METHODS FOR TREATING INTERVALS OF A SUBTERRANEAN FORMATION HAVING VARIABLE PERMEABILITY
    3.
    发明申请
    METHODS FOR TREATING INTERVALS OF A SUBTERRANEAN FORMATION HAVING VARIABLE PERMEABILITY 审中-公开
    用于处理具有可变渗透性的亚热带形成区间的方法

    公开(公告)号:WO2008087391A1

    公开(公告)日:2008-07-24

    申请号:PCT/GB2008/000124

    申请日:2008-01-15

    CPC classification number: C09K8/56 C09K8/5083 C09K8/5753

    Abstract: 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.

    Abstract translation: 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的聚合物接触,所述聚合物能够选择性地将间隔的有效渗透率降低至水,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。

    VISCOSIFIERS AND FILTRATION CONTROL AGENTS FOR USE IN HIGH TEMPERATURE SUBTERRANEAN OPERATIONS
    6.
    发明申请
    VISCOSIFIERS AND FILTRATION CONTROL AGENTS FOR USE IN HIGH TEMPERATURE SUBTERRANEAN OPERATIONS 审中-公开
    用于高温次生作业的粘度计和过滤控制剂

    公开(公告)号:WO2016167787A1

    公开(公告)日:2016-10-20

    申请号:PCT/US2015/026299

    申请日:2015-04-17

    Abstract: Treatment fluids comprising viscosifiers and filtration control agents that may be useful at high temperatures and methods for using the treatment fluids to treat subterranean formations are provided herein. A method of treating a subterranean formation comprising: providing a treatment fluid comprising: an aqueous base fluid, a tetrapolymer that comprises at least one monomer, and a graft copolymer that comprises: a backbone comprising a lignite, and at least one monomer; and introducing the treatment fluid into a wellbore penetrating the subterranean formation.

    Abstract translation: 本文提供了包含可能在高温下有用的增粘剂和过滤控制剂的处理流体以及使用处理流体处理地下地层的方法。 一种处理地下地层的方法,包括:提供一种处理流体,其包括:基础水溶液,包含至少一种单体的四元共聚物和接枝共聚物,其包含:包含褐煤和至少一种单体的主链; 并将处理流体引入穿透地下地层的井筒中。

    IMPROVEMENTS IN MATERIALS FOR USE IN SUBTERRANEAN FORMATIONS
    7.
    发明申请
    IMPROVEMENTS IN MATERIALS FOR USE IN SUBTERRANEAN FORMATIONS 审中-公开
    材料在亚太地区使用的改进

    公开(公告)号:WO2007052048A3

    公开(公告)日:2007-11-08

    申请号:PCT/GB2006004116

    申请日:2006-11-06

    Abstract: A fusible composition for use downhole comprises polymerisable thermoplastic resins selected from petroleum resins, copolymer alkylaromatic/cycloaliphatic resins, modified resins containing hydroxyl or carboxyl groups, such resins being selectable to be thermally cured yet remain flexible upon curing within selected temperature ranges, say 50-90 o C, 90-120 o C, 120-140 o C, and 140-160 o C or above, a polymerisation initiator, and an inorganic filler such as particulate forms of limestone, marble, granite, clay, shale, ground salt, calcium carbonate, calcium oxide, dolomite, or mixtures of the aforesaid fillers, the resin and filler being mixable and deliverable downhole in a fluid such that in use under the temperature and pressure conditions typically encountered downhole the resin cures in the composition, to form a fused flexible concretion.

    Abstract translation: 用于井下的可熔组合物包含选自石油树脂,共聚物烷基芳族/脂环族树脂,含有羟基或羧基的改性树脂的可聚合热塑性树脂,这种树脂可选择热固化但在选定温度范围内保持柔性, 90℃〜120℃,120〜140℃,140〜160℃ C 或以上,聚合引发剂和无机填料如石灰石,大理石,花岗岩,粘土,页岩,磨碎盐,碳酸钙,氧化钙,白云石或上述填料的混合物的颗粒形式,树脂和填料可混合 并可在井下输送到流体中,使得在通常在井下遇到的树脂在组合物中固化的温度和压力条件下使用,形成融合的柔性结合物。

