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1. 发明申请

WO1997026310A1 VISCOSIFICATION OF HIGH DENSITY BRINES 审中-公开
标题翻译：高密度粘土的粘度
公开(公告)号：WO1997026310A1
公开(公告)日：1997-07-24
申请号：PCT/US1997000819
申请日：1997-01-17
申请人： GREAT LAKES CHEMICAL CORPORATION
发明人： GREAT LAKES CHEMICAL CORPORATION , VOLLMER, Daniel, P. , JAVORA, Paul, H. , HORTON, Robert, L.
IPC分类号： C09K07/00
CPC分类号： C09K3/00 , C09K8/08 , C09K8/12
摘要： The present invention provides compositions useful for viscosifying aqueous fluids, methods for making them and methods for using them. In one aspect of the invention, inventive compositions comprise a prehydrating alcohol having at least two hydroxyl groups and having a molecular weight of from about 60 to about 600; an inorganic salt; and a polymer. In a preferred aspect of the invention, the viscosifier composition additionally comprises a solvent having a molecular weight of from about 75 to about 1000. According to another aspect of the invention, inventive compositions comprise a prehydrating alcohol; an inorganic salt; and a polymer; and the composition is essentially free from water. Inventive compositions find advantageous use in viscosifying fluids utilized in subterranean drilling activities such as, for example, drilling, drill-in, completion, hydraulic fracturing, work-over, packer, well treating, testing, spacer, or hole abandonment fluids.
摘要翻译：本发明提供了可用于增稠水性流体的组合物，其制备方法和使用它们的方法。在本发明的一个方面，本发明的组合物包含具有至少两个羟基并且分子量为约60至约600的预水解醇; 无机盐; 和聚合物。在本发明的优选方面，增粘剂组合物另外包含分子量为约75至约1000的溶剂。根据本发明的另一方面，本发明组合物包含预水合醇; 无机盐; 和聚合物; 并且组合物基本上不含水。本发明的组合物在地下钻井活动例如钻井，钻进，完井，水力压裂，加工，封隔器，井处理，测试，间隔件或抛空液中的粘稠流体中发现有利的用途。

2. 发明申请

WO1997026311A1 HIGH DENSITY VISCOSIFIED AQUEOUS COMPOSITIONS 审中-公开
标题翻译：高密度粘度水性组合物
公开(公告)号：WO1997026311A1
公开(公告)日：1997-07-24
申请号：PCT/US1997001176
申请日：1997-01-16
申请人： GREAT LAKES CHEMICAL CORPORATION
发明人： GREAT LAKES CHEMICAL CORPORATION , VOLLMER, Daniel, P. , JAVORA, Paul, H. , HORTON, Robert, L.
IPC分类号： C09K07/02
CPC分类号： C09K8/08 , C09K8/12 , C09K2208/18
摘要： Advantageous aqueous mixed salt systems viscosified with water-soluble or water-dispersable polymers which are superior to corresponding single salt systems of similar densities are provided. The mixed salt systems comprise water; a water-soluble or water-dispersable polymer capable of viscosifying an aqueous medium; one or more cations including a member selected from the group consisting of lithium, sodium, potassium, cesium, magnesium, calcium, zinc, or mixtures thereof; and one or more anions including a member selected from the group consisting of chloride, bromide, iodide, formate, nitrate, acetate, cyanate, thiocyanate, a zinc complex anion or mixtures thereof; there being present either at least two cations or at least two anions. Inventive viscosified mixed salt systems display - under such stressing factors as aging, heat, mechanical agitation, and shear - greater stability compared to the single salt systems of similar densities. Also provided are methods for making viscosified mixed salt systems and methods for advantageously using the same as drilling, drill-in, completion, hydraulic fracturing, work-over, packer, well treating, testing, spacer, or hole abandonment fluids.
摘要翻译：提供了优于具有相似密度的相应单盐体系的水溶性或水分散性聚合物增稠的有利的水性混合盐体系。混合盐系统包括水; 水溶性或水分散性聚合物，其能够使水性介质变稠; 一种或多种阳离子，包括选自锂，钠，钾，铯，镁，钙，锌或其混合物的成员; 和一种或多种阴离子，其包括选自氯化物，溴化物，碘化物，甲酸盐，硝酸盐，乙酸盐，氰酸盐，硫氰酸盐，锌络合物阴离子或其混合物的成员; 存在至少两个阳离子或至少两个阴离子。本发明的稠化混合盐系统在与类似密度的单盐体系相比，在诸如老化，热，机械搅拌和剪切之类的应力因素下显示出更大的稳定性。还提供了用于制造粘稠混合盐体系的方法和有利地使用它们的方法，例如钻井，钻进，完井，水力压裂，研磨，封隔器，井处理，测试，间隔物或抛空液。

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