Plugging wellbores
    3.
    发明授权
    Plugging wellbores 失效
    堵塞井筒

    公开(公告)号:US4475594A

    公开(公告)日:1984-10-09

    申请号:US392722

    申请日:1982-06-28

    CPC分类号: C09K8/502

    摘要: A process for plugging a porous area of well bore which comprises pumping a shear thickening composition into the well under conditions of low shear to the portion of the well bore desired to be plugged at which point subjected to high shear to form a paste which plugs or seals the porous area. The shear thickening composition comprises a water-in-oil emulsion having granular bentonite dispersed in the oily phase, said oily phase having both an oil soluble amine and a polyamine derivative surfactant dissolved therein. The aqueous phase will preferably comprises a polyacrylamide solution. This process may be used for plugging wells having depths in excess of 8,000 feet.

    摘要翻译: 一种用于堵塞井眼多孔区域的方法,其包括在低剪切条件下将剪切增稠组合物泵送到井的要被堵塞的部分的孔的部分,在该点经受高剪切以形成糊状物的堵塞或 密封多孔区域。 剪切增稠组合物包含分散在油相中的颗粒膨润土的油包水乳液,所述油相具有溶解于其中的油溶性胺和多胺衍生物表面活性剂。 水相优选包含聚丙烯酰胺溶液。 该过程可用于堵塞深度超过8000英尺的井。

    Shear thickening composition with polycarboxylic acid
    4.
    发明授权
    Shear thickening composition with polycarboxylic acid 失效
    剪切增稠组合物与多元羧酸

    公开(公告)号:US4663366A

    公开(公告)日:1987-05-05

    申请号:US586840

    申请日:1984-03-06

    CPC分类号: C09K8/50 C09K8/24 E21B21/003

    摘要: A shear thickening composition which comprises a water-in-oil emulsion having dispersed in the continuous, oily phase thereof, hydratable, water-expandable hydrophillic clay, wherein said oily phase has a polyamine derivative surfactant dissolved therein and the dispersed aqueous phase comprises an aqueous solution of a polyacrylamide and polycarboxylic acid. These compositions are useful as well control fluids and may be used in deep wells.

    摘要翻译: 一种剪切增稠组合物,其包含分散在其连续的油相中的油包水乳液,其是可水合的,水可膨胀的亲水性粘土,其中所述油相具有溶解在其中的多胺衍生物表面活性剂,并且所述分散的水相包含水性 聚丙烯酰胺和多元羧酸的溶液。 这些组合物也可用作对照液,并可用于深井。

    Shear thickening composition
    5.
    发明授权
    Shear thickening composition 失效
    剪切增稠组合物

    公开(公告)号:US4442241A

    公开(公告)日:1984-04-10

    申请号:US392632

    申请日:1982-06-28

    摘要: A shear thickening composition which comprises a water-in-oil emulsion having dispersed in the continuous, oily phase thereof, hydratable, water-expandable hydrophillic clay, said oily phase having dissolved therein a polyamine derivative surfactant and an oil-soluble amine. The aqueous phase will preferably have dissolved therein a polymer, preferably a polyacrylamide, which will flocculate and congeal the clay when same is mixed with water. These compositions are useful as well control fluids and may be used in deep wells.

    摘要翻译: 一种剪切增稠组合物,其包含分散在其连续的油相中的油包水乳液,可水合的水可膨胀的亲水性粘土,所述油相中溶解有聚胺衍生物表面活性剂和油溶性胺。 水相优选在其中溶解有聚合物,优选聚丙烯酰胺,当与水混合时,将使粘土絮凝和凝结。 这些组合物也可用作对照液,并可用于深井。

    Method for plugging wellbores with polycarboxylic acid shear thickening
composition
    6.
    发明授权
    Method for plugging wellbores with polycarboxylic acid shear thickening composition 失效
    用聚羧酸剪切增稠组合物堵塞井眼的方法

    公开(公告)号:US4542791A

    公开(公告)日:1985-09-24

    申请号:US672580

    申请日:1984-11-16

    摘要: A process for plugging a porous formation in a well bore which comprises pumping a shear-thickening composition into drill pipe in the well under conditions of low shear to the point desired to be plugged at which point the composition is forced through the orifices of a drill bit at the end of the drill pipe and subjected to high shear of at least about 1,000 sec..sup.-1 which forms a paste in the well bore which plugs the porous formation. The shear-thickening composition comprises a water-in-oil emulsion having granular bentonite dispersed in the continuous oily phase, wherein the oily phase has a polyamine derivative surfactant dissolved therein, and the aqueous phase comprises an aqueous solution of a polyacrylamide and a polycarboxylic acid. This process may be used for plugging wells having depths in excess of 8,000 feet.

