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1.发明授权Methods of fracturing a subterranean formation using a pH dependent foamed fracturing fluid 失效使用pH依赖性泡沫压裂液压裂地层的方法公开(公告)号：US06966379B2
公开(公告)日：2005-11-22
申请号：US10683644
申请日：2003-10-10
CPC分类号： C09K8/703 , Y10S507/922
摘要： Methods of fracturing a subterranean formation include providing a fracturing fluid having a first pH. The fracturing fluid may be made by combining a gelling agent, a surfactant, and a proppant. The surfactant is capable of facilitating foaming of the fracturing fluid at the first pH and defoaming of the fracturing fluid when its pH is changed to a second pH. The methods of fracturing the subterranean formation further include foaming the fracturing fluid having the first pH and subsequently pumping it to the subterranean formation to fracture the formation. The pH of the fracturing fluid changes to a second pH, for example via in situ contact with an acidic material, causing the level of foam in the fracturing fluid to be reduced. As a result of the reduction of the foam, the fracturing fluid deposits the proppant into the fractures formed in the subterranean formation.
摘要翻译： 压裂地层的方法包括提供具有第一pH的压裂液。 压裂液可以通过组合胶凝剂，表面活性剂和支撑剂来制备。 表面活性剂能够促使压裂流体在第一pH下发泡，并且当其pH变为第二pH时能够使压裂液脱泡。 压裂地层的方法还包括使具有第一pH的压裂液发泡，随后将其泵送到地层以破裂地层。 压裂液的pH值变化到第二个pH值，例如通过与酸性材料的原位接触，导致压裂液中泡沫的水平降低。 作为泡沫减少的结果，压裂液将支撑剂沉积到地层中形成的裂缝中。
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公开(公告)号：US07407916B2
公开(公告)日：2008-08-05
申请号：US11354418
申请日：2006-02-15
CPC分类号： C09K8/703
摘要： Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate, an alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and combinations thereof, and an alkyl amidopropyl dimethylamine oxide. Methods comprising providing the foamed treatment fluid and introducing the foamed treatment fluid into a subterranean formation.
摘要翻译： 包含水，气体和发泡泡沫稳定表面活性剂混合物的发泡处理流体包含烷基醚硫酸盐的碱金属盐，其中烷基醚硫酸盐的碱金属盐包含C 6〜 烷基醚硫酸盐和C 4-14烷基醚硫酸盐的碱金属盐，烷基酰氨基丙基两性表面活性剂，其选自烷基酰氨基丙基羟基磺基甜菜碱，烷基酰氨基丙基甜菜碱及其组合 ，和烷基酰氨基丙基二甲基胺氧化物。 方法包括提供发泡处理流体并将泡沫处理流体引入地层中。
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公开(公告)号：US07579302B2
公开(公告)日：2009-08-25
申请号：US11879423
申请日：2007-07-17
申请人： David E. McMechan , Rob E. Hanes, Jr. , Ian D. Robb , Thomas D. Welton , Karen L. King , Bobby J. King , Jiten Chatterji
发明人： David E. McMechan , Rob E. Hanes, Jr. , Ian D. Robb , Thomas D. Welton , Karen L. King , Bobby J. King , Jiten Chatterji
CPC分类号： C09K8/12 , C09K8/68 , C09K8/74 , C09K8/882 , C09K2208/28
摘要： Embodiments relate to improving the performance of anionic friction reducing polymers in water containing multivalent ions. Exemplary embodiments relate to methods of improving the performance of anionic friction reducing polymers in a subterranean treatment, wherein the method comprises adding a complexing agent to water comprising multivalent ions. The method comprises adding the anionic friction reducing polymer to the water comprising the multivalent ions, wherein the anionic friction reducing polymer is added in an amount less than or equal to about 0.15% by weight of the water. The method comprises introducing the water comprising the multivalent ions, the complexing agent and the anionic friction reducing polymer into at least a portion of the subterranean formation such that the friction reducing polymer reduces energy loss due to turbulence in the water. The complexing agent complexes with at least a portion of the multivalent ions in the water such that the reduction of energy loss by the friction reducing polymer is improved.
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公开(公告)号：US07205263B2
公开(公告)日：2007-04-17
申请号：US10956928
申请日：2004-10-01
申请人： Jiten Chatterji , Bobby J. King , Karen L. King
发明人： Jiten Chatterji , Bobby J. King , Karen L. King
CPC分类号： C09K8/703 , Y10S507/922
摘要： Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The foamed fracturing fluid is subsequently pumped to the subterranean formation to fracture it. The pH of the fracturing fluid is then changed to a second pH at which the surfactant facilitates reduction of the foam. The fracturing fluid releases proppant contained in the fluid to the subterranean formation. The fracturing fluid is then allowed to flow back to the surface. It can be recycled by changing the pH of the fracturing fluid back to the first pH and adding a gas to the fluid, causing it to foam again.
