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1.发明申请PREPARATION METHOD, FORMULATION AND APPLICATION OF CHEMICALLY RETARDED MINERAL ACID FOR OILFIELD USE 审中-公开用于油田使用的化学阻燃矿物质的制备方法，配方及应用公开(公告)号：US20150344771A1
公开(公告)日：2015-12-03
申请号：US14824362
申请日：2015-08-12
Applicant: Schlumberger Technology Corporation
Inventor： Li JIANG , Mohan Kanaka Raju Panga , Christopher Scot Daeffler , Olga Vladimirovna Nevvonen , Merlyn Xavier Pulikkathara , Sergey Makarychev-Mikhailov , Jack Li , Yi Sun
Abstract: An aqueous composition comprising a mineral acid, a fixing agent and water present in an amount sufficient to dissolve the mineral acid and the fixing agent. The fixing agent comprises at least one of an amine and/or an amide containing compound having a dipole moment of at least 3 when in the aqueous composition.
Abstract translation: 一种水性组合物，其包含矿物酸，固定剂和以足以溶解无机酸和固定剂的量存在的水。 当在水性组合物中时，固定剂包含具有至少3的偶极矩的胺和/或酰胺化合物中的至少一种。
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公开(公告)号：US20160298024A1
公开(公告)日：2016-10-13
申请号：US15090747
申请日：2016-04-05
Applicant: Schlumberger Technology Corporation
Abstract: Methods include combining an amount of water and an acid retarding agent (RA), where the amount of water is present in an amount up to about 5 times the mass of the RA, inclusive, and wherein the RA includes at least one salt compound. An amount of acid is dissolved in the combined amount of water and RA to form a composition, where the amount of acid is a molar ratio of acid:RA of between 4.0 and 0.2, inclusive, and wherein the amount of acid is up to about 36% by weight of total weight of the composition. The composition is injected into a wellbore penetrating a subterranean formation at a pressure, which may be less than the fracture initiation pressure of the subterranean formation in some cases, while in other cases equal to or greater than the fracture initiation pressure.
Abstract translation: 方法包括组合一定量的水和酸缓释剂（RA），其中水的量以至多约RA的质量的5倍的量存在，其中RA包含至少一种盐化合物。 将一定量的酸溶解在水和RA的组合量中以形成组合物，其中酸的摩尔比为4.0至0.2的摩尔比，其中酸的量达到约 36重量％的组合物的总重量。 在某些情况下，将组合物注入渗透地下地层的井筒中，压力可能小于地层的断裂开始压力，而在其它情况下等于或大于断裂起始压力。
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公开(公告)号：US10378325B2
公开(公告)日：2019-08-13
申请号：US15090747
申请日：2016-04-05
Applicant: Schlumberger Technology Corporation
Abstract: Methods include combining an amount of water and an acid retarding agent (RA), where the amount of water is present in an amount up to about 5 times the mass of the RA, inclusive, and wherein the RA includes at least one salt compound. An amount of acid is dissolved in the combined amount of water and RA to form a composition, where the amount of acid is a molar ratio of acid:RA of between 4.0 and 0.2, inclusive, and wherein the amount of acid is up to about 36% by weight of total weight of the composition. The composition is injected into a wellbore penetrating a subterranean formation at a pressure, which may be less than the fracture initiation pressure of the subterranean formation in some cases, while in other cases equal to or greater than the fracture initiation pressure.
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4.发明授权公开(公告)号：US09920606B2
公开(公告)日：2018-03-20
申请号：US14824362
申请日：2015-08-12
Applicant: Schlumberger Technology Corporation
Inventor： Li Jiang , Mohan Kanaka Raju Panga , Christopher Scot Daeffler , Olga Vladimirovna Nevvonen , Merlyn Xavier Pulikkathara , Sergey Makarychev-Mikhailov , Jack Li , Annie Yi Sun
Abstract: An aqueous composition comprising a mineral acid, a fixing agent and water present in an amount sufficient to dissolve the mineral acid and the fixing agent. The fixing agent comprises at least one of an amine and/or an amide containing compound having a dipole moment of at least 3 when in the aqueous composition.
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