- 专利标题: Diverting agent, method for temporarily filling fracture in well using same, and method for further forming fracture
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申请号: US18137085申请日: 2023-04-20
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公开(公告)号: US11939855B2公开(公告)日: 2024-03-26
- 发明人: Shusaku Mandai , Yasuhiro Hirano , Yuya Kanamori , Kenji Furui , Keito Ikebata , Tomoki Onishi
- 申请人: Mitsubishi Chemical Corporation
- 申请人地址: JP Tokyo
- 专利权人: MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人: MITSUBISHI CHEMICAL CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: GREENBLUM & BERNSTEIN, P.L.C.
- 优先权: JP 20177767 2020.10.23
- 主分类号: E21B43/267
- IPC分类号: E21B43/267 ; C09K8/62
摘要:
A diverting agent and method for temporarily filling fractures. The diverting agent contains a powder-like polyvinyl alcohol-based resin (P1) and a pellet-like polyvinyl alcohol-based resin (P2), and has an adsorption coefficient kc of 0.01 or more and 1 or less.
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