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    • 8. 发明申请
    • IN-SITU KEROGEN CONVERSION AND RECOVERY
    • 现场转换和恢复
    • WO2012088476A2
    • 2012-06-28
    • PCT/US2011/067023
    • 2011-12-22
    • CHEVRON U.S.A. INC.WIGAND, MarcusCARLSON, Robert, M.LOONEY, Mark
    • WIGAND, MarcusCARLSON, Robert, M.LOONEY, Mark
    • C10G1/04C10G7/00C10G9/00C10G47/00
    • 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 A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and further processed to isolate the organic acids contained therein.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.
    • 本文公开了从地下(油)页岩层中提取基于油母质的产品的方法。 这些方法依靠使用化学氧化剂对页岩结合的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的干酪根接触的地层流体。 还向地层流体提供碱性物质以移动在干酪根氧化期间产生的有机酸。 包括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所含的有机酸。 用于分离酸的示例性方法包括处理可移动的基于油母质的产品,使得至少一部分有机酸与可移动的基于干酪根的产品形成分离的相。 有机酸可以使用有机萃取液从可移动的基于油母质的产品中进一步提取。 分离的有机酸可以通过使产物适合作为炼油原料,燃料或润滑剂共混物,反应中间体,化学原料或化学中间体共混物的反应过程来升级。