计量燃烧过量。 该方法还包括在井眼中提供硬件,以便使空气和可燃燃料混合并基本上在富含有机物岩层的深度上燃烧。 硬件可能包括多个燃烧器。 可以沿着邻近第一燃烧器的管道放置绝缘体,以便减少管道内的传热系数,并在环空中提供更均匀的温度。