Shale oil recovery from fractured oil shale
阅读：444发布：2021-01-01
专利汇可以提供Shale oil recovery from fractured oil shale专利检索，专利查询，专利分析的服务。并且Shale oil is recovered from vertically fractured oil shale formations by injecting hot solvent into the bottom of the fractured zone, removing shale oil from a point above the point of injection, then incrementally raising the recovery point to maintain the recovery point above the level of the silt sedimented within the fracture chimney.，下面是Shale oil recovery from fractured oil shale专利的具体信息内容。
2. The process of claim 1 wherein the hot solvent is stabilized shale oil or a fraction thereof.
3. A process according to claim 1 wherein the hot solvent has a temperature from about 750 to about 950* F when it contacts said oil shale.
4. A process according to claim 1 wherein said hot solvent is injected through an injection pipe extending downward into the fractured zone and said shale oil and solvent and removed through a recovery pipe extending from said recovery point to the surface.
5. A process according to claim 4 wherein said injection pipe and said recovery pipe are concentric with each other.
6. A process according to claim 1 wherein said fractured zone is formed by an underground nuclear explosion.
7. A process according to claim 1 wherein said oil shale comprises Green River oil shale.
8. A process according to claim 4 wherein said fractured zone is formed by an underground nuclear explosion and wherein said solvent comprises shale oil and said solvent has a temperature of from about 800* to about 900*F. when it contacts said oil shale.
9. A process according to claim 1 wherein the injection point is located near the top of the fractured zone so that the injected solvent runs down over the fractured oil shale toward the bottom of the zone.
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