-
公开(公告)号：US4169797A
公开(公告)日：1979-10-02
申请号：US846060
申请日：1977-10-27
CPC分类号： E21B43/24 , C09K8/74 , C09K8/76 , Y10S507/903 , Y10S507/923 , Y10S507/933
摘要： Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operation, are provided. Said compositions comprise water, a water-soluble cellulose ether, an acid, a water-soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said cellulose ether and said acid, and a reducing agent capable of reducing said metal and causing said gelation.
摘要翻译： 提供适用于地下地层的基质酸化或断裂酸化的凝胶状酸性组合物，以及在酸化操作中使用所述组合物的方法。 所述组合物包含水，水溶性纤维素醚，酸，多价金属的水溶性化合物，其中金属可以还原成较低的多价态并引起含有所述纤维素醚和所述酸的水的凝胶化， 以及能够还原所述金属并导致所述凝胶化的还原剂。
-
公开(公告)号：US4146486A
公开(公告)日：1979-03-27
申请号：US846063
申请日：1977-10-27
申请人： James E. Hessert , Brent J. Bertus
发明人： James E. Hessert , Brent J. Bertus
CPC分类号： C09K8/905 , C09K8/76 , Y10S507/903 , Y10S507/923 , Y10S507/933
摘要： Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-dispersible biopolysaccharide, an acid, a water-soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said biopolysaccharide and said acid, and a reducing agent capable of reducing said metal and causing said gelation.
-
公开(公告)号：US4068720A
公开(公告)日：1978-01-17
申请号：US643985
申请日：1975-12-24
CPC分类号： E21B43/24 , C09K8/76 , C09K8/90 , Y10S507/903
摘要： Gelled acidic compositions suitable for either matrix acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-soluble cellulose ether, an acid, a water soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said cellulose ether and said acid, and a reducing agent capable of reducing said metal and causing said gelation.
-
公开(公告)号：US4068714A
公开(公告)日：1978-01-17
申请号：US643986
申请日：1975-12-24
申请人： James E. Hessert , Brent J. Bertus
发明人： James E. Hessert , Brent J. Bertus
CPC分类号： C09K8/905 , C09K8/76 , Y10S507/903 , Y10S507/923 , Y10S507/933
摘要： Gelled acidic compositions suitable for either matrix acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions in acidizing operations, are provided. Said compositions comprise water, a water-dispersible biopolysaccharide, an acid, a water soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said biopolysaccharide and said acid, and a reducing agent capable of reducing said metal and causing said gelation.
摘要翻译： 提供了适用于地下地层的基质酸化或断裂酸化的凝胶状酸性组合物，以及在酸化操作中使用所述组合物的方法。 所述组合物包含水，水分散性生物多糖，酸，多价金属的水溶性化合物，其中所述金属可以还原成较低的多价态并引起含有所述生物多糖和所述酸的水的凝胶化， 能够还原所述金属并导致所述凝胶化的还原剂。
-
公开(公告)号：USRE29716E
公开(公告)日：1978-08-01
申请号：US799611
申请日：1977-05-23
CPC分类号： C09K8/887 , C09K8/12 , C09K8/24 , Y10S507/903
摘要： Improvements in secondary recovery operations for the recovery of oil, and improvements in well drilling operations, are accomplished through the use of aqueous mediums comprising aqueous gels prepared from water and certain polymers such as polyacrylamides and related polymers.
-
公开(公告)号：US07510004B1
公开(公告)日：2009-03-31
申请号：US10666658
申请日：2003-09-19
摘要： A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations. The composition is economically produced, preserves the wellbore for future reentry in plugging operations, inhibits corrosion of casing by the hydration of water, inhibits the leaching of hazardous metal into the environment, and continuously expands in the presence of water.
