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84 条记录 (耗时 0.024 秒)

    Conductive medium for openhole logging and logging while drilling
    21.
    发明授权
    Conductive medium for openhole logging and logging while drilling 失效
    用于裸眼测井和采伐的导电介质

    公开(公告)号：US06308788B1

    公开(公告)日：2001-10-30

    申请号：US09514680

    申请日：2000-02-28

    申请人： Arvind D. Patel ,  Rejinald J. Bell ,  Burhan Hoxha

    发明人： Arvind D. Patel ,  Rejinald J. Bell ,  Burhan Hoxha

    IPC分类号： C09K706

    CPC分类号： G01V3/20 ,  C09K8/32

    摘要： A method of electrically logging subterranean wells using a conductive fluid in which the conductive fluid includes a miscible combination of an oleaginous fluid, a polar organic solvent, and an electrolytic salt. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The medium may further include gelling agent, weight material, surfactant, or corrosion inhibitors. The polar organic solvent may preferably be a oil soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol, polypropylene glycol, and the like. The electrolytic salt or brine is preferably a quaternary amine salt having the formula: wherein R is an alkyl having 8 to 18 carbon atoms, R′ is 2 to 6 carbon atoms alkyl group, B is hydrogen, oxyalkyl having 1 to 4 carbon atoms or alkyl having 1 to 4 carbon atoms, A is hydrogen or alkyl with 1 to 4 carbon atoms, x+y=1 to 15, z is 0 to 3, and M− is a counter anion; or combinations thereof.

    摘要翻译： 一种使用导电流体对地下井进行电测井的方法，其中导电流体包括油性流体，极性有机溶剂和电解盐的可混合组合。 盐的电解盐或盐水的存在浓度足以允许对地下井进行电测井。 介质还可以包括胶凝剂，重量材料，表面活性剂或腐蚀抑制剂。 极性有机溶剂可以优选为油溶性二醇或二醇醚，例如乙二醇，二甘醇，丙二醇，聚丙二醇等。 电解盐或盐水优选为具有下式的季胺盐：其中R为具有8至18个碳原子的烷基，R'为2至6个碳原子的烷基，B为氢，具有1至4个碳原子的烷氧基烷基或 具有1至4个碳原子的烷基，A是氢或具有1至4个碳原子的烷基，x + y = 1至15，z为0至3，M-为抗衡阴离子; 或其组合。

    Ester based invert emulsion drilling fluids and muds having negative alkalinity
    22.
    发明授权
    Ester based invert emulsion drilling fluids and muds having negative alkalinity 有权
    基于酯的反相乳液钻井液和具有负碱度的泥浆

    公开(公告)号：US5977031A

    公开(公告)日：1999-11-02

    申请号：US130914

    申请日：1998-08-07

    申请人： Arvind D. Patel

    发明人： Arvind D. Patel

    IPC分类号： C09K8/32 ,  C09K8/36 ,  C09K8/52 ,  E21B21/06 ,  C09K7/02

    CPC分类号： C09K8/32 ,  C09K8/36 ,  C09K8/52 ,  E21B21/068 ,  Y10S507/921 ,  Y10S507/933

    摘要： An invert emulsion suitable for drilling subterranean wells, in particular oil and gas wells is disclosed which includes an oleaginous phase, and a non-oleaginous phase and a protonated amine surfactant which stabilizes the invert emulsion in the absence of an alkaline reserve material. The protonated amine surfactant has the general formula:[R--N.sup.+ --H.sub.3 ]B.sup.-wherein R is a C.sub.12 to C.sub.22 alkyl group and B.sup.- is a conjugate base of an acid; and the protonated amine surfactant is present in an amount capable of stabilizing the invert emulsion in the absence of an alkali reserve. The practice of the present invention permits the use of a broad range of esters as the oleaginous phase including simple alkyl esters which previously susceptible to hydrolysis due to the presence of an alkaline reserve material.

    摘要翻译： 公开了适用于钻井地下井，特别是油气井的反相乳液，其包括油相和非油质相和质子化胺表面活性剂，其在不存在碱性储备材料的情况下稳定反相乳液。 质子化胺表面活性剂具有以下通式：[R-N + -H 3] B - 其中R是C 12至C 22烷基，B是酸的共轭碱; 并且质子化胺表面活性剂以能够在没有碱储备的情况下稳定反相乳液的量存在。 本发明的实践允许使用宽范围的酯作为含油相，包括由于存在碱性储备材料而易于水解的简单的烷基酯。

    Oil base drilling fluid composition
    24.
    发明授权
    Oil base drilling fluid composition 失效
    油基钻井液组成

