METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION
    3.
    发明申请
    METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION 有权
    液压破碎方法

    公开(公告)号:US20120125618A1

    公开(公告)日:2012-05-24

    申请号:US13300297

    申请日:2011-11-18

    IPC分类号: E21B43/26

    摘要: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids.

    摘要翻译: 本发明提供了经济有效的水力压裂地下地层的方法,其确保水力破坏导电性的改善,因为在整个长度上形成均匀地放置在裂缝中的强支撑剂簇。 这些方法之一包括:第一阶段包括将压裂流体注入钻孔中,所述流体含有增稠剂以在地层中产生断裂; 以及第二阶段,包括将支撑剂引入注入的压裂流体中以防止所产生的断裂的闭合,并且还包括将试剂引入压裂流体中,以在所产生的裂缝中形成支撑剂簇并形成用于流动地层流体的通道。

    METHOD FOR HYDRAULIC FRACTURING OF SUBTERRANEAN FORMATION

    公开(公告)号:US20090044945A1

    公开(公告)日:2009-02-19

    申请号:US12162462

    申请日:2006-01-27

    IPC分类号: E21B43/26

    摘要: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid. Another method comprises: a first stage that involves injection of said fracturing fluid into a borehole, and a second stage that involves introduction of proppant into the injected fracturing fluid and further, involving periodic introduction of an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids. Still another method comprises: a first stage that involves injection of a fracturing fluid into a borehole; a second stage that involves continuous introduction of a proppant into the injected fracturing fluid, and a third stage that involves injection of a lower-viscosity, in comparison with fracturing, fluid into the fracturing fluid, the lower-viscosity fluid, owing to the difference in viscosity compared to the fracturing fluid, penetrating into the fracturing fluid in the form of intrusions that divide the proppant into discrete clusters to form channels between them through which formation fluids to pass.

    Real-Time Automated Heterogeneous Proppant Placement
    5.
    发明申请
    Real-Time Automated Heterogeneous Proppant Placement 有权
    实时自动异质支撑剂放置

    公开(公告)号:US20080149329A1

    公开(公告)日:2008-06-26

    申请号:US11613693

    申请日:2006-12-20

    IPC分类号: E21B43/267

    CPC分类号: E21B43/267

    摘要: A system and a method for heterogeneous proppant placement in a fracture (12) in a subterranean formation (18) are disclosed. The system includes a delivery system (10) for delivering proppant and treatment fluid to the fracture (12), a sensor (20) for measuring geometry of the fracture and a computer (24) in communication with the sensor (20). The computer (24) includes a software tool for real-time design of a model (38) for heterogeneous proppant placement in the fracture (12) based on data from the sensor (20) measurements and a software tool for developing and updating a proppant placement schedule (42) for delivering the proppant and treatment fluid to the fracture (12) corresponding to the model. A control link between the computer (24) and the delivery system (10) permits the delivery system (10) to adjust the delivery of the proppant and treatment fluid according the updated proppant placement schedule.

    摘要翻译: 公开了一种用于在地层(18)中的裂缝(12)中的异质支撑剂放置的系统和方法。 该系统包括用于将支撑剂和处理流体输送到裂缝(12)的传送系统(10),用于测量裂缝的几何形状的传​​感器(20)和与传感器(20)连通的计算机(24)。 计算机(24)包括用于实时设计模型(38)的软件工具,用于基于来自传感器(20)测量的数据和用于开发和更新支撑剂的软件工具来在骨折(12)中布置异质支撑剂的模型(38) (42),用于将支撑剂和处理流体输送到对应于模型的断裂(12)。 计算机(24)和输送系统(10)之间的控制连接允许输送系统(10)根据更新的支撑剂放置计划来调节支撑剂和处理流体的输送。

    Method for hydraulic fracturing of subterranean formation
    6.
    发明授权
    Method for hydraulic fracturing of subterranean formation 有权
    地下水力压裂方法

    公开(公告)号:US08584755B2

    公开(公告)日:2013-11-19

    申请号:US13300297

    申请日:2011-11-18

    IPC分类号: E21B43/267

    摘要: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids.

    摘要翻译: 本发明提供了经济有效的水力压裂地下地层的方法,其确保水力破坏导电性的改善,因为在整个长度上形成均匀地放置在裂缝中的强支撑剂簇。 这些方法之一包括:第一阶段包括将压裂流体注入钻孔中,所述流体含有增稠剂以在地层中产生断裂; 以及第二阶段,包括将支撑剂引入注入的压裂流体中以防止所产生的断裂的闭合,并且还包括将试剂引入压裂流体中,以在所产生的裂缝中形成支撑剂簇并形成用于流动地层流体的通道。

    Real-time automated heterogeneous proppant placement
    7.
    发明授权
    Real-time automated heterogeneous proppant placement 有权
    实时自动化异种支撑剂放置

    公开(公告)号:US07451812B2

    公开(公告)日:2008-11-18

    申请号:US11613693

    申请日:2006-12-20

    IPC分类号: E21B43/267

    CPC分类号: E21B43/267

    摘要: A system and a method for heterogeneous proppant placement in a fracture (12) in a subterranean formation (18) are disclosed. The system includes a delivery system (10) for delivering proppant and treatment fluid to the fracture (12), a sensor (20) for measuring geometry of the fracture and a computer (24) in communication with the sensor (20). The computer (24) includes a software tool for real-time design of a model (38) for heterogeneous proppant placement in the fracture (12) based on data from the sensor (20) measurements and a software tool for developing and updating a proppant placement schedule (42) for delivering the proppant and treatment fluid to the fracture (12) corresponding to the model. A control link between the computer (24) and the delivery system (10) permits the delivery system (10) to adjust the delivery of the proppant and treatment fluid according the updated proppant placement schedule.

