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    Methods, aqueous well treating fluids and friction reducers therefor
    11.
    发明授权
    Methods, aqueous well treating fluids and friction reducers therefor 有权
    方法，水处理液和减摩剂

    公开(公告)号：US06784141B1

    公开(公告)日：2004-08-31

    申请号：US10419455

    申请日：2003-04-21

    申请人： Karen L. King ,  David E. McMechan ,  Jiten Chatterji

    发明人： Karen L. King ,  David E. McMechan ,  Jiten Chatterji

    IPC分类号： C09K702

    CPC分类号： F17D1/17 ,  C09K8/12 ,  C09K8/68 ,  C09K8/88 ,  Y10S507/922

    摘要： The present invention relates to methods, aqueous treating fluids and friction pressure reducers for the treating fluids. A treating fluid of the invention comprises water and a non-toxic environmentally acceptable friction pressure reducer comprising a mixture of a copolymer of acrylamide and dimethylaminoethyl acrylate quaternized with benzyl chloride and a stabilizing and dispersing homopolymer of ethanaminium,N,N,N-trimethyl-2-[(1,oxo-2-prbpenyl)oxy]-chloride.

    摘要翻译： 本发明涉及用于处理流体的方法，水处理流体和摩擦减压器。 本发明的处理流体包含水和无毒环境可接受的摩擦减压剂，其包含丙烯酰胺与丙烯酸酯季铵化的丙烯酰胺和丙烯酸二甲基氨基乙酯的共聚物与乙胺，N，N，N-三甲基 - 2 - [（1，氧代-2-丙烯基）氧基]氯化物。

    Foamed treatment fluids and associated methods
    13.
    发明授权
    Foamed treatment fluids and associated methods 有权
    发泡处理液和相关方法

    公开(公告)号：US07407916B2

    公开(公告)日：2008-08-05

    申请号：US11354418

    申请日：2006-02-15

    申请人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Stanley J. Heath ,  Chad Brenneis

    发明人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Stanley J. Heath ,  Chad Brenneis

    IPC分类号： C09K8/68 ,  C09K8/70

    CPC分类号： C09K8/703

    摘要： Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate, an alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and combinations thereof, and an alkyl amidopropyl dimethylamine oxide. Methods comprising providing the foamed treatment fluid and introducing the foamed treatment fluid into a subterranean formation.

    摘要翻译： 包含水，气体和发泡泡沫稳定表面活性剂混合物的发泡处理流体包含烷基醚硫酸盐的碱金属盐，其中烷基醚硫酸盐的碱金属盐包含C 6〜 烷基醚硫酸盐和C 4-14烷基醚硫酸盐的碱金属盐，烷基酰氨基丙基两性表面活性剂，其选自烷基酰氨基丙基羟基磺基甜菜碱，烷基酰氨基丙基甜菜碱及其组合 ，和烷基酰氨基丙基二甲基胺氧化物。 方法包括提供发泡处理流体并将泡沫处理流体引入地层中。

    Recyclable foamed fracturing fluids and methods of using the same
    15.
    发明授权
    Recyclable foamed fracturing fluids and methods of using the same 有权

    公开(公告)号：US07205263B2

    公开(公告)日：2007-04-17

    申请号：US10956928

    申请日：2004-10-01

    申请人： Jiten Chatterji ,  Bobby J. King ,  Karen L. King

    发明人： Jiten Chatterji ,  Bobby J. King ,  Karen L. King

    IPC分类号： C09K8/62 ,  C09K8/68

    CPC分类号： C09K8/703 ,  Y10S507/922

    摘要： Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The foamed fracturing fluid is subsequently pumped to the subterranean formation to fracture it. The pH of the fracturing fluid is then changed to a second pH at which the surfactant facilitates reduction of the foam. The fracturing fluid releases proppant contained in the fluid to the subterranean formation. The fracturing fluid is then allowed to flow back to the surface. It can be recycled by changing the pH of the fracturing fluid back to the first pH and adding a gas to the fluid, causing it to foam again.

    Foamed treatment fluids and associated methods
    16.
    发明授权
    Foamed treatment fluids and associated methods 有权
    发泡处理液和相关方法

    公开(公告)号：US07134497B1

    公开(公告)日：2006-11-14

    申请号：US11355059

    申请日：2006-02-15

    申请人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Stanley J. Heath ,  Chad Brennels

    发明人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Stanley J. Heath ,  Chad Brennels

    IPC分类号： E21B43/26

    CPC分类号： C09K8/703 ,  C09K8/38 ,  C09K8/685 ,  C09K2208/26

    摘要： Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate, an alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and combinations thereof, and an alkyl amidopropyl dimethylamine oxide. Methods comprising providing the foamed treatment fluid and introducing the foamed treatment fluid into a subterranean formation.

    摘要翻译： 包含水，气体和发泡泡沫稳定表面活性剂混合物的发泡处理流体包含烷基醚硫酸盐的碱金属盐，其中烷基醚硫酸盐的碱金属盐包含C 6〜 烷基醚硫酸盐和C 4-14烷基醚硫酸盐的碱金属盐，烷基酰氨基丙基两性表面活性剂，其选自烷基酰氨基丙基羟基磺基甜菜碱，烷基酰氨基丙基甜菜碱及其组合 ，和烷基酰氨基丙基二甲基胺氧化物。 方法包括提供发泡处理流体并将泡沫处理流体引入地层中。

    Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid
    20.
    发明授权
    Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid 失效
    使用pH依赖性泡沫压裂液压裂地层的方法

    公开(公告)号：US06966379B2

    公开(公告)日：2005-11-22

    申请号：US10683644

    申请日：2003-10-10

    申请人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Billy F. Slabaugh

    发明人： Jiten Chatterji ,  Karen L. King ,  Bobby J. King ,  Billy F. Slabaugh

    IPC分类号： C09K8/70 ,  E21B43/27

    CPC分类号： C09K8/703 ,  Y10S507/922

    摘要： Methods of fracturing a subterranean formation include providing a fracturing fluid having a first pH. The fracturing fluid may be made by combining a gelling agent, a surfactant, and a proppant. The surfactant is capable of facilitating foaming of the fracturing fluid at the first pH and defoaming of the fracturing fluid when its pH is changed to a second pH. The methods of fracturing the subterranean formation further include foaming the fracturing fluid having the first pH and subsequently pumping it to the subterranean formation to fracture the formation. The pH of the fracturing fluid changes to a second pH, for example via in situ contact with an acidic material, causing the level of foam in the fracturing fluid to be reduced. As a result of the reduction of the foam, the fracturing fluid deposits the proppant into the fractures formed in the subterranean formation.

    摘要翻译： 压裂地层的方法包括提供具有第一pH的压裂液。 压裂液可以通过组合胶凝剂，表面活性剂和支撑剂来制备。 表面活性剂能够促使压裂流体在第一pH下发泡，并且当其pH变为第二pH时能够使压裂液脱泡。 压裂地层的方法还包括使具有第一pH的压裂液发泡，随后将其泵送到地层以破裂地层。 压裂液的pH值变化到第二个pH值，例如通过与酸性材料的原位接触，导致压裂液中泡沫的水平降低。 作为泡沫减少的结果，压裂液将支撑剂沉积到地层中形成的裂缝中。