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2. 发明授权

US4573530A In-situ gasification of tar sands utilizing a combustible gas 失效
标题翻译：使用可燃气体的沥青砂原位气化
公开(公告)号：US4573530A
公开(公告)日：1986-03-04
申请号：US549140
申请日：1983-11-07
申请人： Costandi A. Audeh , Robert D. Offenhauer
发明人： Costandi A. Audeh , Robert D. Offenhauer
IPC分类号： E21B43/243 , C10J5/00
CPC分类号： E21B43/243
摘要： A subterranean, viscous oil-containing formation, e.g. tar sands, which has previously been exploited by an in-situ combustion operation to recover the maximum amount of oil therefrom and leaving a solid coke like residue in the formation, is first saturated with a combustible gas such as methane, ethane, propane, natural gas or mixtures thereof, thereafter reinitiating in-situ combustion and then injecting a mixture of an oxygen-containing gas and steam to convert the coke like residue to a combustible product gas consisting predominantly of carbon monoxide and hydrogen within the formation. The combustible product gas is recovered and may be utilized directly as a fuel gas, or may be utilized as feed stock for petro chemical manufacturing processes.
摘要翻译：地下，粘稠的含油地层，例如。先前已经通过原位燃烧操作来利用以回收最大量的油并且在地层中留下类似残留物的固体焦油的焦油砂首先被可燃气体例如甲烷，乙烷，丙烷，天然气气体或其混合物，然后重新启动原位燃烧，然后注入含氧气体和蒸汽的混合物，以将焦炭样残余物转化成主要由一氧化碳和氢气组成的可燃产物气体。可燃产品气体被回收并且可以直接用作燃料气体，或者可以用作石油化工制造过程的原料。

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