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公开(公告)号：US07134497B1
公开(公告)日：2006-11-14
申请号：US11355059
申请日：2006-02-15
IPC分类号： E21B43/26
CPC分类号： C09K8/703 , C09K8/38 , C09K8/685 , C09K2208/26
摘要： Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C6-10 alkyl ether sulfate, and an alkali salt of a C4 alkyl ether sulfate, an alkyl amidopropyl amphoteric surfactant selected from the group consisting of an alkyl amidopropyl hydroxysultaine, an alkyl amidopropyl betaine, and combinations thereof, and an alkyl amidopropyl dimethylamine oxide. Methods comprising providing the foamed treatment fluid and introducing the foamed treatment fluid into a subterranean formation.
摘要翻译： 包含水，气体和发泡泡沫稳定表面活性剂混合物的发泡处理流体包含烷基醚硫酸盐的碱金属盐，其中烷基醚硫酸盐的碱金属盐包含C 6〜 烷基醚硫酸盐和C 4-14烷基醚硫酸盐的碱金属盐，烷基酰氨基丙基两性表面活性剂，其选自烷基酰氨基丙基羟基磺基甜菜碱，烷基酰氨基丙基甜菜碱及其组合 ，和烷基酰氨基丙基二甲基胺氧化物。 方法包括提供发泡处理流体并将泡沫处理流体引入地层中。
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6.发明申请公开(公告)号：US20090023617A1
公开(公告)日：2009-01-22
申请号：US11879423
申请日：2007-07-17
申请人： David E. McMechan , Rob E. Hanes, JR. , Ian D. Robb , Thomas D. Welton , Karen L. King , Bobby J. King , Jiten Chatterji
发明人： David E. McMechan , Rob E. Hanes, JR. , Ian D. Robb , Thomas D. Welton , Karen L. King , Bobby J. King , Jiten Chatterji
IPC分类号： C09K8/60
CPC分类号： C09K8/12 , C09K8/68 , C09K8/74 , C09K8/882 , C09K2208/28
摘要： Embodiments relate to improving the performance of anionic friction reducing polymers in water containing multivalent ions. Exemplary embodiments relate to methods of improving the performance of anionic friction reducing polymers in a subterranean treatment, wherein the method comprises adding a complexing agent to water comprising multivalent ions. The method comprises adding the anionic friction reducing polymer to the water comprising the multivalent ions, wherein the anionic friction reducing polymer is added in an amount less than or equal to about 0.15% by weight of the water. The method comprises introducing the water comprising the multivalent ions, the complexing agent and the anionic friction reducing polymer into at least a portion of the subterranean formation such that the friction reducing polymer reduces energy loss due to turbulence in the water. The complexing agent complexes with at least a portion of the multivalent ions in the water such that the reduction of energy loss by the friction reducing polymer is improved.
摘要翻译： 实施方案涉及改善含多价离子的水中阴离子减摩聚合物的性能。 示例性实施方案涉及改进地下处理中阴离子减摩聚合物的性能的方法，其中所述方法包括向包含多价离子的水中加入络合剂。 该方法包括将阴离子摩擦降低聚合物加入到包含多价离子的水中，其中以少于或等于约0.15重量％的量加入阴离子摩擦降低聚合物。 该方法包括将包含多价离子的水，络合剂和阴离子摩擦降低聚合物引入地层的至少一部分中，使得摩擦降低聚合物降低由于水中湍流引起的能量损失。 络合剂与水中的多价离子的至少一部分复合，从而提高了降低摩擦降低聚合物的能量损失。
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公开(公告)号：US20070187105A1
公开(公告)日：2007-08-16
申请号：US11454236
申请日：2006-06-16
IPC分类号： E21B43/26
CPC分类号： C09K8/38 , C09K8/685 , C09K8/703 , C09K2208/26
摘要： Methods of treating subterranean formations using foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising a plurality of alkali salts of alkyl ether sulfates wherein the alkyl group in each of the alkyl ether sulfates has in the range of from 4 carbon atoms to 10 carbon atoms, an alkyl amidopropyl hydroxysultaine or an alkyl amidopropyl betaine, and an alkyl amidopropyl dimethylamine oxide.
