Method Of Injecting Solvent Into An Underground Reservoir To Aid Recovery Of Hydrocarbons
    2.
    发明申请
    Method Of Injecting Solvent Into An Underground Reservoir To Aid Recovery Of Hydrocarbons 审中-公开
    将溶剂注入地下水库以援助碳氢化合物的方法

    公开(公告)号:US20120234535A1

    公开(公告)日:2012-09-20

    申请号:US13361689

    申请日:2012-01-30

    IPC分类号: E21B43/00

    CPC分类号: E21B43/16

    摘要: Described is a method of operating a cyclic solvent-dominated recovery process (CSDRP) for recovering viscous oil from a subterranean reservoir of the viscous oil. The cyclic solvent process involves using an injection well to inject a viscosity-reducing solvent into a subterranean viscous oil 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 wellbore continues in a series of cycles until additional cycles are no longer economical. To improve solvent efficiency, the injection includes at least one restriction duration, where injection is restricted, between two continuous injection periods.

    摘要翻译: 描述了一种操作循环溶剂主导回收方法(CSDRP)的方法,用于从粘性油的地下储层中回收粘性油。 循环溶剂方法包括使用注入井将降粘剂溶剂注入到地下粘性油储层中。 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同一井筒生产溶剂/粘稠油混合物的过程继续进行一系列循环,直到额外的循环不再经济。 为了提高溶剂效率,注射包括在两个连续注射期间之间限制注射的至少一个限制时间。

    Method of Enhancing the Effectiveness of a Cyclic Solvent Injection Process to Recover Hydrocarbons
    5.
    发明申请
    Method of Enhancing the Effectiveness of a Cyclic Solvent Injection Process to Recover Hydrocarbons 审中-公开
    提高循环溶剂注入工艺有效回收碳氢化合物的方法

    公开(公告)号:US20140034305A1

    公开(公告)日:2014-02-06

    申请号:US14110403

    申请日:2012-03-09

    IPC分类号: E21B43/16

    CPC分类号: E21B43/16 C09K8/58 C09K8/594

    摘要: Described is a method of operating a cyclic solvent-dominated recovery process (CSDRP) for recovering viscous oil from a subterranean reservoir of the viscous oil to enhance recovery effectiveness. The cyclic solvent process involves using an injection well to inject a viscosity-reducing solvent into a subterranean viscous oil 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 wellbore continues in a series of cycles until additional cycles are no longer economical. Conventionally, the solvent composition remains constant over time within each injection cycle and among cycles. In the present method, by contrast, the solvent composition is varied over time thereby providing operational benefits as described herein.

    摘要翻译: 描述了一种操作循环溶剂主导的回收方法(CSDRP)的方法,用于从粘性油的地下储层中回收粘性油以提高回收效率。 循环溶剂方法包括使用注入井将降粘剂溶剂注入到地下粘性油储层中。 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同一井筒生产溶剂/粘稠油混合物的过程继续进行一系列循环,直到额外的循环不再经济。 通常,溶剂组成在每个注射循环和循环之间随时间保持恒定。 在本方法中,相比之下,溶剂组成随时间而变化,从而提供如本文所述的操作益处。

    Method and System For Enhancing A Recovery Process Employing One or More Horizontal Wellbores
    6.
    发明申请
    Method and System For Enhancing A Recovery Process Employing One or More Horizontal Wellbores 审中-公开
    用于增强采用一个或多个水平井筒的恢复过程的方法和系统

    公开(公告)号:US20110272153A1

    公开(公告)日:2011-11-10

    申请号:US13132868

    申请日:2009-12-07

    IPC分类号: E21B43/00 E21B43/12

    CPC分类号: E21B43/26 E21B43/2406

    摘要: The present invention relates generally to a system and method for enhancing a recovery process employing one or more substantially horizontal wellbores. More particularly, the present invention relates to a method and system for enhancing a recovery process employing one or more horizontal wellbores by providing a zone of increased permeability in a hydrocarbon reservoir to facilitate vertical movement of flowable materials through the reservoir to thereby enhance the recovery process. In some embodiments, the reservoir comprises one or more vertical permeability impediments.

    摘要翻译: 本发明一般涉及采用一个或多个基本上水平的井筒来增强回收过程的系统和方法。 更具体地说,本发明涉及一种用于通过在烃储层中提供增加的渗透性的区域来促进采用一个或多个水平井筒的回收过程的方法和系统,以促进可流动材料通过储存器的垂直运动,从而增强回收过程 。 在一些实施例中,储存器包括一个或多个垂直磁导率阻挡件。