    摘要翻译: 公开了一种用于在地层(18)中的裂缝(12)中的异质支撑剂放置的系统和方法。 该系统包括用于将支撑剂和处理流体输送到裂缝(12)的传送系统(10),用于测量裂缝的几何形状的传​​感器(20)和与传感器(20)连通的计算机(24)。 计算机(24)包括用于实时设计模型(38)的软件工具,用于基于来自传感器(20)测量的数据和用于开发和更新支撑剂的软件工具来在骨折(12)中布置异质支撑剂的模型(38) (42),用于将支撑剂和处理流体输送到对应于模型的断裂(12)。 计算机(24)和输送系统(10)之间的控制连接允许输送系统(10)根据更新的支撑剂放置计划来调节支撑剂和处理流体的输送。

    Method for hydraulic fracturing of subterranean formation
    8.
    发明授权
    Method for hydraulic fracturing of subterranean formation 有权
    地下水力压裂方法

    公开(公告)号:US08061424B2

    公开(公告)日:2011-11-22

    申请号:US12162462

    申请日:2006-01-27

    IPC分类号: E21B43/267

    摘要: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracturcconductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage that involves injection into a borehole of fracturing fluid containing thickeners to create a fracture in the formation; and a second stage that involves periodic introduction of proppant into the injected fracturing fluid to supply the proppant into a created fracture, to form proppant clusters within the fracture to prevent fracture closure and channels for flowing formation fluids between the clusters, wherein the second stage or its sub-stages involve additional introduction of either a reinforcing or consolidation material or both, thus increasing the strength of the proppant clusters formed into the fracture fluid.

    摘要翻译: 本发明提供了经济有效的水力压裂地下地层的方法,其确保了水力分解导电性的改善,因为在其整个长度上形成均匀地放置在裂缝中的强支撑剂簇。 这些方法之一包括:第一阶段,其涉及向包含增稠剂的压裂流体的井眼中注入以在地层中产生断裂的第一阶段; 以及第二阶段,其涉及将支撑剂定期引入注入的压裂流体中,以将支撑剂供应到所产生的裂缝中,以在裂缝内形成支撑剂簇以防止断裂闭合,以及用于在地层之间流动地层流体的通道,其中第二阶段或 其子阶段包括另外引入增强或固结材料或两者,从而增加形成在断裂流体中的支撑剂团簇的强度。

    Technique to limit proppant carry-over out of fracture
    9.
    发明授权
    Technique to limit proppant carry-over out of fracture 有权
    限制支撑剂结转的技术

    公开(公告)号:US07806181B2

    公开(公告)日:2010-10-05

    申请号:US11942304

    申请日:2007-11-19

    IPC分类号: E21B43/267

    CPC分类号: E21B43/267 C09K8/80

    摘要: The invention relates to methods to stimulate formation production when oil recovering. Reducing cost and simplifying the manufacture of the propping material to prevent proppant carrying-over were achieved owing to the injection of the hydraulic fracturing liquid with a propping agent containing a propping material as randomly cut particles of the polymers reworked and being in irregular shapes with the maximum-to minimum size ratio more than 5. A propping material should be a material being resistant to hydraulic fracturing liquid, oil, gas condensate and oil-containing liquids, and salt water in the range of temperatures 40 to 140° C., plastic within pressure range of 7 atm to 700 atm, and having Young's modulus within 100 MPa to 20000 MPa. The propping material thickness can be within 10 to 500 micrometers. The propping material can be of flake-like, lamellar, and chip-like shapes or their mixture. The propping material content of the propping agent should be 0.1 to 30% by weight of the total propping agent mixture with the propping material. The propping material should be used for the hydraulic fracturing phase or at the end propping phase combined with portion of 10 to 50% of the total weight of the propping agent with the propping material.

    摘要翻译: 本发明涉及当油回收时刺激地层生产的方法。 由于采用含有支撑材料的支撑剂注入水力压裂液,因此降低了成本并简化了支撑材料的制造以防止支撑剂的携带,这些支撑剂被随机切割而成的被重复加工的聚合物的颗粒并且具有不规则形状 最大至最小尺寸比大于5.支撑材料应为耐水解压裂液,油,气体冷凝物和含油液体以及在40至140℃温度范围内的盐水的材料,塑料 在7atm〜700atm的压力范围内,杨氏模量在100MPa〜20000MPa的范围内。 支撑材料厚度可以在10至500微米之内。 支撑材料可以是片状的,片状的和片状的形状或它们的混合物。 支撑剂的支撑材料含量应为支撑材料的总支撑剂混合物的0.1〜30重量%。 支撑材料应用于水力压裂阶段或末端支撑阶段,结合支撑材料与支撑剂总重量的10〜50%。