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公开(公告)号：US06823940B2
公开(公告)日：2004-11-30
申请号：US10716726
申请日：2003-11-19
申请人： B. Raghava Reddy , Larry S. Eoff , Donald L. Whitfill , J. Michael Wilson , Denise Berryhill , Russel M. Fitzgerald , Thomas E. Becker , Jimmie D. Weaver
发明人： B. Raghava Reddy , Larry S. Eoff , Donald L. Whitfill , J. Michael Wilson , Denise Berryhill , Russel M. Fitzgerald , Thomas E. Becker , Jimmie D. Weaver
IPC分类号： E21B33138
CPC分类号： C09K8/12 , C09K8/24 , C09K8/508 , C09K8/512 , C09K8/5751 , Y10S507/903
摘要： Methods of consolidating unconsolidated weak zones or formations and forming chemical casings include drilling a well bore with a drilling fluid having a pH in the range of from about 6 to 10 and that comprises water, a polymeric cationic catalyst which is adsorbed on the mineral surfaces in the weak zone, a particulate curable solid thermoset resin and a delay acid catalyst for curing the solid resin, and forming a filter cake on the walls of the well bore. The filter cake is then contacted with a treating fluid comprising a water soluble or water dispersible polymer which is capable of being cross-linked by a thermoset resin and causing the resin to be hard and tough when cured, and a water soluble or dispersible thermoset resin, whereby the treating fluid components deposit on the filter cake and the thermoset resin cures into a hard and tough cross-linked chemical casing thereon.
摘要翻译： 固结未固结的弱区或结构并形成化学壳体的方法包括用具有约6至10范围内的pH的钻井液钻井孔，并且包括水，吸附在矿物表面上的聚合阳离子催化剂 弱区，可固化固体的固体热固性树脂和用于固化固体树脂的延迟酸催化剂，以及在孔的壁上形成滤饼。 然后将滤饼与包含水溶性或水分散性聚合物的处理流体接触，所述聚合物能够通过热固性树脂交联并使树脂在固化时硬而坚韧，并且水溶性或分散性热固性树脂 ，由此处理流体组分沉积在滤饼上，并且热固性树脂固化成其上坚硬且韧性的交联化学外壳。
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12.发明授权Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition 有权当与水泥组合物混合时，钻井液能增强水泥组合物的物理性能公开(公告)号：US09022147B2
公开(公告)日：2015-05-05
申请号：US13150438
申请日：2011-06-01
CPC分类号： C09K8/08 , C04B28/02 , C09K8/032 , C09K8/06 , C09K8/467 , C09K2208/00 , C04B2103/0068 , C04B2103/12 , C04B2103/22 , C04B2103/408 , C04B2103/44 , C04B12/04 , C04B14/28 , C04B14/30 , C04B14/308 , C04B14/368 , C04B24/02 , C04B24/18 , C04B24/24 , C04B24/38 , C04B24/383
摘要： According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes with three parts of a cement composition consisting of water and cement, the drilling fluid cement composition mixture develops a compressive strength of at least 1,200 psi. According to another embodiment, a method of using the drilling fluid comprises the steps of: introducing the drilling fluid into at least a portion of a subterranean formation, wherein at least a portion of the drilling fluid is capable of mixing with a cement composition.
摘要翻译： 根据一个实施方案，钻井液包括：水和凝固加速器，其中钻井液具有小于20lb * ft / 100 sq ft的10分钟凝胶强度，其中钻井液的密度在约 9至约14磅/加仑，其中钻井液保持倾倒至少5天，并且其中当至少一部分钻井液与由水和水泥组成的水泥组合物的三部分混合时，钻井液水泥组合物 混合物产生至少1,200psi的抗压强度。 根据另一个实施例，使用钻井液的方法包括以下步骤：将钻井流体引入地下地层的至少一部分，其中钻井液的至少一部分能够与水泥组合物混合。
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13.发明授权Engineered methods and materials for wellbore strengthening in subterranean operations 有权在地下作业中进行井筒加固的工程方法和材料公开(公告)号：US08887808B2
公开(公告)日：2014-11-18
申请号：US13292516
申请日：2011-11-09
CPC分类号： E21B21/08 , C09K8/03 , C09K8/516 , C09K2208/08 , E21B7/00 , E21B21/003 , E21B33/12
摘要： A method of wellbore strengthening may include providing a wellbore strengthening fluid comprising a drilling fluid, a particulate, and a fiber; introducing the wellbore strengthening fluid into a wellbore penetrating a subterranean formation; and forming a plug comprising the particulate and the fiber in a void near the wellbore, the plug being capable of maintaining integrity at about 1000 psi or greater overbalance pressure.
摘要翻译： 井眼加固的方法可以包括提供包括钻井液，颗粒和纤维的井眼加强流体; 将井眼加强流体引入穿透地下地层的井眼; 并且在孔眼附近的空隙中形成包含颗粒和纤维的塞子，该塞子能够在约1000psi或更大的超平衡压力下保持完整性。
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14.发明申请Lost Circulation Material With A Multi-Modal Large Particle Size Distribution 审中-公开具有多模态大粒径分布的失重循环材料公开(公告)号：US20140038857A1
公开(公告)日：2014-02-06
申请号：US13563519
申请日：2012-07-31
IPC分类号： C09K8/035
CPC分类号： C09K8/035 , C09K2208/04
摘要： Compositions for lost circulation materials (LCM) and methods for using same in drilling and/or completing wellbores that help solve lost circulation problems in a wide range of fracture sizes, thereby advantageously eliminating the need for a variety of products for lost circulation in a field at any one time. An unexpected synergy and improved reduction in lost circulation is obtained. The invention provides specific LCM components in specific ratios that are analogs to lost circulation fractures and that yield superior performance in preventing or alleviating lost circulation in drilling and cementing boreholes. The invention compositions have a multi-modal particle size distribution (PSD) which provides a higher concentration of component materials in the same range of two or more fracture widths, thus allowing plugging to occur over a wider range than a single mode or narrow PSD.
