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    Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymers
    5.
    发明授权
    Shale stabilizing drilling fluids comprising calcium chloride and low molecular weight low charge cationicpolyacrylamide copolymers 失效
    包含氯化钙和低分子量低电荷阳离子聚丙烯酰胺共聚物的页岩稳定钻井液

    公开(公告)号：US06355600B1

    公开(公告)日：2002-03-12

    申请号：US09411346

    申请日：1999-10-01

    申请人： James E. Norfleet ,  Michael A. Jarrett ,  Patricia A. Potts ,  Tao Xiang ,  Frank E. Evans, Jr.

    发明人： James E. Norfleet ,  Michael A. Jarrett ,  Patricia A. Potts ,  Tao Xiang ,  Frank E. Evans, Jr.

    IPC分类号： C09K702

    CPC分类号： C09K8/12 ,  C09K2208/18

    摘要： A drilling fluid and method of using same. The drilling fluid comprises water as a continuous phase, an amount of calcium chloride, and a quantity of a polyacrylamide copolymer. The amount of calcium chloride and the quantity of polyacrylamide copolymer in the drilling fluid are sufficient to produce a rate of penetration approaching that achieved using a synthetic oil-based drilling fluid while preventing substantial screen blinding. In a preferred embodiment, the continuous phase also comprises a second amount of a monovalent salt effective to increase gas hydrate suppression and decrease density when compared to a fluid consisting essentially of only a divalent salt in the absence of the monovalent salt.

    摘要翻译： 钻井液及其使用方法。 钻井液包括作为连续相的水，一定量的氯化钙和一定量的聚丙烯酰胺共聚物。 钻井液中氯化钙的量和聚丙烯酰胺共聚物的量足以产生接近使用合成油基钻井液达到的渗透速率，同时防止大量的筛网堵塞。 在一个优选的实施方案中，连续相还包含第二量的一价盐，当与不存在一价盐时基本上仅由二价盐组成的流体相比，这有效地增加气体水合物的抑制和降低密度。

    Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids
    6.
    发明授权
    Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids 有权
    用于最小化乳液型钻井液系统，乳液型钻井液系统和点样液体破裂的方法

    公开(公告)号：US07977280B2

    公开(公告)日：2011-07-12

    申请号：US12082102

    申请日：2008-04-08

    申请人： Michael A. Jarrett

    发明人： Michael A. Jarrett

    IPC分类号： C09K7/00

    CPC分类号： C09K8/28 ,  C09K8/36 ,  C09K2208/08 ,  Y10S507/906

    摘要： A process for minimizing breaking of an emulsion type drilling fluid system comprising one or more fibrous lost circulation material, the process comprising: determining the water retention value of one or more candidate fibrous lost circulation materials; and, formulating the emulsion type drilling fluid system to comprise fibrous lost circulation material consisting of one or more of the candidate fibrous lost circulation materials having a water retention value of about 1 or less.

    摘要翻译： 一种用于使包含一种或多种纤维状流体循环材料的乳液型钻井液系统的破裂最小化的方法，所述方法包括：确定一种或多种候选纤维性缺水循环材料的保水值; 并且，将乳液型钻井液系统配制成包含由具有约1或更小的保水值的一种或多种候选纤维状缺水循环材料组成的纤维性缺水循环材料。

    Application of aluminum chlorohydrate in viscosifying brine for carrying proppants in gravel packing
    7.
    发明授权
    Application of aluminum chlorohydrate in viscosifying brine for carrying proppants in gravel packing 有权
    在粘稠盐水中使用水合氯铝酸盐，在砾石包装中运载支撑剂

    公开(公告)号：US06211120B1

    公开(公告)日：2001-04-03

    申请号：US09247168

    申请日：1999-02-09

    申请人： John Charles Welch ,  Allen Gabrysch ,  Benn Voll ,  Brett Collins ,  Michael A. Jarrett ,  Cedric Nix

    发明人： John Charles Welch ,  Allen Gabrysch ,  Benn Voll ,  Brett Collins ,  Michael A. Jarrett ,  Cedric Nix

    IPC分类号： C09K702

    CPC分类号： C09K8/68 ,  C09K8/665 ,  C09K2208/30 ,  E21B43/267

    摘要： New compositions have been discovered which are useful as slurry concentrates to carry solid particles along in a fluid. A non-limiting example would be to carry proppants in a concentrate to a completion fluid being pumped downhole in a hydrocarbon recovery operation. The composition employs both a trivalent salt, such as aluminum chlorohydrate, as a viscosifying agent, and a surfactant. Surprisingly, it has been discovered that a synergistic effect is present between the aluminum chlorohydrate and the surfactant in that less of each component is required when both are used together to suspend the same amount of solids, than if one or the other is used separately. The viscoelasticity of the concentrate may be easily broken by dilution; other mechanisms are also anticipated.