    METHODS FOR CONTROLLING MIGRATION OF PARTICULATES IN A SUBTERRANEAN FORMATION
    8.
    发明申请
    METHODS FOR CONTROLLING MIGRATION OF PARTICULATES IN A SUBTERRANEAN FORMATION 审中-公开
    控制下层形成颗粒物迁移的方法

    公开(公告)号:WO2006103385A1

    公开(公告)日:2006-10-05

    申请号:PCT/GB2006/000720

    申请日:2006-03-01

    CPC classification number: C09K8/5753 C09K8/5083 C09K8/5086 C09K8/5755

    Abstract: Methods of controlling particulate migration in a portion of a subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a low-viscosity adhesive substance diluted with an aqueous dissolvable solvent into the portion of the subterranean formation; wherein the portion of a subterranean formation being treated has a regain permeability of at least about 70%. Methods of creating a stabilized region around a portion of a subterranean formation around a well bore having a screen or liner in place in that portion of the subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a low- viscosity adhesive substance diluted with an aqueous dissolvable solvent into that portion of the subterranean formation; wherein the portion of a subterranean formation being treated has regain permeability of at least about 70%.

    Abstract translation: 控制地下地层部分的颗粒迁移的方法,包括将预冲洗流体置于地下地层的部分中; 然后将用水溶性溶剂稀释的低粘度粘合剂物质放置在地层的部分中; 其中被处理的地层的部分具有至少约70%的回弹渗透率。 在围绕井眼周围的地下地层的一部分周围产生稳定区域的方法,其中所述地下地层的该部分中具有筛网或衬套就位,包括将预冲洗流体放置到所述地层的所述部分中; 然后将用水溶性溶剂稀释的低粘度粘合剂物质放置在该地层的该部分中; 其中被处理的地层的部分重新获得至少约70%的渗透率。

    CLAY STABILIZATION IN SUB-SURFACE FORMATIONS
    9.
    发明申请
    CLAY STABILIZATION IN SUB-SURFACE FORMATIONS 审中-公开
    表面处理中的粘土稳定性

    公开(公告)号:WO2005098199A3

    公开(公告)日:2006-05-04

    申请号:PCT/US2005009988

    申请日:2005-03-24

    CPC classification number: C09K8/608 C09K8/5083 C09K8/5753 C09K2208/12

    Abstract: Compositions and methods of using same for clay stabilization in sub-surface formation are provided. The compositions comprise an aqueous solution of a polymer such as poly(dimethylaminoethylmethacrylate methyl chloride quaternary salt). The present invention can be effectively utilized to inhibit clay swelling for treating and/or pretreating down-hole formations during well stimulation.

    Abstract translation: 提供了使用它们在亚表面形成中用于粘土稳定的组合物和方法。 组合物包含聚合物如聚(甲基丙烯酸二甲基氨基乙酯甲基氯化物季盐)的水溶液。 本发明可以有效地用于在井刺激期间抑制粘土膨胀用于处理和/或预处理井下地层。

    WELL TREATMENT
    10.
    发明申请
    WELL TREATMENT 审中-公开
    井治疗

    公开(公告)号:WO2005124097A1

    公开(公告)日:2005-12-29

    申请号:PCT/GB2005/002384

    申请日:2005-06-17

    CPC classification number: C09K8/5083 C09K8/5753

    Abstract: The present invention provides a method for the treatment of a subterranean formation which contains sand particles, said method comprising contacting said formation with a positively charged polymer capable of increasing the residual matrix strength of said sand particles whereby to reduce or prevent their migration whilst minimising any decrease in the permeability of said formation. Polymer materials suitable for use in the method of the invention include polyaminoacids, poly (diallyl ammonium salts) and mixtures thereof.

    Abstract translation: 本发明提供了一种处理含有砂粒的地层的方法,所述方法包括使所述地层与带正电荷的聚合物接触,该聚合物能够增加所述砂粒的残余基质强度,从而减少或防止其迁移,同时使任何 所述地层的渗透性降低。 适用于本发明方法的聚合物材料包括聚氨基酸,聚(二烯丙基铵盐)及其混合物。

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