Drilling fluids based on hydrocarbon soluble polyampholytes
    1.
    依法登记的发明
    Drilling fluids based on hydrocarbon soluble polyampholytes 失效
    基于烃溶性聚阴离子的钻井液

    公开(公告)号:USH495H

    公开(公告)日:1988-07-05

    申请号:US72300

    申请日:1987-07-13

    IPC分类号: C09K8/32

    CPC分类号: C09K8/32

    摘要: An oil-based drilling mud which comprises:(a) a hydrocarbon liquid substantially immiscible in water;(b) about 1 to about 100 parts by weight of water per 100 parts of the hydrocarbon liquid;(c) about 2 to about 50 lb/bbl. of at least one emulsifier;(d) about 0.5 to about 5 lb/bbl. of a wetting agent;(e) about 50 to about 750 lb/bbl. of a weighting agent;(f) about 0.1 to about 25 lb/bbl. of a water insoluble, oil soluble terpolymer, said terpolymer having the formula: ##STR1## wherein R.sub.1 and R.sub.3 are selected from the group consisting of hydrogen and a methyl group, wherein R.sub.2 is selected from the group consisting of C.sub.3 H.sub.5, C.sub.6 H.sub.4 --CH.sub.3, C.sub.6 H.sub.4 (CH.sub.3).sub.2 and CnH.sub.2n+1, wherein n=1 to 30 and R.sub.4 is selected from the group consisting of C.sub.5 H.sub.4 N, CnH.sub.2n NH.sub.3 and CnH.sub.2n N(CH.sub.3).sub.3, wherein n=1 to 30 and x is about 40 to about 98 mole percent, y is about 1 to about 50 mole percent, and z is about 1 to about 50 mole percent, wherein y and z are less than 60 mole percent, and M is an amine or a metal cation selected from the group consisting of aluminum, iron, lead, Groups IA, IIA, IVA, VIA, VIIA, VIIIA, IB and IIB of the Periodic Table of Elements.

    Hydrocarbon soluble polymer complexes useful as viscosifiers in
fracturing operations
    2.
    发明授权
    Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations 失效
    用于压裂作业中的增粘剂的烃溶性聚合物配合物

    公开(公告)号:US4579671A

    公开(公告)日:1986-04-01

    申请号:US651899

    申请日:1984-09-19

    IPC分类号: C09K8/64 E21B43/26

    CPC分类号: C09K8/64 Y10S507/922

    摘要: A process for fracturing a subterranean formation surrounding a gas or oil well which comprises injecting said subterranean formation under hydraulic pressure with a fluid comprising about 0.1 to about 75 percent of an interpolymer complex dissolved in a solvent system of a nonpolar organic liquid and a polar cosolvent (as desired), said polymer complex comprises the interaction product of a sulfonated polymer and an amine containing polymer, wherein the sulfonate content of the sulfonated polymer is about 4 meq. per 100 gram of polymer to about 200 meq. per 100 gram of polymer and the basic nitrogen content of the amine containing polymer is about 4 meq. per 100 gram of polymer to about 500 meq. per 100 gram of polymer, and by the addition of polar cosolvent to such solution of polymer complex modifying its rheological properties over a wide range and their subsequent use as fracturing fluids.

    摘要翻译: 一种用于压裂围绕气体或油井的地下地层的方法,其中包括在液压下用含有约0.1至约75%的溶解在非极性有机液体和极性助溶剂的溶剂体系中的互聚物络合物的流体注入所述地下地层 (根据需要),所述聚合物复合物包括磺化聚合物和含胺聚合物的相互作用产物,其中磺化聚合物的磺酸盐含量为约4meq。 每100克聚合物至约200meq。 每100克聚合物,并且含胺聚合物的碱性氮含量为约4meq。 每100克聚合物至约500meq。 每100克聚合物,并通过向这种聚合物络合物溶液加入极性助溶剂,改变其在很宽的范围内的流变性能,并随后用作压裂液。

    Hydrocarbon soluble polymer complexes useful as viscosifiers in
fracturing operations
    4.
    发明授权
    Hydrocarbon soluble polymer complexes useful as viscosifiers in fracturing operations 失效
    用于压裂作业中的增粘剂的烃溶性聚合物配合物