摘要翻译： 用于漏失循环材料的组合物（LCM）及其在钻井和/或完井孔中的使用方法，其有助于解决大范围的断裂尺寸中的流失问题，从而有利地消除了对各种产品在场中的流失的需要 在任何一个时间 获得了意想不到的协同效应和改善的流失量的减少。 本发明提供特定比例的特定比例的LCM组分，其类似于失水循环裂缝，并且在防止或减轻钻井和固井钻孔中的流失中产生优异的性能。 本发明组合物具有多模态粒度分布（PSD），其在两个或多个断裂宽度的相同范围内提供更高浓度的组分材料，从而允许在比单模式或窄PSD更宽的范围内发生堵塞。
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15.发明授权System and method for removing particles from a well bore penetrating a possible producing formation 失效用于从穿透可能的生产地层的井眼中去除颗粒的系统和方法公开(公告)号：US06968898B2
公开(公告)日：2005-11-29
申请号：US10185910
申请日：2002-06-28
CPC分类号： C09K8/52 , C09K8/145 , E21B21/00 , Y10S507/925
摘要： A system and method for removing particles from a well bore penetrating a possible hydrocarbon producing formation, according to which drilling fluid is mixed with a weighted material, and the mixture is introduced into a well bore so that the mixture scours any particles accumulated in the well bore. A well-completion fluid is introduced into the well bore that dissolves the weighted material.
摘要翻译： 一种用于从穿透可能的生成烃的地层的井眼中去除颗粒的系统和方法，根据该系统和钻井液与加权材料混合，并将混合物引入井眼中，使得混合物冲洗积聚在井中的任何颗粒 孔。 将完井流体引入井眼中，以溶解加权材料。
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公开(公告)号：US5012869A
公开(公告)日：1991-05-07
申请号：US592747
申请日：1990-10-03
摘要： A method of forming a flow-restricting layer on a wellbore surface prior to cementing a casing string in the wellbore. The flow-restricting layer is formed by reaction of an injected fluid with divalent ions at and near the wellbore surface. The injected fluid is a composition containing a water-soluble polymer and one or more potassium salts.
摘要翻译： 在将套管柱固定在井眼中之前在井眼表面上形成流动限制层的方法。 流动限制层通过注入的流体与井眼表面处和附近的二价离子的反应形成。 注入流体是含有水溶性聚合物和一种或多种钾盐的组合物。
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公开(公告)号：US3962099A
公开(公告)日：1976-06-08
申请号：US465027
申请日：1974-04-29
申请人： Donald L. Whitfill
发明人： Donald L. Whitfill
摘要： An improved water base drilling mud composition wherein calcium ions are controlled and converted to water-insoluble plant nutrient compounds by the use of monocalcium phosphate compounds, said composition comprising an aqueous suspension containing from about 5 to 35 pounds per barrel of a clay material, from about 1 to 5 pounds per barrel of an alkaline earth metal hydroxide selected from the group consisting of calcium hydroxide and mixtures of calcium hydroxide and barium hydroxide, and at least a stoichiometric amount, based on the weight of said alkaline earth metal hydroxide of said monocalcium phosphate containing compound.
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公开(公告)号：US07776797B2
公开(公告)日：2010-08-17
申请号：US11337713
申请日：2006-01-23
摘要： A lost circulation composition for use in a wellbore comprising a crosslinkable polymer system and a filler.
摘要翻译： 一种用于井眼的易挥发组合物，其包含可交联聚合物体系和填料。
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公开(公告)号：US6152227A
公开(公告)日：2000-11-28
申请号：US176180
申请日：1998-10-21
摘要： Drilling fluids are designed for drilling and cementing through shallow water flows and unconsolidated formations. Such drilling fluids utilize hollow microspheres to increase the volume of the drilling fluid without adding too much weight to the drilling fluid. The drilling fluid is also designed to employ an admixture of silicate, high surface area fibrous material, deformable graphite particles, and an activatable cementitious material to stabilize unconsolidated formations and form a tough filter cake that will bond with the cement casing.
摘要翻译： 钻井液设计用于通过浅水流和未固结地层钻井和固井。 这种钻井液利用中空微球体来增加钻井液体积，而不会增加钻井液的重量。 钻井液还被设计成使用硅酸盐，高表面积纤维材料，可变形石墨颗粒和可活化的水泥质材料的混合物，以稳定未固结的结构并形成将与水泥套管结合的坚韧的滤饼。
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20.发明授权Method for inhibiting the initiation and propagation of formation fractures while drilling and casing a well 失效在钻井和套管井时抑制地层断裂的起始和扩展的方法
公开(公告)号：US5207282A
公开(公告)日：1993-05-04
申请号：US956919
申请日：1992-10-05
申请人： Giin-Fa Fuh , Nobuo Morita , Donald L. Whitfill , David A. Strah
发明人： Giin-Fa Fuh , Nobuo Morita , Donald L. Whitfill , David A. Strah
摘要： Fracture initiation and propagation during drilling or running casing in a well are prevented or inhibited by including an effective amount of a specially sized solid particulate loss prevention material in the well fluid prior to encountering formation breakdown in a susceptible zone.
摘要翻译： 在易受影响的区域遇到地层破坏之前，通过在井液中包含有效量的特殊尺寸的固体颗粒物丢失防止材料，可以防止或抑制井中钻井或运行中的套管中的断裂起始和扩散。
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