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1. 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.

2. 发明授权

US10487636B2 Enhanced methods for recovering viscous hydrocarbons from a subterranean formation as a follow-up to thermal recovery processes 有权
公开(公告)号：US10487636B2
公开(公告)日：2019-11-26
申请号：US16036400
申请日：2018-07-16
申请人： Hamed R. Motahhari , Rahman Khaledi , Nima Saber , James A. Dunn
发明人： Hamed R. Motahhari , Rahman Khaledi , Nima Saber , James A. Dunn
IPC分类号： E21B43/16 , E21B43/241
CPC分类号： E21B43/241 , E21B43/16 , E21B43/168
摘要： Enhanced methods for recovering viscous hydrocarbons from a subterranean formation as a follow-up to thermal recovery processes. The methods include injecting a solvent flood vapor stream into a first thermal chamber, which extends within the subterranean formation, via a solvent flood injection well that extends within the first thermal chamber. The injecting includes injecting to generate solvent flood-mobilized viscous hydrocarbons within the subterranean formation. The methods also include, at least partially concurrently with the injecting, producing the solvent flood-mobilized viscous hydrocarbons from a second thermal chamber, which extends within the subterranean formation, via a solvent flood production well that extends within the second thermal chamber. The first thermal chamber was formed via a first thermal recovery process, and the second thermal chamber was formed via a second thermal recovery process, and the first thermal chamber and the second thermal chamber are in fluid communication with one another.

3. 发明申请

US20190032462A1 ENHANCED METHODS FOR RECOVERING VISCOUS HYDROCARBONS FROM A SUBTERRANEAN FORMATION AS A FOLLOW-UP TO THERMAL RECOVERY PROCESSES 审中-公开
公开(公告)号：US20190032462A1
公开(公告)日：2019-01-31
申请号：US16036400
申请日：2018-07-16
申请人： Hamed R. Motahhari , Rahman Khaledl , Nima Saber , James A. Dunn
发明人： Hamed R. Motahhari , Rahman Khaledl , Nima Saber , James A. Dunn
IPC分类号： E21B43/241 , E21B43/16
摘要： Enhanced methods for recovering viscous hydrocarbons from a subterranean formation as a follow-up to thermal recovery processes. The methods include injecting a solvent flood vapor stream into a first thermal chamber, which extends within the subterranean formation, via a solvent flood injection well that extends within the first thermal chamber. The injecting includes injecting to generate solvent flood-mobilized viscous hydrocarbons within the subterranean formation. The methods also include, at least partially concurrently with the injecting, producing the solvent flood-mobilized viscous hydrocarbons from a second thermal chamber, which extends within the subterranean formation, via a solvent flood production well that extends within the second thermal chamber. The first thermal chamber was formed via a first thermal recovery process, and the second thermal chamber was formed via a second thermal recovery process, and the first thermal chamber and the second thermal chamber are in fluid communication with one another.

4. 发明申请

US20140174744A1 Systems and Methods For Pressure-Cycled Stimulation During Gravity Drainage Operations 审中-公开
标题翻译：重力排水作业下压力循环刺激的系统与方法
公开(公告)号：US20140174744A1
公开(公告)日：2014-06-26
申请号：US14086747
申请日：2013-11-21
申请人： Thomas J. Boone , Nima Saber
发明人： Thomas J. Boone , Nima Saber
IPC分类号： E21B43/24 , E21B44/00
CPC分类号： E21B43/2406 , E21B43/16 , E21B43/2408 , E21B44/00
摘要： Systems and methods for pressure-cycled stimulation during gravity drainage operations. These systems and methods include increasing a pressure within a stimulation well that extends within a subterranean formation and subsequently decreasing the pressure within the stimulation well to increase production of viscous hydrocarbons from a production well. The systems and methods include repeating the increasing and the decreasing for a plurality of stimulation cycles and producing viscous hydrocarbons from the subterranean formation during the increasing, the decreasing, and the repeating. The increasing may include increasing a reservoir pressure within the subterranean formation to a pressure that is greater than a bubble point pressure of the viscous hydrocarbons, and the decreasing may include decreasing the reservoir pressure to a pressure that is less than the bubble point pressure of the viscous hydrocarbons.
摘要翻译：在重力排水作业期间进行压力循环刺激的系统和方法。这些系统和方法包括增加在地下地层内延伸的刺激井内的压力，随后降低刺激井内的压力，以增加来自生产井的粘性烃的产生。系统和方法包括在增加，减少和重复期间重复多个刺激循环的增加和减少，并从地层产生粘性烃。增加可以包括将地层内的储层压力增加到大于粘性烃的起泡压力的压力，并且减小可以包括将储层压力降低到小于粘稠的碳氢化合物。

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