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公开(公告)号：US07287594B1
公开(公告)日：2007-10-30
申请号：US11454236
申请日：2006-06-16
IPC分类号： E21B43/26
CPC分类号： C09K8/38 , C09K8/685 , C09K8/703 , C09K2208/26
摘要： Methods of treating subterranean formations using foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising a plurality of alkali salts of alkyl ether sulfates wherein the alkyl group in each of the alkyl ether sulfates has in the range of from 4 carbon atoms to 10 carbon atoms, an alkyl amidopropyl hydroxysultaine or an alkyl amidopropyl betaine, and an alkyl amidopropyl dimethylamine oxide.
摘要翻译： 使用泡沫处理流体处理地下地层的方法，所述发泡处理流体包括水，气体和包含多个烷基醚硫酸盐的碱金属盐的发泡泡沫稳定表面活性剂混合物，其中每个烷基醚硫酸盐中的烷基具有在 4个碳原子至10个碳原子，烷基酰氨基丙基羟基磺基甜菜碱或烷基酰氨基丙基甜菜碱和烷基酰氨基丙基二甲基胺氧化物。
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公开(公告)号：US06986392B2
公开(公告)日：2006-01-17
申请号：US10396606
申请日：2003-03-25
申请人： Jiten Chatterji , Bobby J. King , Karen L. King
发明人： Jiten Chatterji , Bobby J. King , Karen L. King
IPC分类号： E21B43/26
CPC分类号： C09K8/703 , Y10S507/922
摘要： Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The foamed fracturing fluid is subsequently pumped to the subterranean formation to fracture it. The pH of the fracturing fluid is then changed to a second pH at which the surfactant facilitates reduction of the foam. The fracturing fluid releases proppant contained in the fluid to the subterranean formation. The fracturing fluid is then allowed to flow back to the surface. It can be recycled by changing the pH of the fracturing fluid back to the first pH and adding a gas to the fluid, causing it to foam again.
摘要翻译： 提供了压裂液和使用这种流体压裂地层的方法。 具有第一pH的压裂液通过向流体引入气体而发泡。 压裂流体包括有助于在第一pH下形成泡沫的表面活性剂。 随后将发泡压裂液泵送到地层以将其破裂。 然后将压裂液的pH变为第二pH，在该第二pH下，表面活性剂促进泡沫的还原。 压裂液将包含在流体中的支撑剂释放到地层中。 然后允许压裂液流回到表面。 通过将压裂液的pH值改变回第一个pH值并向流体中加入一种气体，使其再次发泡，可以循环使用。
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公开(公告)号：US08030253B2
公开(公告)日：2011-10-04
申请号：US12544915
申请日：2009-08-20
CPC分类号： C09K8/473 , C04B38/10 , C09K8/487 , Y02W30/92 , Y02W30/94 , C04B14/047 , C04B14/106 , C04B14/108 , C04B18/08 , C04B18/141 , C04B24/163 , C04B24/2611 , C04B24/2623 , C04B24/2641 , C04B24/2676 , C04B28/02 , C04B2103/40
摘要： Of the many compositions provided herein, an embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising at least one swellable elastomer selected from the group consisting of acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, choloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene block copolymer, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene vinyl acetate copolymer, fluorosilicone rubber, silicone rubber, and combinations thereof, a foaming and stabilizing surfactant, gas, and water. Another embodiment includes a foamed cement composition comprising a cementitious component, an oil-swellable particle comprising a block copolymer of styrene butadiene rubber, a foaming and stabilizing surfactant, and gas.
摘要翻译： 在本文提供的许多组合物中，一个实施方案包括泡沫水泥组合物，其包含水泥组分，油溶胀性颗粒，其包含至少一种可溶胀弹性体，所述可溶胀弹性体选自丙烯酸酯丁二烯橡胶，聚丙烯酸酯橡胶，异戊二烯橡胶，氯丁橡胶，丁基橡胶 橡胶，溴化丁基橡胶，氯化丁基橡胶，氯化聚乙烯，氯丁橡胶，苯乙烯丁二烯嵌段共聚物，磺化聚乙烯，乙烯丙烯酸酯橡胶，表氯醇环氧乙烷共聚物，乙丙橡胶，乙烯乙酸乙烯酯共聚物，氟硅橡胶，硅橡胶和 发泡和稳定表面活性剂，气体和水。 另一个实施方案包括泡沫水泥组合物，其包含水泥组分，包含苯乙烯丁二烯橡胶的嵌段共聚物，发泡和稳定表面活性剂以及气体的油溶胀性颗粒。
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