Methods for treating intervals of a subterranean formation having variable permeability
    4.
    发明授权
    Methods for treating intervals of a subterranean formation having variable permeability 有权
    用于处理具有可变渗透性的地层的间隔的方法

    公开(公告)号:US07730950B2

    公开(公告)日:2010-06-08

    申请号:US11655443

    申请日:2007-01-19

    IPC分类号: E21B43/16 E21B33/13

    摘要: Methods of using water-soluble hydrophobically modified polymers to treat intervals of a subterranean formation having variable permeabilities. An exemplary embodiment provides a method of treating an interval of a subterranean formation having a permeability that varies. The method comprises contacting the interval with a water-soluble hydrophobically modified polymer capable of selectively reducing the effective permeability of the interval to water without a comparable reduction of the effective permeability of the interval to hydrocarbons. The hydrophobically modified polymer modifies the interval to have a more uniform permeability without substantially preventing the flow of fluids through the interval. The method further comprises introducing a treatment fluid into the interval. The more uniform permeability of the interval allows for a more uniform treatment of the interval by the treatment fluid than would be allowed without treatment of the interval with the hydrophobically modified polymer.

    摘要翻译: 使用水溶性疏水改性聚合物处理具有可变渗透性的地层的间隔的方法。 一个示例性实施例提供了一种处理具有变化的渗透性的地层的间隔的方法。 该方法包括使该间隔与水溶性疏水改性聚合物接触,所述聚合物能够选择性地将间隔物的有效渗透性降低至水,而不会将烃区间的有效渗透率相当地降低。 疏水改性的聚合物将间隔改变为具有更均匀的渗透性,而基本上不会阻止流体流过间隔。 该方法还包括将处理流体引入该间隔。 间隔的更均匀的渗透性允许处理流体对间隔进行更均匀的处理,而不用处理与疏水改性的聚合物的间隔。

    Methods and compositions for forming permeable cement sand screens in well bores
    5.
    发明授权
    Methods and compositions for forming permeable cement sand screens in well bores 有权
    在井眼中形成渗透性水泥砂筛的方法和组合物

    公开(公告)号:US06202751B1

    公开(公告)日:2001-03-20

    申请号:US09627264

    申请日:2000-07-28

    IPC分类号: E21B33138

    CPC分类号: E21B43/08

    摘要: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.

    摘要翻译: 提供了在井眼中形成渗透性水泥砂筛的方法和组合物。 组合物基本上由水硬性水泥,酸溶性颗粒固体,液体烃溶剂可溶性颗粒固体,含有内部破碎剂的颗粒状交联凝胶组成,其在时间使凝胶破裂成液体后,存在于 足以形成浆料,以足以形成泡沫的量存在的气体和发泡和泡沫稳定表面活性剂的混合物。

    Method for enhancing fluid loss control in subterranean formation
    6.
    发明授权
    Method for enhancing fluid loss control in subterranean formation 失效
    用于增强地层中流体损失控制的方法

    公开(公告)号:US5680900A

    公开(公告)日:1997-10-28

    申请号:US685315

    申请日:1996-07-23

    摘要: The present invention provides a method of controlling fluid loss to a permeable formation penetrated by a wellbore. A novel fluid loss agent is prepared by forming a crosslinked polymer gel which then is sheared to break the gel into discrete particles of a particular size range. A slurry then is formed of the particles by dispersing the particles in an aqueous fluid having a density similar to that of the gel particles. The slurry then is introduced into contact with the permeable formation and a filter cake of the particles is formed upon contact with the formation and loss of the slurrying fluid to the formation. The filter cake provides further fluid loss control to the permeable formation.

    摘要翻译: 本发明提供了一种控制由井筒穿透的可渗透地层的流体损失的方法。 通过形成交联聚合物凝胶制备新的流体损失剂,然后将其剪切以将凝胶破坏成特定尺寸范围的离散颗粒。 然后通过将颗粒分散在具有与凝胶颗粒的密度相似的密度的水性流体中,由颗粒形成浆料。 然后将浆料引入与可渗透地层接触,并且在与地层的形成和制浆流体的损失接触时形成颗粒的滤饼。 滤饼为可渗透地层提供进一步的流体损失控制。

    Well treating methods and devices using particulate blends
    7.
    发明授权
    Well treating methods and devices using particulate blends 失效
    使用颗粒混合物的良好处理方法和装置

    公开(公告)号:US5492178A

    公开(公告)日:1996-02-20

    申请号:US323175

    申请日:1994-12-15

    摘要: Fracturing, frac-pack, and gravel packing procedures are provided which utilize a treating composition comprising a carrier fluid and a particulate blend. The particulate blend consists essentially of a large particulate material and a small particulate material. The large particulate material consists essentially of particles smaller than about 4 mesh but not smaller than about 40 mesh. The small particulate material consists essentially of particles smaller than about 16 mesh but not smaller than about 100 mesh. The small particulate material is present in the particulate blend in an amount in the range of from about 5% to about 60% by weight based on the amount of the large particulate material present in the particulate blend. A prepacked screening device including a large particulate/small particulate blend of the type just described is also provided.