    公开(公告)号:US4615393A

    公开(公告)日:1986-10-07

    申请号:US673004

    申请日:1984-11-19

    IPC分类号: C09K8/64 E21B43/26 E21B43/267

    CPC分类号: C09K8/64 Y10S507/922

    摘要: A process for fracturing a subterranean formation surrounding a gas or oil well which comprises injecting into said subterranean formation under hydraulic pressure a fluid comprising about 0.01 to about 25 weight percent of a water insoluble polymer complex dissolved in a solvent system of a nonpolar organic liquid, said polymer complex comprising the interaction product of a metal neutralized sulfonated polymer and an amine containing polymer, wherein the sulfonate content of the sulfonated polymer is about 4 meq. per 100 gram of polymer to about 200 meq. per 100 gram of polymer and the basic nitrogen content of the amine containing polymer is about 4 meq. per 100 gram of polymer to about 500 meq. per 100 gram of polymer.

    摘要翻译: 一种用于压裂围绕气体或油井的地层的方法,其包括在水压下将包含约0.01至约25重量%的溶解在非极性有机液体的溶剂体系中的水不溶性聚合物配合物的流体注入所述地下地层, 所述聚合物复合物包含金属中和的磺化聚合物和含胺聚合物的相互作用产物,其中磺化聚合物的磺酸盐含量为约4meq。 每100克聚合物至约200meq。 每100克聚合物,并且含胺聚合物的碱性氮含量为约4meq。 每100克聚合物至约500meq。 每100克聚合物。

    Controlled hydraulic fracturing via nonaqueous solutions containing low
charge density polyampholytes
    5.
    发明授权
    Controlled hydraulic fracturing via nonaqueous solutions containing low charge density polyampholytes 失效
    通过含有低电荷密度聚阴离子的非水溶液控制水力压裂

    公开(公告)号:US4739834A

    公开(公告)日:1988-04-26

    申请号:US521

    申请日:1987-01-05

    IPC分类号: C09K8/64 E21B43/26

    CPC分类号: C09K8/64 Y10S507/922

    摘要: A process for fracturing a subterranean formation surrounding a gas or oil well which comprises:(a) injecting into said subterranean formation under hydraulic pressure a fluid comprising a solution of terpolymer dissolved in a solvent system, said solvent system comprising an organic liquid and a polar cosolvent, said polar cosolvent being less than about 15 weight percent of said solvent system, said terpolymer comprising a water-insoluble, oil-soluble terpolymer dissolved in said solvent system, the concentration of said terpolymer in said solution being about 0.2 to about 10 weight percent and the viscosity of said solution being less than about 2,000 cps, said terpolymer having the formula: ##STR1## wherein R.sub.1 =C.sub.6 H.sub.5, C.sub.6 H.sub.4 --CH.sub.3, C.sub.6 H.sub.4 --(CH.sub.3).sub.3, Cn H.sub.2 NH; wherein n=1-30; wherein x is about 50 to about 98 mole percent; y is about 1 to about 50 mole percent; z is about 1 to about 50 mole percent; wherein y and z are less than 60 mole percent; and M is an amine or a metal cation selected from the group consisting of antimony, tin, lead, Groups IA, IIA, IB and IIB of the Periodic Table of Elements; and(b) adding water to said solution of said polymer, said polar cosolvent transferring from said organic liquid to said water, thereby causing said organic liquid to gel within the fractures of said subterranean formation.

    摘要翻译: 一种用于压裂围绕气体或油井的地层的方法,其包括:(a)在液压下将包含溶解在溶剂体系中的三元共聚物溶液的流体注入所述地层中,所述溶剂体系包含有机液体和极性 共溶剂,所述极性助溶剂小于所述溶剂体系的约15重量%,所述三元共聚物包含溶解在所述溶剂体系中的水不溶性油溶性三元共聚物,所述三元共聚物在所述溶液中的浓度为约0.2至约10重量% 所述三元共聚物具有下式:其中R1 = C6H5,C6H4-CH3,C6H4-(CH3)3,CnH2NH; 其中n = 1-30; 其中x为约50至约98摩尔%; y为约1至约50摩尔%; z为约1至约50摩尔%; 其中y和z小于60摩尔%; M是选自元素周期表的锑,锡,铅,IA,IIA,IB和IIB族的胺或金属阳离子; 和(b)向所述聚合物的所述溶液中加入水,所述极性助溶剂从所述有机液体转移到所述水中,从而使所述有机液体在所述地层的裂缝内凝胶化。