    摘要翻译： 已经发现了新的组合物，其可用作浆料浓缩物沿着流体携带固体颗粒。 非限制性的实例是在烃回收操作中将浓缩物中的支撑剂运送到在井下泵送的完井流体。 组合物使用三价盐，例如水合氯化铝，作为增粘剂和表面活性剂。 令人惊讶的是，已经发现，在水合氯铝酸盐和表面活性剂之间存在协同效应，因为当两者都一起使用时，需要较少的每种组分，因为如果分开使用一种或另一种，则需要同时悬浮相同量的固体。 浓缩物的粘弹性可能会因稀释而容易破裂; 还预期其他机制。

    Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids
    8.
    发明申请
    Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids 有权
    用于最小化乳液型钻井液系统，乳液型钻井液系统和点样液体破裂的方法

    公开(公告)号：US20080194429A1

    公开(公告)日：2008-08-14

    申请号：US12082102

    申请日：2008-04-08

    申请人： Michael A. Jarrett

    发明人： Michael A. Jarrett

    IPC分类号： C09K8/035 ,  C09K8/02

    CPC分类号： C09K8/28 ,  C09K8/36 ,  C09K2208/08 ,  Y10S507/906

    摘要： A process for minimizing breaking of an emulsion type drilling fluid system comprising one or more fibrous lost circulation material, the process comprising: determining the water retention value of one or more candidate fibrous lost circulation materials; and, formulating the emulsion type drilling fluid system to comprise fibrous lost circulation material consisting of one or more of the candidate fibrous lost circulation materials having a water retention value of about 1 or less.

    摘要翻译： 一种用于使包含一种或多种纤维状流体循环材料的乳液型钻井液系统的破裂最小化的方法，所述方法包括：确定一种或多种候选纤维性缺水循环材料的保水值; 并且，将乳液型钻井液系统配制成包含由具有约1或更小的保水值的一种或多种候选纤维状缺水循环材料组成的纤维性缺水循环材料。

    Use of alkoxylated surfactants and aluminum chlorohydrate to improve brine-based drilling fluids
    10.
    发明授权
    Use of alkoxylated surfactants and aluminum chlorohydrate to improve brine-based drilling fluids 失效
    使用烷氧基化表面活性剂和水合氯铝来改善基于盐水的钻井液

    公开(公告)号：US06194355B1

    公开(公告)日：2001-02-27

    申请号：US09248310

    申请日：1999-02-09

    申请人： Michael A. Jarrett ,  Harold R. Krause ,  John C. Welch ,  Allen Gabrysch ,  Patricia Potts

    发明人： Michael A. Jarrett ,  Harold R. Krause ,  John C. Welch ,  Allen Gabrysch ,  Patricia Potts

    IPC分类号： C09K702

    CPC分类号： C09K8/04 ,  C09K8/12

    摘要： A drilling fluid having a brine base fluid, aluminum chlorohydrate as a viscosifying agent, an alkoxylated surfactant, and an amphoteric polymer encapsulant has been found to have excellent viscoelasticity and suspension characteristics. Surprisingly, it has been discovered that a synergistic effect is present between the aluminum chlorohydrate and the surfactant such that less of each component is required when both are used together to suspend the same amount of solids, than if one or the other is used separately.

    摘要翻译： 已经发现具有盐水基础流体，水合氯化铝作为增粘剂，烷氧基化表面活性剂和两性聚合物密封剂的钻井液具有优异的粘弹性和悬浮性。 令人惊奇的是，已经发现，在水合氯铝酸盐和表面活性剂之间存在协同效应，因此当两者都共同使用时悬浮相同量的固体物质需要较少的每种组分，这要比单独使用或另外使用一种。