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    • 1. 发明授权
    • Brine viscosification
    • 盐水增稠
    • US5480863A
    • 1996-01-02
    • US18133
    • 1993-02-16
    • Johnna E. OakleyKelly B. FoxAlvin Evans, Jr.Wayne S. Stewart
    • Johnna E. OakleyKelly B. FoxAlvin Evans, Jr.Wayne S. Stewart
    • C09K8/12C09K8/84C09K7/00E21B43/00
    • C09K8/845C09K8/12
    • A process for increasing the viscosity of a zinc compound-containing brine which can be used for workover and completion fluids in oil field operations is provided. The process comprises contacting the zinc compound-containing brine with a polymer which comprises repeating units derived from an unsaturated amide having the formula of CH.sub.2 .dbd.CH--R--C(O)--NH.sub.2 and a vinylic sulfur compound selected from the group consisting of CH.sub.2 .dbd.CH--R'--SO.sub.3 M, CH.sub.2 .dbd.CH--R"--C(O)--N(H)--R"'--SO.sub.2 M, and mixtures thereof; wherein M is selected from the group consisting of hydrogen, an alkali metal, and combinations thereof; and R is selected from the group consisting of hydrogen, a hydrocarbyl radical having from 1 to about 20 carbon atoms, and combinations thereof.
    • 提供了一种用于提高在油田操作中可用于修井和完井液体的含锌化合物的盐水的粘度的方法。 该方法包括使含锌化合物的盐水与聚合物接触,所述聚合物包含衍生自具有式CH 2 = CH-RC(O)-NH 2的不饱和酰胺的重复单元和选自下组的乙烯基硫化合物:CH 2 = CH -R'-SO 3 M,CH 2 = CH-R“C(O)-N(H)-R”'-SO 2 M,及其混合物; 其中M选自氢,碱金属及其组合; 并且R选自氢,具有1至约20个碳原子的烃基,及其组合。
    • 4. 发明授权
    • Stable liquid suspension compositions and suspending mediums for same
    • 稳定的液体悬浮液组合物和悬浮介质
    • US06667354B1
    • 2003-12-23
    • US09618444
    • 2000-07-18
    • Kelly B. FoxAlvin Evans, Jr.
    • Kelly B. FoxAlvin Evans, Jr.
    • C08K509
    • C08J3/095C08J3/09C08K5/10C08L21/00C09K8/24
    • Stable and environmentally friendly suspensions of solid particulates are provided through the addition of such solid particulates to a suspension medium which is comprised of a liquid carrier, a liquid carrier soluble resin, an organophyllic clay, and an activator wherein said liquid carrier is a carboxylic acid ester, preferably 2-ethylhexyl oleate, said liquid carrier soluble resin is selected from the group consisting of styrene-isoprene copolymers, styrene ethylene-propylene block copolymers, styrene isobutylene copolymers, styrene butadiene copolymers, polybutylene, polystyrene, polyethylene-propylene copolymers, methyl methacrylate and mixtures thereof, said organophyllic clay is one of kaolinite, halloysite, vermiculite, chlorite, attapullgite, smectite, montmorillonite, bentonite, hectorite, and mixtures thereof and said activator is an alcohol of the formula ROH wherein R is an alkyl group of 1 to 10 carbon atoms.
    • 通过将这样的固体颗粒添加到由液体载体,液体载体可溶性树脂,有机皂基粘土和活化剂组成的悬浮介质中来提供固体颗粒的稳定和环境友好的悬浮液,其中所述液体载体是羧酸 酯,优选2-乙基己基油酸酯,所述液体载体可溶性树脂选自苯乙烯 - 异戊二烯共聚物,苯乙烯乙烯 - 丙烯嵌段共聚物,苯乙烯异丁烯共聚物,苯乙烯丁二烯共聚物,聚丁烯,聚苯乙烯,聚乙烯 - 丙烯共聚物,甲基 甲基丙烯酸酯及其混合物,所述有机皂土是高岭石,多水高岭土,蛭石,亚氯酸盐,绿泥石,蒙脱石,蒙脱石,膨润土,锂蒙脱石及其混合物之一,所述活化剂是式ROH的醇,其中R为烷基 至10个碳原子。