    Thermally stable borehole fluids
    6.
    发明授权
    Thermally stable borehole fluids 失效
    耐热稳定的井眼液

    公开(公告)号:US4627926A

    公开(公告)日:1986-12-09

    申请号:US651900

    申请日:1984-09-19

    摘要: A method of completing a subterranean formation of an oil or gas well to increase the recovery of hydrocarbons from the producing reservoir which comprises dissolving about 0.25 to about 20 lb/bbl of a water soluble terpolymer in an aqueous solution to viscosify said aqueous solution and pumping said aqueous solution with said water base terpolymer dissolved therein into said well to control the sub-surface pressures of said well, wherein said terpolymer has the formula: ##STR1## wherein x is about 70 to about 98 mole %, y is about 1 to about 15 mole %, z is about 1 to about 15 mole %, wherein y and z are less than 60 mole %, and M is selected from the group consisting of amines and a metallic cation being selected from the group consisting of lead, iron, aluminum, Groups IA, IIA, IB and II of the Periodic Table of Elements.

    摘要翻译: 一种完成油井或气井的地层形成以提高从生产储层中回收烃的方法,其包括在水溶液中溶解约0.25至约20磅/桶的水溶性三元共聚物以使所述水溶液粘稠和泵送 所述水溶液与所述水基三元共聚物溶解在所述孔中以控制所述孔的下表面压力,其中所述三元共聚物具有下式:其中x为约70至约98摩尔%,y为约1至 约15摩尔%,z为约1至约15摩尔%,其中y和z小于60摩尔%,M选自胺和金属阳离子,所述胺和金属阳离子选自铅,铁 ,铝,元素周期表的IA,IIA,IB和II组。

    Fluid loss control in oil field cements
    7.
    发明授权
    Fluid loss control in oil field cements 失效
    油田水泥中的流体损失控制

    公开(公告)号:US4659750A

    公开(公告)日:1987-04-21

    申请号:US741079

    申请日:1985-06-04

    摘要: An aqueous slurry which comprises (a) a cement; (b) about 0.05 to 5.0 wt. % of a copolymer of N-vinylpyrrolidone and a salt of styrenesulfonic acid based on the dry weight of said cement; (c) about 0.05 to 5.0 wt. % of a formaldehyde condensed naphthalene-sulfonic acid salt based on the dry weight of said cement; and (d) water, said cement, said copolymer and said dispersant being dispersed in said water to form said aqueous slurry.

    摘要翻译: 一种含水浆料,其包含(a)水泥; (b)约0.05〜5.0重量% 基于所述水泥的干重,N-乙烯基吡咯烷酮和苯乙烯磺酸盐的共聚物的%; (c)约0.05〜5.0重量% %的甲醛缩合萘磺酸盐,基于所述水泥的干重; 和(d)水,所述水泥,所述共聚物和所述分散剂分散在所述水中以形成所述含水浆料。

    Aqueous acid gels and use thereof
    8.
    发明授权
    Aqueous acid gels and use thereof 失效
    水性酸凝胶及其用途

    公开(公告)号:US4624795A

    公开(公告)日:1986-11-25

    申请号:US717208

    申请日:1985-03-28

    IPC分类号: C09K8/68 C09K8/72 E21B43/27

    摘要: Copolymers of a predominant proportion of an olefinically unsaturated sulfonic acid, an acrylamide, a vinyl phosphonic acid, and optionally other copolymerizable vinyl monomers, form aqueous acid gel compositions when added to the aqueous acid along with a gelling agent selected from titanium or zirconium compounds, and retarded gel destabilizing compounds containing fluoride, sulphate or phosphate anions, the apparent viscosity and time of stability of the acid gel composition being controlled by the addition of these essential ingredients.

    摘要翻译: 当主要比例的烯属不饱和磺酸,丙烯酰胺,乙烯基膦酸和任选的其它可共聚的乙烯基单体的共聚物当与选自钛或锆化合物的胶凝剂一起加入酸水溶液中时形成含水酸性凝胶组合物, 和含有氟化物,硫酸盐或磷酸盐阴离子的延迟凝胶去稳定化合物,通过加入这些必需成分来控制酸性凝胶组合物的表观粘度和稳定时间。