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公开(公告)号：US6012524A
公开(公告)日：2000-01-11
申请号：US60535
申请日：1998-04-14
摘要： The present invention relates to improved methods and compositions for sealing subterranean zones penetrated by well bores to reduce their permeabilities and increase their compressive strengths. The methods basically comprise the steps of introducing an aqueous sealing composition into a subterranean zone comprising a polymerizable monomer, a polymerization initiator, a hardenable epoxide containing liquid and a hardening agent, placing the sealing composition by way of the well bore into the subterranean zone and allowing the sealing composition to polymerize and harden whereby the well bore is sealed.
摘要翻译： 本发明涉及用于密封井眼穿透的地下区域的改进方法和组合物，以减少其渗透性并增加其抗压强度。 所述方法基本上包括以下步骤：将水性密封组合物引入包含可聚合单体，聚合引发剂，可硬化环氧化物的液体和硬化剂的地下区域，将密封组合物通过井眼放置到地下区域中， 允许密封组合物聚合和硬化，由此井眼被密封。
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公开(公告)号：US6006836A
公开(公告)日：1999-12-28
申请号：US87405
申请日：1998-05-29
IPC分类号： C09K8/42 , C09K8/50 , C09K8/508 , E21B33/138 , E21B33/13
CPC分类号： E21B33/138 , C09K8/42 , C09K8/50 , C09K8/5086
摘要： The present invention provides improved methods of sealing a bridge plug or the like in a pipe disposed in a well bore. The methods basically include the steps of preparing a hardenable epoxy sealing composition which hardens into a resilient solid mass having a high pipe surface bond strength, placing the epoxy composition into the pipe adjacent to the bridge plug therein and allowing the epoxy composition to harden.
摘要翻译： 本发明提供了在布置在井眼中的管中密封桥塞等的改进方法。 所述方法基本上包括制备硬化环氧密封组合物的步骤，该组合物硬化成具有高管表面粘合强度的弹性固体物质，将环氧组合物置于邻近桥塞的管中，并使环氧组合物硬化。
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公开(公告)号：US5972103A
公开(公告)日：1999-10-26
申请号：US013791
申请日：1998-01-26
申请人： Sudhir Mehta , Richard C. Jones , William J. Caveny , Rickey L. Morgan , Dennis W. Gray , Jiten Chatterji
发明人： Sudhir Mehta , Richard C. Jones , William J. Caveny , Rickey L. Morgan , Dennis W. Gray , Jiten Chatterji
CPC分类号： C04B22/12 , C04B28/04 , C04B40/0039 , C09K8/46
摘要： The present invention provides universal well cement additives and methods. The universal well cement additives improve the properties of a well cement slurry and are basically comprised of iron chloride, an alkali or alkaline-earth metal halide, an organic acid and a hydratable polymer.
摘要翻译： 本发明提供通用井水泥添加剂和方法。 普遍井水泥添加剂改善了水泥浆的性能，并且基本上由氯化铁，碱金属或碱土金属卤化物，有机酸和可水合的聚合物组成。
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公开(公告)号：US5968255A
公开(公告)日：1999-10-19
申请号：US228846
申请日：1999-01-12
申请人： Sudhir Mehta , Richard R. Jones , William J. Caveny , Rickey L. Morgan , Dennis W. Gray , Jiten Chatterji
发明人： Sudhir Mehta , Richard R. Jones , William J. Caveny , Rickey L. Morgan , Dennis W. Gray , Jiten Chatterji
CPC分类号： C04B28/04 , C04B22/12 , C04B40/0039 , C09K8/46 , Y02W30/94
摘要： The present invention provides universal well cement additives and methods. The universal well cement additives improve the properties of a well cement slurry and can be comprised of iron chloride, a dispersing agent, an organic acid, a hydratable polymer and an ultra-fine particulate hydraulic cement.
摘要翻译： 本发明提供通用井水泥添加剂和方法。 通用井水泥添加剂改善了水泥浆的性能，可以由氯化铁，分散剂，有机酸，可水合聚合物和超细颗粒水硬性水泥组成。
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公开(公告)号：US5873413A
公开(公告)日：1999-02-23
申请号：US914594
申请日：1997-08-18
IPC分类号： C09K8/42 , C09K8/50 , C09K8/508 , E21B33/138 , E21B33/13
CPC分类号： C09K8/5086 , C09K8/42 , C09K8/50 , E21B33/138
摘要： The present invention provides methods of modifying the properties of a subterranean stratum penetrated by a well bore to increase the resistance of the stratum to shear failure. The methods basically include the steps of preparing a hardenable epoxy composition having flexibility upon hardening including an epoxide containing liquid or an epoxy resin and an epoxide containing liquid and a hardening agent. The epoxy composition is pumped into the subterranean stratum by way of the well bore and by way of the porosity of the stratum and then allowed to harden in the stratum.