    摘要翻译: 一种在井眼中堵塞多孔地层的方法,其包括将剪切增稠组合物在低剪切的条件下泵送到井中的钻杆中,直到要堵塞的点,在该点将组合物强制通过钻头的孔 钻头在钻杆的端部并且受到至少约1,000秒-1的高剪切,其在井眼中形成粘合多孔结构的浆料。 剪切增稠组合物包含分散在连续油相中的颗粒膨润土的油包水乳液,其中油相具有溶解在其中的多胺衍生物表面活性剂,水相包含聚丙烯酰胺和多元羧酸的水溶液 。 该过程可用于堵塞深度超过8000英尺的井。

    Coating a substrate with an ionomer
    7.
    发明授权
    Coating a substrate with an ionomer 失效
    用离聚物涂覆基材

    公开(公告)号:US5190797A

    公开(公告)日:1993-03-02

    申请号:US720042

    申请日:1991-06-24

    IPC分类号: B01J2/00 B01J2/28 C05G3/00

    CPC分类号: B01J2/28 B01J2/006 C05G3/0029

    摘要: The present invention relates to a process for the encapsulation of a solid substrate with a neutralized sulfonated polymer, which comprises the steps of: (a) forming a solution of a non-conjugated, diene polymer in a solvent selected from the group consisting of aliphatic, aromatic hydrocarbons and mixtures thereof; (b) contacting the solution of the unsaturated polymer with a sulfonating agent at a sufficient temperature and for a sufficient period of time to form a solution of a sulfonated polymer containing free acid; (c) forming a solution of a base selected from the group consisting of alkali metal hydroxides and mixtures thereof in a mixtrue of an aliphatic alcohol and a hydrocarbon, the hydrocarbon being selected from the group consisting of aliphatic and aromatic hydrocarbons and mixtures thereof; (d) adding the solution of base to the solution of sulfonated polymer in an amount sufficient to neutralize the polymer and the free acid, thereby forming a coating solution; (e) contacting the solid substrate with the coating solution while removing the solvent therefrom, thereby forming an encapsulated substrate. In a preferred embodiment, the solvent removed during step (e) is recovered and distilled to separate the solvent into at least two fractions, a fraction containing substantially hydrocarbon and an alcohol containing fraction. The separated solvents are then recycled to dissolve the polymer in step (a) and to dissolve the base in step (c).

    摘要翻译: 本发明涉及用中和的磺化聚合物包封固体基质的方法,其包括以下步骤:(a)在选自脂肪族的溶剂中的溶剂中形成非共轭二烯聚合物的溶液 ,芳族烃及其混合物; (b)在足够的温度下将不饱和聚合物的溶液与磺化剂接触足够的时间以形成含有游离酸的磺化聚合物的溶液; (c)在脂族醇和烃的混合物中形成选自碱金属氢氧化物及其混合物的碱的溶液,所述烃选自脂族和芳族烃及其混合物; (d)将碱溶液以足以中和聚合物和游离酸的量向磺化聚合物溶液中加入,从而形成涂布溶液; (e)将固体基质与涂布溶液接触,同时从其中除去溶剂,由此形成封装的基材。 在优选的实施方案中,回收步骤(e)中除去的溶剂并蒸馏以将溶剂分离成至少两个馏分,基本上含有烃和含醇的馏分。 然后将分离的溶剂再循环以在步骤(a)中溶解聚合物并在步骤(c)中溶解碱。

    Encapsulated breaker chemical
    8.
    发明授权
    Encapsulated breaker chemical 失效
    封装式断路器化学品

    公开(公告)号:US5102558A

    公开(公告)日:1992-04-07

    申请号:US637401

    申请日:1991-01-04

    IPC分类号: C09K8/62 C09K8/92

    摘要: An encapsulated breaker chemical composition used in a fracturing process in the protection of an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical, wherein the neutralized sulfonated polymer is permeable to the breaker chemical and the neutralized sulfonated polymer is non-reactive to the breaker chemical.

    摘要翻译: 一种用于压裂过程中用于保护油或气体刺激操作的封装的破碎剂化学组合物,其包括:破碎剂化学品; 以及沉积在破碎剂化学品的表面上的约2至约80微米厚的中和的磺化弹性体聚合物的无针孔涂层,其中所述中和的磺化聚合物封装破碎剂化学品,其中中和的磺化聚合物对破碎剂化学品是可渗透的, 中和的磺化聚合物与破碎剂化学品无反应性。

    Biodegradable barrier films of ionomer polymer
    9.
    发明授权
    Biodegradable barrier films of ionomer polymer 失效
    离聚物聚合物的可生物降解阻隔膜

    公开(公告)号:US4997470A

    公开(公告)日:1991-03-05

    申请号:US380248

    申请日:1989-07-17

    摘要: An encapsulated water soluble fertilizer which comprises a polymeric film of about 2 to about 100 micrometers coated on a surface of said fertilizer, said polymeric film comprising a sulfonated polymer having about 10 to about 200 meq of sulfonate groups per 100 grams of said sulfonated polymer, said sulfonate groups being neutralized with a polycaprolactone polymer being characterized by the formula ##STR1## wherein R.sub.1 and R.sub.2 is an alkyl, cycloalkyl or aryl group; R.sub.3, R.sub.4 and R.sub.5 are a hydrogen or alkyl, cycloalkyl, or aryl groups; m equals 1 to 20 and n equals 1 to 500.

    摘要翻译: 一种包封的水溶性肥料,其包含涂覆在所述肥料表面上的约2至约100微米的聚合物膜,所述聚合物膜包含每100克所述磺化聚合物约10至约200毫克磺酸盐基团的磺化聚合物, 所述磺酸酯基团用聚己内酯聚合物中和,其特征在于下式:其中R 1和R 2是烷基,环烷基或芳基; R3,R4和R5是氢或烷基,环烷基或芳基; m等于1到20,n等于1到500。