    公开(公告)号：US4740319A

    公开(公告)日：1988-04-26

    申请号：US828621

    申请日：1986-01-29

    申请人： Arvind D. Patel ,  Carmelita Salandanan

    发明人： Arvind D. Patel ,  Carmelita Salandanan

    IPC分类号： C09K8/32 ,  C09K7/06

    CPC分类号： C09K8/32 ,  Y10S507/91

    摘要： This invention relates to an improved oil-base drilling fluid composition and its use. The improved oil-base drilling fluid composition of this invention is characterized by thixotropic properties which result in a yield point of at least 4.0. The composition includes an oil-base continuous phase and a gelling composition. The gelling composition includes a latex material in combination with one or more functional monomers selected from the group consisting of amides, amines, sulfonates, monocarboxylic acids, dicarboxylic acids and combinations thereof and wherein at least one of the monomers includes a nitrogen containing material.

    摘要翻译： 本发明涉及一种改进的油基钻井液组合物及其用途。 本发明改进的油基钻井液组合物的特征在于触变性能，其屈服点至少为4.0。 该组合物包括油基连续相和胶凝组合物。 胶凝组合物包括与选自酰胺，胺，磺酸盐，一元羧酸，二羧酸及其组合的一种或多种官能单体组合的胶乳材料，并且其中至少一种单体包括含氮材料。

    Thermally stable drilling fluid additive
    26.
    发明授权
    Thermally stable drilling fluid additive 失效
    耐热稳定的钻井液添加剂

    公开(公告)号：US4525562A

    公开(公告)日：1985-06-25

    申请号：US501900

    申请日：1983-06-07

    申请人： Arvind D. Patel

    发明人： Arvind D. Patel

    IPC分类号： C08F8/36 ,  C08F212/14 ,  C09K8/24 ,  C08F222/04 ,  C09K7/00

    CPC分类号： C09K8/24 ,  C08F212/14 ,  C08F8/36 ,  C08F2800/20

    摘要： This invention relates to a water soluble polymer and method for its preparation. The water soluble polymer exhibits superior thermal stability characteristics when used as an additive in aqueous drilling fluids. The polymer consists of a major portion of a catechol based monomer and a dicarboxylic acid. Other monomers and materials are added to enhance the functional characteristics of the drilling fluid additive. The method of this invention includes the mixing of monomers, polymerization of that mixture and optionally the steps of hydrolysis and sulfonation.

    摘要翻译： 本发明涉及一种水溶性聚合物及其制备方法。 当用作水性钻井液中的添加剂时，水溶性聚合物表现出优异的热稳定性。 聚合物由基于邻苯二酚的单体和二羧酸的主要部分组成。 加入其它单体和材料以增强钻井液添加剂的功能特性。 本发明的方法包括单体的混合，该混合物的聚合以及任选的水解和磺化步骤。

    LOW TOXICITY SHALE HYDRATION INHIBITION AGENT AND METHOD OF USE
    29.
    发明申请
    LOW TOXICITY SHALE HYDRATION INHIBITION AGENT AND METHOD OF USE 失效
    低毒性SHALE HYDRIC抑制剂及其使用方法

    公开(公告)号：US20110190171A1

    公开(公告)日：2011-08-04

    申请号：US13082973

    申请日：2011-04-08

    申请人： Arvind D. Patel

    发明人： Arvind D. Patel

    IPC分类号： C09K8/06

    CPC分类号： C09K8/12 ,  C09K2208/12

    摘要： A low toxicity composition and method of reducing the swelling of clay in well comprising circulating in the well a water-based fluid comprising a functionally effective concentration of the additive formed from the following reaction of a tertiary amine of the following general formula: wherein R1 and R2 are alkyl or hydroxyalkyl groups with one to three carbon atoms or combinations thereof, and R3 is a hydroxyalkyl group with one to three carbon atoms, with an alkylating agent of the following general formula: R-A wherein R is an alkyl radical with one to three carbon atoms, and A is an organic or inorganic anion selected from the group consisting of sulfate, phosphate, carbonate, and combinations thereof.

    摘要翻译： 一种低毒组合物和减少井中粘土膨胀的方法，包括在井中循环的水基流体，其包含由以下通式的叔胺的以下反应形成的功能有效浓度的添加剂：其中R1和 R2是具有1至3个碳原子的烷基或羟烷基或其组合，并且R 3是具有1至3个碳原子的羟烷基，具有以下通式的烷基化剂：其中R是具有1至3个 碳原子，A是选自硫酸盐，磷酸盐，碳酸盐及其组合的有机或无机阴离子。