Reducing aluminum compound precipitation during subterranean formation acidizing
    2.
    发明授权
    Reducing aluminum compound precipitation during subterranean formation acidizing 失效
    在地层酸化期间减少铝化合物的沉淀

    公开(公告)号:US06506711B1

    公开(公告)日:2003-01-14

    申请号:US08492680

    申请日:1995-06-20

    IPC分类号: C09K300

    摘要: Methods and compositions for reducing the precipitation of fluoride compounds following the contact of an aluminum containing subterranean formation with an acid solution containing hydrofluoric acid are provided. In accordance with the methods, a hydroxy carboxylic acid is combined with the hydrofluoric acid solution and the subterranean formation is contacted with the resulting acid solution.

    摘要翻译: 提供了在含铝地层与含有氢氟酸的酸溶液接触之后减少氟化物沉淀的方法和组合物。 根据该方法,将羟基羧酸与氢氟酸溶液合并,使地层与所得酸溶液接触。

    Systems and Methods for Stimulating a Plurality of Zones of a Subterranean Formation
    5.
    发明申请
    Systems and Methods for Stimulating a Plurality of Zones of a Subterranean Formation 审中-公开
    用于刺激地层形成多个区域的系统和方法

    公开(公告)号:US20150129219A1

    公开(公告)日:2015-05-14

    申请号:US14391158

    申请日:2013-06-12

    摘要: Systems and methods for stimulating a plurality of zones of a subterranean formation to increase production of reservoir fluids therefrom. The subterranean formation contains a well that includes a liner that defines a liner conduit, and the systems and methods include stimulating the plurality of zones with a stimulation assembly that is present within the liner conduit without requiring removal of the stimulation assembly from the liner conduit. The stimulation assembly includes a perforation device, which is configured to selectively form one or more perforations in a plurality of portions of the liner, and a resettable sealing device, which is configured to fluidly isolate the plurality of portions of the liner from a plurality of respective downhole portions of the liner. The fluid isolation provides for selective introduction of a stimulant fluid to a selected zone of the subterranean formation that is associated with a corresponding portion of the liner.

    摘要翻译: 用于刺激地下地层的多个区域以增加储层流体的产生的系统和方法。 地下地层包含一个井,该井包括限定衬套导管的衬套,并且系统和方法包括用存在于衬套导管内的刺激组件来刺激多个区域,而不需要从衬管导管移除刺激组件。 刺激组件包括穿孔装置,其被构造成在衬套的多个部分中选择性地形成一个或多个穿孔,以及可重新设置的密封装置,其被配置为将衬垫的多个部分与多个 衬套的相应的井下部分。 流体隔离提供将兴奋剂流体选择性地引入到与衬垫的相应部分相关联的地下地层的选定区域中。

    Methods for breaking viscosified fluids
    6.
    发明授权
    Methods for breaking viscosified fluids 失效
    破碎粘稠液体的方法

    公开(公告)号:US5669447A

    公开(公告)日:1997-09-23

    申请号:US627597

    申请日:1996-04-01

    IPC分类号: C09K8/68 E21B43/26

    摘要: The present invention relates to a method of breaking an aqueous based viscosified fluid containing a breaker comprising an alkali metal chlorite or hypochlorite through use of a breaker activator comprising thioglycolate ion or a compound capable of producing thioglycolate ion in the aqueous fluid. The method is particularly effective in providing a controlled break in a treatment fluid introduced into a subterranean formation having a static temperature in the range of from about 100.degree. F. to about 200.degree. F.

    摘要翻译: 本发明涉及一种通过使用包含巯基乙酸盐离子的破坏剂活化剂或能够在水性流体中产生巯基乙酸盐离子的化合物来破坏包含碱金属亚氯酸盐或次氯酸盐的破碎剂的含水基粘稠流体的方法。 该方法在引入静态温度在约100°F至约200°F的地层中的处理流体中提供受控断裂特别有效。

    Methods for breaking viscosified fluids
    7.
    发明授权
    Methods for breaking viscosified fluids 失效
    破碎粘稠液体的方法

    公开(公告)号:US5669446A

    公开(公告)日:1997-09-23

    申请号:US625957

    申请日:1996-04-01

    IPC分类号: C09K8/62 C09K8/68 E21B43/26

    摘要: The present invention relates to a method of breaking an aqueous based viscosified fluid having potassium ions present therein with a breaker comprising an alkali metal chlorite or hypochlorite through use of a breaker activator comprising a source of ammonium ion in the aqueous fluid. The method is particularly effective in providing a controlled break in a treatment fluid introduced into a subterranean formation having a static temperature in the range of from about 100.degree. F. to about 300.degree. F. In some instances, a second breaker activator comprising a source of thioglycolate ion also may be admixed with the viscosified fluid to further accelerate breaker activation at temperatures below about 200.degree. F.

