Heterogeneous proppant placement in a fracture with removable channelant fill
    2.
    发明授权
    Heterogeneous proppant placement in a fracture with removable channelant fill 有权
    不均匀的支撑剂放置在具有可移除的通道填充物的断裂中

    公开(公告)号:US08636065B2

    公开(公告)日:2014-01-28

    申请号:US13097263

    申请日:2011-04-29

    CPC classification number: E21B43/267 C09K8/665 C09K8/68 C09K8/72 C09K8/80

    Abstract: A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.

    Abstract translation: 公开了一种在地下裂缝中布置非均相支撑剂的方法。 该方法包括将包括支撑剂(16)和称为通道(18)的支撑剂间隔填料的井处理流体通过井筒(10)注入到裂缝(20)中,将支撑剂不均匀地放置在多个支撑剂团簇 或通过所述通道(24)间隔开的岛(22),以及去除所述通道填料(24)以形成围绕所述柱(28)的开放通道(26),用于流体从所述地层(14)穿过所述断裂 )朝向井眼(10)。 支撑剂和输送管可以在井内处理液中分离,或在放置在裂缝中时分离。 通道剂可以是可溶解的颗粒,最初在将支撑剂置于断裂中时充当填料,然后溶解以留下支撑剂柱之间的流动通道。 井处理流体可以包括纤维以提供支撑剂的增强和固结,并且还可以或另外地抑制支撑剂在处理流体中的沉降。

    SELECTIVE FRACTURE FACE DISSOLUTION
    3.
    发明申请
    SELECTIVE FRACTURE FACE DISSOLUTION 审中-公开
    选择性破裂面部溶解

    公开(公告)号:US20130192839A1

    公开(公告)日:2013-08-01

    申请号:US13565542

    申请日:2012-08-02

    CPC classification number: E21B43/26 C09K8/68 C09K8/72 C09K8/74

    Abstract: A method is given for acid fracturing a subterranean formation for improving the flow of fluids. The principal source, optionally the sole source, of the acid is a solid acid-precursor, optionally injected with an additional solid that is inert and that masks a portion of the newly created fracture faces so that the fracture face etching by the acid is not uniform. The method ensures a good flow path for fluids between the fracture tip and the wellbore.

    Abstract translation: 给出了一种用于酸压裂地下地层以改善流体流动的方法。 酸的主要来源,任选地唯一的来源是固体酸前体,任选地注入惰性的另外的固体,并且掩盖新生成的裂缝面的一部分,使得酸的断裂面蚀刻不是 制服。 该方法确保了在裂缝尖端和井筒之间的流体的良好流动路径。

    Method and apparatus of reservoir stimulation while running casing
    6.
    发明授权
    Method and apparatus of reservoir stimulation while running casing 有权
    储罐刺激方法和装置运行套管

    公开(公告)号:US07909096B2

    公开(公告)日:2011-03-22

    申请号:US12035953

    申请日:2008-02-22

    CPC classification number: E21B43/26 E21B33/124 E21B43/10 E21B47/12

    Abstract: A method for stimulating a reservoir formation while running a casing string into the wellbore includes the steps of: connecting a stimulation assembly to a casing string, the stimulation assembly including a packer actuator in operational connection with a packer and a logging sensor; running the casing string into the wellbore and positioning the logging assembly proximate to a selected reservoir formation; logging the reservoir formation; positioning the stimulation assembly proximate to the reservoir formation; actuating the packer to substantially isolate the reservoir formation from the wellbore; performing the stimulation operation; releasing the packers from sealing engagement with the wellbore; positioning the logging assembly proximate to the reservoir formation; logging the reservoir formation; and disconnecting the stimulation assembly from the casing string.

