- 专利标题： ACID PRECURSOR TREATMENT FLUID GENERATING AND/OR RELEASING ACID FOR USE DOWNHOLE IN A SUBTERRANEAN FORMATION
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申请号： US17522122申请日： 2021-11-09
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公开(公告)号： US20230142443A1公开(公告)日： 2023-05-11
- 发明人: Hui ZHOU , William Cecil PEARL, JR. , William Walter SHUMWAY
- 申请人： Halliburton Energy Services, Inc.
- 申请人地址： US TX Houston
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US TX Houston
- 主分类号： C09K8/72
- IPC分类号： C09K8/72 ; C09K8/528
摘要：
A method includes providing a treatment fluid including a strong acid precursor defined by the structure:
where X is independently selected from fluorine, chlorine, bromine, and iodine; where each of R1, R2, and R3 is independently selected from a hydrogen, X, and a C1 to C10 hydrocarbon chain; and where the electron withdrawing group (EWG) is independently selected from a carboxylic acid, carboxylate salt, or carboxylate ester, an orthoester, a sulfonic acid, sulfonate salt, or ester, a phosphonic acid, phosphonate salt, or phosphonate ester, a nitrate, or a cyanide; where Y is hydrogen, a cation, or a C1 to C10 hydrocarbon chain; and wherein each R′ is independently is independently selected from a hydrogen, X, and a C1 to C10 hydrocarbon chain. The method also includes introducing the treatment fluid into a wellbore penetrating a subterranean formation.
where X is independently selected from fluorine, chlorine, bromine, and iodine; where each of R1, R2, and R3 is independently selected from a hydrogen, X, and a C1 to C10 hydrocarbon chain; and where the electron withdrawing group (EWG) is independently selected from a carboxylic acid, carboxylate salt, or carboxylate ester, an orthoester, a sulfonic acid, sulfonate salt, or ester, a phosphonic acid, phosphonate salt, or phosphonate ester, a nitrate, or a cyanide; where Y is hydrogen, a cation, or a C1 to C10 hydrocarbon chain; and wherein each R′ is independently is independently selected from a hydrogen, X, and a C1 to C10 hydrocarbon chain. The method also includes introducing the treatment fluid into a wellbore penetrating a subterranean formation.
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