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公开(公告)号：US20070029085A1
公开(公告)日：2007-02-08
申请号：US11460843
申请日：2006-07-28
摘要： Compositions and methods are given to prevent, alleviate and remedy water blocks and gas blocks (condensate block or condensate banking). Wettability modifiers are contacted with the formation to change the surfaces from water wet or oil wet to intermediate wet or gas wet. Preferred wettability modifiers include partially or completely fluorinated surfactants or polymers, for example fluorosilanes such as perfluorosilanes, urethane oligomers containing perfluoro alkyl moieties, fluoroacrylates, and fluoroalkyl containing terpolymers or their mixtures. Other examples include surfactants, for example viscoelastic surfactants such as cationic surfactants such as quaternary amines, and zwitterionic surfactants, such as betaines, optionally mixed with co-surfactants.
摘要翻译： 给出了组合和方法，以防止，减轻和补救水块和瓦斯块（冷凝物块或冷凝物）。 润湿性调节剂与地层接触，以将表面从湿润的或油的湿润变为中间的湿气或湿气。 优选的润湿性改性剂包括部分或完全氟化的表面活性剂或聚合物，例如氟硅烷如全氟硅烷，含全氟烷基部分的氨基甲酸酯低聚物，氟代丙烯酸酯和含氟烷基的三元共聚物或其混合物。 其它实例包括表面活性剂，例如粘弹性表面活性剂，例如阳离子表面活性剂如季胺，和两性离子表面活性剂，如甜菜碱，任选与辅助表面活性剂混合。
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公开(公告)号：US20080035344A1
公开(公告)日：2008-02-14
申请号：US11462862
申请日：2006-08-07
申请人： Nadir Odeh , Mathew Samuel , Philippe Enkababian , Keng Seng Chan
发明人： Nadir Odeh , Mathew Samuel , Philippe Enkababian , Keng Seng Chan
IPC分类号： E21B33/138 , C09K8/44
CPC分类号： C09K8/44 , C04B26/02 , C04B26/06 , C04B22/124 , C04B24/126 , C04B40/0658
摘要： A delayed gelling system useful in conformance control in the production of petroleum from subterranean formations is disclosed. The gelling system comprises an acidic aqueous solution of acid-soluble or cationic polyacrylamide, an at least partially neutralized acid aluminum salt, an activator comprising a hydroxyl donor, and an optional gel modifier. The gelling system may be pumped into formations with excessive water production and thermally activated in the formation at downhole conditions to form a co-gel of polyacrylamide interspersed in an inorganic gel network to reduce water production.
摘要翻译： 公开了一种用于从地层生产石油的一致性控制中的延迟胶凝体系。 胶凝体系包括酸溶性或阳离子聚丙烯酰胺的水溶液，至少部分中和的酸铝盐，包含羟基供体的活化剂和任选的凝胶改性剂。 胶凝系统可以被泵送到具有过度产水并且在井下条件下在地层中热活化的地层中，以形成分散在无机凝胶网络中的聚丙烯酰胺的共凝胶以减少水的产生。
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公开(公告)号：US07458424B2
公开(公告)日：2008-12-02
申请号：US11740346
申请日：2007-04-26
IPC分类号： E21B33/13
CPC分类号： C09K8/5045 , C09K8/506 , C09K8/516
摘要： A delayed gelling system useful in conformance control in the production of petroleum from subterranean formations, especially low permeability formations, is disclosed. The gelling system comprises a basic silica sol, an activator comprising a hydroxyl donor, and an optional syneresis inhibitor. In the disclosed method of using the gelling system, the gelling system may be pumped into formations with excessive water and/or gas production and thermally activated in the formation at downhole conditions to form a hard gel to reduce water and/or gas production.
摘要翻译： 公开了一种用于从地下地层，特别是低渗透性地层生产石油的一致性控制中的延迟胶凝体系。 胶凝体系包括碱性硅溶胶，包含羟基供体的活化剂和任选的脱水收缩抑制剂。 在所公开的使用胶凝体系的方法中，胶凝体系可以被泵送到具有过多的水和/或气体产生的结构中并且在井下条件下在地层中热激活以形成硬凝胶以减少水和/或气体的产生。
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公开(公告)号：US20130310285A1
公开(公告)日：2013-11-21
申请号：US13475122
申请日：2012-05-18
IPC分类号： C09K8/72
CPC分类号： C09K8/74 , C09K2208/30
摘要： A treatment fluid made of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor. A method of combining a mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor, in a fluid mixture. A method of contacting a low-temperature formation with a fluid mixture of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor.
摘要翻译： 由无机酸，粘弹性表面活性剂，氟化物源和螯合剂中的至少一种以及任选的腐蚀抑制剂制成的处理流体。 将无机酸，粘弹性表面活性剂，氟化物源和螯合剂中的至少一种以及任选的腐蚀抑制剂组合在流体混合物中的方法。 使低温地层与无机酸，粘弹性表面活性剂，氟化物源和螯合剂中的至少一种以及任选的腐蚀抑制剂的流体混合物接触的方法。
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公开(公告)号：US20080035343A1
公开(公告)日：2008-02-14
申请号：US11740346
申请日：2007-04-26
IPC分类号： E21B33/13
CPC分类号： C09K8/5045 , C09K8/506 , C09K8/516
摘要： A delayed gelling system useful in conformance control in the production of petroleum from subterranean formations, especially low permeability formations, is disclosed. The gelling system comprises a basic silica sol, an activator comprising a hydroxyl donor, and an optional syneresis inhibitor. In the disclosed method of using the gelling system, the gelling system may be pumped into formations with excessive water and/or gas production and thermally activated in the formation at downhole conditions to form a hard gel to reduce water and/or gas production.
摘要翻译： 公开了一种用于从地下地层，特别是低渗透性地层生产石油的一致性控制中的延迟胶凝体系。 胶凝体系包括碱性硅溶胶，包含羟基供体的活化剂和任选的脱水收缩抑制剂。 在所公开的使用胶凝体系的方法中，胶凝体系可以被泵送到具有过多的水和/或气体产生的结构中并且在井下条件下在地层中热激活以形成硬凝胶以减少水和/或气体的产生。
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