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1. 发明申请

US20150152718A1 Cyclic Solvent Hydrocarbon Recovery Process Using An Advance-Retreat Movement Of the Injectant 有权
标题翻译：循环溶剂烃回收过程使用注射器的推进移动
公开(公告)号：US20150152718A1
公开(公告)日：2015-06-04
申请号：US14480105
申请日：2014-09-08
申请人： Tapantosh Chakrabarty , Wenqiang Han
发明人： Tapantosh Chakrabarty , Wenqiang Han
IPC分类号： E21B43/16 , E21B43/30
CPC分类号： E21B43/16
摘要： Described is a cyclic solvent-dominated recovery process (CSDRP) for recovering hydrocarbons from an underground reservoir. The cyclic solvent process involves using an injection well to inject a viscosity-reducing solvent into the underground reservoir. Reduced viscosity oil is produced to the surface using the same well used to inject solvent. The process of alternately injecting solvent and producing a solvent/viscous oil blend through the same well continues in a series of cycles until additional cycles are no longer economical. To contact uncovered hydrocarbons between solvent fingers, the injection includes alternating injection and production, for creating an advance-retreat movement.
摘要翻译：描述了从地下储层回收碳氢化合物的循环溶剂主导回收方法（CSDRP）。循环溶剂过程包括使用注入井将降粘剂溶剂注入地下储层。使用与注入溶剂相同的孔，向表面产生降粘性油。交替注入溶剂并通过相同的孔产生溶剂/粘稠油混合物的过程继续进行一系列循环，直到另外的循环不再经济。为了接触溶剂指状物之间的未覆盖的碳氢化合物，注射剂包括交替注射和生产，用于产生提前撤退运动。

2. 发明申请

US20190032460A1 METHOD OF SOLVENT RECOVERY FROM A SOLVENT BASED HEAVY OIL EXTRACTION PROCESS 审中-公开
公开(公告)号：US20190032460A1
公开(公告)日：2019-01-31
申请号：US16036392
申请日：2018-07-16
申请人： Rahman Khaledi , Forough Farshidi , Hamed R. Motahhari , Nima Saber , B. Karl Pustank , Ernesto C. Dela Rosa , Wenqiang Han
发明人： Rahman Khaledi , Forough Farshidi , Hamed R. Motahhari , Nima Saber , B. Karl Pustank , Ernesto C. Dela Rosa , Wenqiang Han
IPC分类号： E21B43/16 , E21B43/24
摘要： The present disclosure relates to production of a bitumen product from a subterranean reservoir with improved processes for solvent recovery at end of production or near end of production (i.e., “late life”) of heavy oil from a solvent-based heavy oil extraction process. The process include converting at least some of the wells in the subterranean reservoir, and injecting gas phase dilution agent into the reservoir, converting at least a portion of the liquid solvent to a gas phase, and recovering, in the vapor phase, at least a portion of the solvent remaining in the reservoir.

3. 发明授权

US09488040B2 Cyclic solvent hydrocarbon recovery process using an advance-retreat movement of the injectant 有权
标题翻译：循环溶剂烃回收过程使用注射剂的提前运动
公开(公告)号：US09488040B2
公开(公告)日：2016-11-08
申请号：US14480105
申请日：2014-09-08
申请人： Tapantosh Chakrabarty , Wenqiang Han
发明人： Tapantosh Chakrabarty , Wenqiang Han
IPC分类号： E21B43/16
CPC分类号： E21B43/16
摘要： Herein is a cyclic solvent-dominated recovery process (CSDRP) for recovering hydrocarbons from an underground reservoir. The cyclic solvent process involves using an injection well to inject a viscosity-reducing solvent into the underground reservoir. Reduced viscosity oil is produced to the surface using the same well used to inject solvent. The process of alternately injecting solvent and producing a solvent/viscous oil blend through the same well continues in a series of cycles until additional cycles are no longer economical. To contact uncovered hydrocarbons between solvent fingers, the injection includes alternating injection and production, for creating an advance-retreat movement.
摘要翻译：这里是用于从地下储层回收碳氢化合物的环状溶剂主导回收方法（CSDRP）。循环溶剂过程包括使用注入井将降粘剂溶剂注入地下储层。使用与注入溶剂相同的孔，向表面产生降粘性油。交替注入溶剂并通过相同的孔产生溶剂/粘稠油混合物的过程继续进行一系列循环，直到另外的循环不再经济。为了接触溶剂指状物之间的未覆盖的碳氢化合物，注射剂包括交替注射和生产，用于产生提前撤退运动。

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