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    Fixed bed process for polymerizing liquid butenes
    85.
    发明授权
    Fixed bed process for polymerizing liquid butenes 失效
    用于聚合液体丁烯的固定床工艺

    公开(公告)号：US4982045A

    公开(公告)日：1991-01-01

    申请号：US385712

    申请日：1989-07-26

    申请人： Frank J. Chen ,  Robert D. Lundberg

    发明人： Frank J. Chen ,  Robert D. Lundberg

    IPC分类号： C08F10/08

    CPC分类号： C08F10/08

    摘要： This process is one in which a butene feed is passed through a fixed bed of granular aluminum trichloride catalyst, preferably in the presence of an added co-catalyst, to produce a polymerized butene product having number-average molecular weight of greater than about 250.

    摘要翻译： 该方法是使丁烯进料通过三氯化钛颗粒催化剂的固定床，优选在加入的助催化剂存在下，生产数均分子量大于约250的聚合丁烯产物。

    Controlled hydraulic fracturing via nonaqueous solutions containing low charge density polyampholytes
    90.
    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

    申请人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Lawrence P. Sedillo ,  John C. Newlove

    发明人： Dennis G. Peiffer ,  Robert D. Lundberg ,  Lawrence P. Sedillo ,  John C. Newlove

    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。