    Abstract translation: 一种用于在将套管柱运行到井筒中时刺激储层形成的方法包括以下步骤:将刺激组件连接到套管柱,刺激组件包括与封隔器和测井传感器操作连接的封隔器致动器; 将套管柱运行到井筒中并将测井组件定位在靠近所选择的储层结构处; 记录油藏形成; 将刺激组件定位在靠近储层形成处; 致动封隔器以将储层形成基本上与井筒隔离; 执行刺激操作; 释放封隔器与井眼密封接合; 将测井组件放置在靠近储层形成处; 记录油藏形成; 并且将刺激组件与套管柱断开。

    Reservoir Stimulation While Running Casing
    7.
    发明申请
    Reservoir Stimulation While Running Casing 有权
    水箱刺激运动套管

    公开(公告)号:US20080210422A1

    公开(公告)日:2008-09-04

    申请号:US12035953

    申请日:2008-02-22

    CPC classification number: E21B43/26 E21B33/124 E21B43/10 E21B47/12

    Abstract: A method for stimulating a reservoir formation while running a casing string into the wellbore includes the steps of: connecting a stimulation assembly to a casing string, the stimulation assembly including a packer actuator in operational connection with a packer and a logging sensor; running the casing string into the wellbore and positioning the logging assembly proximate to a selected reservoir formation; logging the reservoir formation; positioning the stimulation assembly proximate to the reservoir formation; actuating the packer to substantially isolate the reservoir formation from the wellbore; performing the stimulation operation; releasing the packers from sealing engagement with the wellbore; positioning the logging assembly proximate to the reservoir formation; logging the reservoir formation; and disconnecting the stimulation assembly from the casing string.

    Abstract translation: 一种用于在将套管柱运行到井筒中时刺激储层形成的方法包括以下步骤:将刺激组件连接到套管柱,刺激组件包括与封隔器和测井传感器操作连接的封隔器致动器; 将套管柱运行到井筒中并将测井组件定位在靠近所选择的储层结构处; 记录油藏形成; 将刺激组件定位在靠近储层形成处; 致动封隔器以将储层形成基本上与井筒隔离; 执行刺激操作; 释放封隔器与井眼密封接合; 将测井组件放置在靠近储层形成处; 记录油藏形成; 并且将刺激组件与套管柱断开。

    Heterogeneous Proppant Placement in a Fracture with Removable Channelant Fill
    8.
    发明申请
    Heterogeneous Proppant Placement in a Fracture with Removable Channelant Fill 有权
    在可拆卸的渠道填充物的断裂中的异质支撑剂放置

    公开(公告)号:US20080135242A1

    公开(公告)日:2008-06-12

    申请号:US11608686

    申请日:2006-12-08

    Abstract: A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.

    Abstract translation: 公开了一种在地下裂缝中布置非均相支撑剂的方法。 该方法包括将包括支撑剂(16)和称为通道(18)的支撑剂间隔填料的井处理流体通过井筒(10)注入到裂缝(20)中,将支撑剂不均匀地放置在多个支撑剂团簇 或通过所述通道(24)间隔开的岛(22),以及去除所述通道填料(24)以形成围绕所述柱(28)的开放通道(26),用于流体从所述地层(14)穿过所述断裂 )朝向井眼(10)。 支撑剂和输送管可以在井内处理液中分离,或在放置在裂缝中时分离。 通道剂可以是可溶解的颗粒,最初在将支撑剂置于断裂中时充当填料,然后溶解以留下支撑剂柱之间的流动通道。 井处理流体可以包括纤维以提供支撑剂的增强和固结,并且还可以或另外地抑制支撑剂在处理流体中的沉降。

    Solid Sandstone Dissolver
    9.
    发明申请
    Solid Sandstone Dissolver 有权
    固体砂岩溶解剂

    公开(公告)号:US20080006409A1

    公开(公告)日:2008-01-10

    申请号:US11858266

    申请日:2007-09-20

    CPC classification number: C09K8/62

    Abstract: A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.

    Abstract translation: 公开了一种干固体组合物,当加入到含水液体中时,提供可用于砂岩酸压裂的浆料。 该浆液在井下产生氢氟酸以蚀刻产生的砂岩断裂面。 组合物的化学和物理性质导致断裂面的非常不均匀的蚀刻,增强了最终断裂的流体导电性。 任选地,惰性掩蔽材料可以包括在干燥组合物中或加入到浆料中,以增加蚀刻的不均匀性并进一步提高流体导电性。

Patent Agency Ranking