    摘要翻译: 提供了利用包含载体流体和颗粒混合物的处理组合物的压裂,压裂包装和砾石填充程序。 颗粒混合物基本上由大颗粒材料和小颗粒材料组成。 大颗粒材料基本上由小于约4目但不小于约40目的颗粒组成。 小颗粒材料基本上由小于约16目但不小于约100目的颗粒组成。 基于颗粒混合物中存在的大颗粒材料的量,小颗粒材料以约5重量%至约60重量%的量存在于颗粒混合物中。 还提供了包括刚刚描述的类型的大颗粒/小颗粒混合物的预包装筛选装置。

    Methods and compositions for stabilizing formation fines and sand
    8.
    发明授权
    Methods and compositions for stabilizing formation fines and sand 有权
    用于稳定地层细沙和沙粒的方法和组合物

    公开(公告)号:US08167045B2

    公开(公告)日:2012-05-01

    申请号:US12386293

    申请日:2009-04-16

    IPC分类号: E21B33/13 E21B43/22

    摘要: Methods comprising providing a polymerizable treatment fluid that comprises furfuryl alcohol monomer dispersed in an aqueous base fluid; introducing the polymerizable treatment fluid to a portion of a subterranean formation; and allowing the polymerizable treatment fluid to polymerize in the subterranean formation. The methods may include the use of contacting the furfuryl alcohol with an initiator to begin polymerization.

    摘要翻译: 包括提供包含分散在含水基体液中的糠醇单体的可聚合处理流体的方法; 将可聚合处理流体引入地下地层的一部分; 并使可聚合处理液在地层中聚合。 所述方法可以包括使用糠醇与引发剂接触以开始聚合。

    Methods for controlling water and particulate production
    9.
    发明授权
    Methods for controlling water and particulate production 有权
    控制水和颗粒物生产的方法

    公开(公告)号:US06978836B2

    公开(公告)日:2005-12-27

    申请号:US10444408

    申请日:2003-05-23

    CPC分类号: C09K8/5756 C09K8/512

    摘要: The present invention provides methods of reducing the production of both water and particulates from subterranean formations; the methods are particularly useful in conjunction with subterranean formations surrounding wellbores and fractures. The methods comprise the steps of applying to a subterranean formation a pre-flush fluid, applying aqueous surfactant fluid, applying a low-viscosity consolidating fluid, and applying an after-flush fluid.

    摘要翻译: 本发明提供了减少来自地下地层的水和颗粒物的产生的方法; 该方法特别适用于围绕井筒和裂缝的地下地层。 所述方法包括以下步骤:向地下地层施加预冲洗流体,施加表面活性剂水流体,施加低粘度固结流体,以及施加后冲洗流体。

    Compositions and applications of resins in treating subterranean formations
    10.
    发明申请
    Compositions and applications of resins in treating subterranean formations 有权
    树脂在处理地下地层中的组成和应用

    公开(公告)号:US20080135251A1

    公开(公告)日:2008-06-12

    申请号:US12070301

    申请日:2008-02-15

    IPC分类号: E21B33/138

    摘要: Methods are provided that include a method comprising providing a resin composition comprising a resin and at least a plurality of filler particulates and introducing the resin composition into a well bore which penetrates at least a portion of a subterranean formation, wherein the resin composition does not form proppant aggregates or proppant particulates. In some embodiments, the resin composition may be introduced into the subterranean formation at a pressure below the fracture pressure of the subterranean formation. Additional methods and compositions are also provided.

    摘要翻译: 提供了包括提供包含树脂和至少多个填料颗粒的树脂组合物并将树脂组合物引入渗透至少一部分地层的井眼的方法的方法,其中树脂组合物不形成 支撑剂骨料或支撑剂颗粒。 在一些实施方案中,树脂组合物可以在低于地层的断裂压力的压力下引入地下地层。 还提供了另外的方法和组合物。