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    • 1. 发明申请
    • IN-SITU KEROGEN CONVERSION AND RECOVERY
    • 原地煤油转化和回收
    • WO2012088476A3
    • 2012-10-26
    • PCT/US2011067023
    • 2011-12-22
    • CHEVRON USA INCWIGAND MARCUSCARLSON ROBERT MLOONEY MARK
    • WIGAND MARCUSCARLSON ROBERT MLOONEY MARK
    • C10G1/04C10G7/00C10G9/00E21B43/16
    • C10G1/04C10G9/00C10G27/06C10G27/12C10G49/00C10G2300/4081C10G2400/10E21B43/24Y02P30/44
    • Disclosed herein are methods for extracting a kerogen-based product from subsurface (oil) shale formations. These methods rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. An alkaline material is also provided to the formation fluid to mobilize organic acids which are produced during oxidation of the kerogen. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and further processed to isolate the organic acids contained therein. An exemplary method for isolating the acids includes treating the mobile kerogen- based product such that at least a portion of the organic acids form a separate phase from the mobile kerogen-based product. The organic acids may further be extracted from the mobile kerogen-based product using an organic extraction fluid. The isolated organic acids can be upgraded by a reaction process that make the products suitable as refinery feedstocks, fuel or lubricant blendstocks, reaction intermediates, chemical feedstocks, or chemical intermediate blendstocks.
    • 本文公开了用于从地下(油)页岩地层提取基于干酪根的产物的方法。 这些方法依靠使用化学氧化剂对页岩结合干酪根进行化学修饰以使其移动。 将氧化剂提供给与地下页岩中干酪根接触的地层流体。 还向地层流体提供碱性物质以调动在干酪根氧化过程中产生的有机酸。 包含有机酸的基于移动干酪根的产品从地下页岩地层中取出并进一步处理以分离其中包含的有机酸。 用于分离酸的示例性方法包括处理基于移动干酪根的产品,使得至少一部分有机酸与移动干酪根基产品形成分离相。 有机酸可以进一步使用有机提取液从移动油母沥青基产品中提取。 分离的有机酸可以通过使产物适合作为炼油原料,燃料或润滑剂混合原料,反应中间体,化学原料或化学中间体混合原料的反应过程来升级。