摘要翻译： 用于地下地层的可溶胀聚合物凝胶组合物。 该组合物包含水，水溶性聚合物，水溶性交联体系和溶胀剂。 交联体系可以是氧化还原体系或螯合体系。 聚合物和交联体系的量有效地形成基本上均匀反应的三维凝胶结构。 向凝胶溶液中加入足以使凝胶体积增加预定百分比的溶胀剂。 溶胀剂可以是天然或合成剂。 可以加入增强剂以增加组合物的凝胶强度。 该组合物具有许多用途，并且在石油工业应用中特别有用，例如堵塞井，密封套管泄漏和减少含水烃地层的水分产生。 该组合物经济地生产，保留井筒，以防止堵塞作业中的后续再入，通过水合水分抑制套管的腐蚀，抑制有害金属浸入环境中，并在水的存在下不断膨胀。
-
7.发明授权
公开(公告)号：US4276935A
公开(公告)日：1981-07-07
申请号：US89421
申请日：1979-10-30
IPC分类号： C09K8/502 , C09K8/82 , E21B43/32 , E21B33/138 , E21B43/00
摘要： Excessive water production from a producing gas well is substantially reduced by the injection of a hydrocarbon-diluted water-in-oil emulsion comprising a viscosifying polymer such as polyacrylamide, the injected emulsified polymer swelling on contact with connate water in the subsurface gas producing formation to restrict transfer of water therethrough toward the producing gas well.
摘要翻译： 通过注入包含增粘聚合物如聚丙烯酰胺的烃稀释的油包水乳液，可以显着降低来自生产气井的过量水分，所述注入的乳化聚合物在地下产气地层中与原生水接触时膨胀，以膨胀 限制水通过其向井中输送。
-
公开(公告)号：US4172041A
公开(公告)日：1979-10-23
申请号：US846059
申请日：1977-10-27
CPC分类号： E21B43/24 , C09K8/76 , Y10S507/923 , Y10S507/933
摘要： Gelled acidic compositions suitable for either matrix-acidizing or fracture-acidizing of subterranean formations, and methods of using said compositions, are provided. Said compositions comprise water, a water-dispersible polymer of acrylamide, an acid, a water-soluble compound of a polyvalent metal wherein the metal can be reduced to a lower polyvalent valence state and cause gelation of the water containing said polymer and said acid, and a reducing agent capable of reducing said metal and causing said gelation.
摘要翻译： 提供了适用于地下地层的基质酸化或断裂酸化的凝胶状酸性组合物，以及使用所述组合物的方法。 所述组合物包括水，丙烯酰胺的水分散性聚合物，酸，多价金属的水溶性化合物，其中金属可以还原成较低的多价态并引起含有所述聚合物和所述酸的水的凝胶化， 以及能够还原所述金属并导致所述凝胶化的还原剂。
-
9.发明授权
公开(公告)号：US4120361A
公开(公告)日：1978-10-17
申请号：US612514
申请日：1975-09-11
CPC分类号： C09K8/887 , C09K8/501 , C09K8/512 , E21B33/138
摘要： A method for reducing the quantity of water produced from a well bore-penetrated subterranean formation and for increasing the production rate of fluid hydrocarbons produced from said formation. Said method comprises injecting into said formation an aqueous solution of a partially hydrolyzed polyacrylamide, and contacting said polyacrylamide in situ with an aqueous solution containing divalent and/or trivalent metal cations.
摘要翻译： 一种用于减少从井眼穿透的地层产生的水的量并且用于提高从所述地层产生的流体烃的生产速率的方法。 所述方法包括向所述地层注入部分水解的聚丙烯酰胺的水溶液，并将所述聚丙烯酰胺原位与含有二价和/或三价金属阳离子的水溶液接触。
-
公开(公告)号：US06667279B1
公开(公告)日：2003-12-23
申请号：US08969680
申请日：1997-11-13
IPC分类号： C09K300
CPC分类号： C08L1/26 , C08L1/286 , C09K8/426 , C09K8/44 , C09K8/512 , Y10S507/903 , C08L2666/02
摘要： A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations. The composition is economically produced, preserves the wellbore for future reentry in plugging operations, inhibits corrosion of casing by the hydration of water, inhibits the leaching of hazardous metal into the environment, and continuously expands in the presence of water.
摘要翻译： 用于地下地层的可溶胀聚合物凝胶组合物。 该组合物包含水，水溶性聚合物，水溶性交联体系和溶胀剂。 交联体系可以是氧化还原体系或螯合体系。 聚合物和交联体系的量有效地形成基本上均匀反应的三维凝胶结构。 向凝胶溶液中加入足以使凝胶体积增加预定百分比的溶胀剂。 溶胀剂可以是天然或合成剂。 可以加入增强剂以增加组合物的凝胶强度。 该组合物具有许多用途，并且在石油工业应用中特别有用，例如堵塞井，密封套管泄漏和减少含水烃地层的水分产生。 该组合物经济地生产，保留井筒，以防止堵塞作业中的后续再入，通过水合水分抑制套管的腐蚀，抑制有害金属浸入环境中，并在水的存在下不断膨胀。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.016 秒)
