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公开(公告)号：US11879096B2
公开(公告)日：2024-01-23
申请号：US17250257
申请日：2019-06-17
发明人： Cornelis Elizabeth Johannus Van Lare , Maria Antonieta Leon Matheus , Jannes Schutte , Cornelis Kooijman
CPC分类号： C09K8/74 , C09K8/76 , C09K2208/10 , C09K2208/32
摘要： The disclosure is directed to a process for treating a subterranean earth formation by introducing a monovalent salt of monochloroacetic acid into said subterranean earth formation in the presence of a chelating agent which comprises at least one carboxylate group having a monovalent counterion and furthermore comprises a carbon chain carrying at least five hydroxyl groups. Preferably the cation of the monovalent salt of monochloroacetic acid is sodium.
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公开(公告)号：US11912937B2
公开(公告)日：2024-02-27
申请号：US17999238
申请日：2021-05-19
发明人： Willem Koelewijn , Maria Antonieta Leon Matheus , Cornelis Kooijman , Cornelis Elizabeth Johannus Van Lare
摘要： A process for treating a subterranean earth formation includes the step of introducing an acidizing treatment fluid comprising a monovalent salt of monochloroacetic acid into the subterranean earth formation in the presence of at least one bromide or iodide salt or salt precursor, wherein the at least one bromide or iodide salt or salt precursor is introduced into the subterranean earth formation in an amount of from about 0.3 to about 10 wt %, based on the total weight of the acidizing treatment fluid. The acidizing treatment fluid itself includes the monovalent salt of monochloroacetic acid, the at least one bromide or iodide salt or salt precursor, and optionally an element to suppress precipitation of calcium glycolate and/or at least one acid.
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3.发明授权公开(公告)号：US11891570B2
公开(公告)日：2024-02-06
申请号：US17999239
申请日：2021-05-14
发明人： Albert Bokkers , Cornelis Elizabeth Johannus Van Lare , Cornelis Kooijman , Maria Antonieta Leon Matheus
摘要： A process for treating a subterranean earth formation by includes the step of introducing a buffered acidizing treatment fluid comprising a monovalent salt of monochloroacetic acid and at least one acid into the subterranean earth formation, wherein the pH of the buffered acidizing treatment fluid is from about 1.2 to about 5. The buffered acidizing treatment fluid itself includes the monovalent salt of monochloroacetic acid, the at least one acid and optionally an element to suppress salt precipitation.
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