    摘要翻译: 本发明涉及一种通过使用包含铵离子源在水性流体中的破碎活化剂来破坏其中存在钾离子的含水基粘稠流体的方法,所述破碎剂包含碱金属亚氯酸盐或次氯酸盐。 该方法在引入到具有约100°F至约300°F的静态温度的地下地层中的处理流体中提供受控断裂特别有效。在一些情况下,第二断路器活化剂包括源 的巯基乙酸盐离子也可以与粘稠流体混合,以在低于约200°F的温度进一步加速断路器的活化。

    Systems and methods for stimulating a plurality of zones of a subterranean formation
    8.
    发明授权
    Systems and methods for stimulating a plurality of zones of a subterranean formation 有权
    用于刺激地下地层的多个区域的系统和方法

    公开(公告)号:US09328598B2

    公开(公告)日:2016-05-03

    申请号:US14391158

    申请日:2013-06-12

    摘要: Systems and methods for stimulating a plurality of zones of a subterranean formation to increase production of reservoir fluids therefrom. The subterranean formation contains a well that includes a liner that defines a liner conduit, and the systems and methods include stimulating the plurality of zones with a stimulation assembly that is present within the liner conduit without requiring removal of the stimulation assembly from the liner conduit. The stimulation assembly includes a perforation device, which is configured to selectively form one or more perforations in a plurality of portions of the liner, and a resettable sealing device, which is configured to fluidly isolate the plurality of portions of the liner from a plurality of respective downhole portions of the liner. The fluid isolation provides for selective introduction of a stimulant fluid to a selected zone of the subterranean formation that is associated with a corresponding portion of the liner.

    摘要翻译: 用于刺激地下地层的多个区域以增加储层流体的产生的系统和方法。 地下地层包含一个井,该井包括限定衬套导管的衬套,并且系统和方法包括用存在于衬套导管内的刺激组件来刺激多个区域,而不需要从衬管导管移除刺激组件。 刺激组件包括穿孔装置,其被构造成在衬套的多个部分中选择性地形成一个或多个穿孔,以及可重新设置的密封装置,其被配置为将衬垫的多个部分与多个 衬套的相应的井下部分。 流体隔离提供将兴奋剂流体选择性地引入到与衬垫的相应部分相关联的地下地层的选定区域中。

    Methods For Establishing A Subsurface Fracture Network
    10.
    发明申请
    Methods For Establishing A Subsurface Fracture Network 审中-公开
    建立地下断裂网络的方法

    公开(公告)号:US20130220604A1

    公开(公告)日:2013-08-29

    申请号:US13825796

    申请日:2011-08-29

    IPC分类号: E21B43/26

    CPC分类号: E21B43/26 E21B49/006

    摘要: A method of creating a network of fractures in a reservoir is provided. The method includes designing a desired fracture network system, and determining required in situ stresses to create the desired fracture network within the reservoir. The method further includes designing a layout of wells to alter the in situ stresses within the stress field, and then injecting a fracturing fluid under pressure into the reservoir to create an initial set of fractures within the reservoir. The method also includes monitoring the in situ stresses within the stress field, and modifying the in situ stresses within the stress field. The method then includes injecting a fracturing fluid under pressure into the reservoir in order to expand upon the initial set of fractures and to create the network of fractures. A method for producing hydrocarbons from a subsurface formation is also provided herein, wherein a fracture network is created from a single, deviated wellbore production.

    摘要翻译: 提供了一种在储层中形成骨折网络的方法。 该方法包括设计所需的裂缝网络系统,并确定所需的原位应力以在储层内产生所需的裂缝网络。 该方法还包括设计井的布局以改变应力场内的原位应力,然后将压力下的压裂流体注入储层以在储层内产生初始的裂缝。 该方法还包括监测应力场内的原位应力,以及改变应力场内的原位应力。 该方法然后包括在压力下将压裂流体注入到储层中,以便在初始的裂缝集合上扩展并产生断裂网络。 本文还提供了一种从地下地层生产烃的方法,其中断裂网络是从单一偏离的井筒产生产生的。