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1.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
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。
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2.发明授权Water based fluids comprising multivalent salts and low molecular weight, low charge cationic polyacrylamide copolymers 失效包含多价盐和低分子量低电荷阳离子聚丙烯酰胺共聚物的水基流体公开(公告)号：US06855671B2
公开(公告)日：2005-02-15
申请号：US10095020
申请日：2002-03-11
CPC分类号： C09K8/12 , C09K2208/18
摘要： A drilling system fluid and method of using same. The drilling system fluid comprises water as a continuous phase, an amount of a multivalent metal, and a quantity of a water soluble polyacrylamide copolymer having a charge density of at least about 1%. In a preferred embodiment, the fluid 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： 钻井系统流体及其使用方法。 钻井系统流体包括作为连续相的水，一定量的多价金属和一定量的电荷密度为至少约1％的水溶性聚丙烯酰胺共聚物。 在一个优选的实施方案中，与基本上仅在不存在一价盐的情况下仅由二价盐组成的流体相比，流体还包含有效增加气体水合物抑制和降低密度的第二量的单价盐。
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3.发明授权Fluids for use in drilling and completion operations comprising water insoluble colloidal complexes for improved rheology and filtration control 失效用于钻井和完井操作的流体，包括用于改进流变学和过滤控制的水不溶性胶体配合物
公开(公告)号：US5919738A
公开(公告)日：1999-07-06
申请号：US823851
申请日：1997-03-25
申请人： James E. Norfleet , Michael A. Jarrett , William M. Dye , Dennis K. Clapper , Geoffrey Robinson , Ronald G. Bland , John B. Weirich , Billy G. Chesser
发明人： James E. Norfleet , Michael A. Jarrett , William M. Dye , Dennis K. Clapper , Geoffrey Robinson , Ronald G. Bland , John B. Weirich , Billy G. Chesser
CPC分类号： C09K8/12 , C09K8/22 , C09K2208/18
摘要： The present invention provides a method of preparing a fluid for use in drilling and completion operations comprising mixing a fluid comprising a salt of an alkaline earth metal with a nonionic colloid-forming material in an amount and under conditions sufficient to convert a majority of said nonionic colloid-forming material into water insoluble hydrated colloidal complexes comprising hydrated ions of said alkaline earth metal complexed with said nonionic colloid-forming material, said complexes being effective to improve a property of said fluid selected from the group consisting of rheology, fluid loss control, and a combination thereof.
摘要翻译： 本发明提供了一种制备用于钻井和完井操作的流体的方法，包括将包含碱土金属盐的流体与非离子胶体形成材料混合，所述流体的量足以将大部分所述非离子表面活性剂 胶体形成材料成为水不溶性水合胶体复合物，其包含与所述非离子胶体形成材料络合的所述碱土金属的水合离子，所述配合物有效地改善所述流体的性质，所述流体选自流变性，流体损失控制， 及其组合。
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公开(公告)号：US08273689B2
公开(公告)日：2012-09-25
申请号：US10792056
申请日：2004-03-03
CPC分类号： C10M173/00 , C09K8/035 , C10M2201/041 , C10M2201/062 , C10M2207/126 , C10M2209/103 , C10M2209/104 , C10M2209/105 , C10M2217/024 , C10M2221/02 , C10N2210/02
摘要： Lubricants and drilling fluid systems comprising lubricants which form a coherent lubricating film on metal equipment, thereby prolonging equipment life even under a wide variety of conditions, including high temperature and/or high pressure conditions.
摘要翻译： 润滑剂和钻井液系统包括润滑剂，其在金属设备上形成相干润滑膜，从而即使在包括高温和/或高压条件在内的各种条件下也能延长设备寿命。
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