摘要翻译： 本发明提供了改变由井眼穿透的地下层的性质以增加地层对剪切破坏的阻力的方法。 所述方法基本上包括以下步骤：制备在硬化时具有柔软性的可硬化环氧组合物，包括含环氧化物的液体或环氧树脂和含环氧化物的液体和硬化剂。 环氧组合物通过井眼并通过层的孔隙泵送到地层中，然后在层中硬化。
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公开(公告)号：US5713416A
公开(公告)日：1998-02-03
申请号：US720825
申请日：1996-10-02
申请人： Jiten Chatterji , James E. Griffith
发明人： Jiten Chatterji , James E. Griffith
摘要： The present invention provides methods of decomposing gas hydrates in subsea or subterranean wells, the equipment associated with the wells and in subterranean reservoirs containing gas hydrates. The methods basically comprise the steps of combining an acidic liquid with a basic liquid which chemically react exothermically to form a hot salt solution, contacting the gas hydrates with the hot salt solution to decompose at least a portion of the gas hydrates whereby natural gas and water are released therefrom and recovering the released natural gas, water and salt solution.
摘要翻译： 本发明提供了在海底或地下井中分解气体水合物的方法，与井相关的设备和在含有天然气水合物的地下储层中。 所述方法基本上包括将酸性液体与碱性液体组合的步骤，所述碱性液体放热化学反应以形成热盐溶液，使气体水合物与热盐溶液接触以分解至少一部分天然气和水 从中释放并回收释放的天然气，水和盐溶液。
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公开(公告)号：US5672203A
公开(公告)日：1997-09-30
申请号：US693743
申请日：1996-08-07
CPC分类号： C09K8/46 , C04B24/122 , C04B28/02 , C04B2103/22 , C04B2111/00146
摘要： The present invention provides set retarding additives, set retarded hydraulic cement compositions and methods of using the set retarded cement compositions for cementing subterranean zones in wells. A preferred set retarding additive comprises an alkanolamine salt produced by the reaction of a hydroxy carboxy acid, such as tartaric acid, gluconic acid or glucoheptonic acid, with an alkanolamine, such as monoethanolamine, diethanolamine or triethanolamine.
摘要翻译： 本发明提供凝结阻滞添加剂，凝固阻滞水硬性水泥组合物以及使用凝结阻滞水泥组合物在井中固井地下区域的方法。 优选的阻滞添加剂包括通过羟基羧酸（例如酒石酸，葡糖酸或葡庚糖酸）与链烷醇胺如单乙醇胺，二乙醇胺或三乙醇胺反应制备的链烷醇胺盐。
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108.发明授权
公开(公告)号：US5571318A
公开(公告)日：1996-11-05
申请号：US521705
申请日：1995-08-31
CPC分类号： C09K8/46 , C04B24/003 , C04B24/163 , C04B28/04 , C04B7/527 , C04B2111/76 , Y02W30/94
摘要： The present invention provides well cementing methods and compositions for use in cold environments which are particularly suitable for cementing conductor strings in deep water offshore wells. The cement compositions are basically comprised of a relatively coarse particulate hydraulic cement mixed with an ultra fine particulate hydraulic cement, sufficient water to form a pumpable slurry and a fluid loss control additive.
摘要翻译： 本发明提供了在冷环境中使用的良好的固井方法和组合物，其特别适用于在深水近海井中固井导体串。 水泥组合物基本上由与超细颗粒水硬性水泥混合的相当粗糙的颗粒水硬性水泥组成，足够的水形成可泵送浆料和流体损失控制添加剂。
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公开(公告)号：US4455169A
公开(公告)日：1984-06-19
申请号：US371848
申请日：1982-04-26
申请人： Jiten Chatterji , Bobby G. Brake
发明人： Jiten Chatterji , Bobby G. Brake
IPC分类号： C04B24/38 , C04B28/02 , C08B11/193 , C09K8/50 , C04B7/353
CPC分类号： C09K8/50 , C04B24/383 , C04B28/02 , C08B11/193
摘要： Salt water cement slurries having low water loss when in contact with water permeable earth formations and additives for reducing water loss from salt water cement slurries are provided. The additives are comprised of very low molecular weight carboxymethylhydroxyethylcellulose polymers. Methods of using the additives are also provided.
摘要翻译： 提供与水渗透地层接触的水分低水泥浆料和用于减少盐水水泥浆料失水的添加剂。 添加剂由非常低分子量的羧甲基羟乙基纤维素聚合物组成。 还提供使用添加剂的方法。
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公开(公告)号：US4433731A
公开(公告)日：1984-02-28
申请号：US480087
申请日：1983-03-30
申请人： Jiten Chatterji , Bobby G. Brake , John M. Tinsley
发明人： Jiten Chatterji , Bobby G. Brake , John M. Tinsley
CPC分类号： C04B24/383 , C09K8/206 , C09K8/46 , C09K8/487 , C09K8/514 , C04B2103/46
摘要： Liquid water loss reducing additives for use in cement slurries are provided comprised of aqueous solutions of low molecular weight carboxymethylhydroxyethylcellulose polymers. Methods of using the additives are also provided.
摘要翻译： 由低分子量羧甲基羟乙基纤维素聚合物的水溶液组成的水泥浆中使用的液态减水剂添加剂。 还提供使用添加剂的方法。
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