Invention Grant
- Patent Title: Diverting agent, method for temporarily filling fracture in well using same, and method for further forming fracture
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Application No.: US18137085Application Date: 2023-04-20
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Publication No.: US11939855B2Publication Date: 2024-03-26
- Inventor: Shusaku Mandai , Yasuhiro Hirano , Yuya Kanamori , Kenji Furui , Keito Ikebata , Tomoki Onishi
- Applicant: Mitsubishi Chemical Corporation
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI CHEMICAL CORPORATION
- Current Assignee: MITSUBISHI CHEMICAL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: GREENBLUM & BERNSTEIN, P.L.C.
- Priority: JP 20177767 2020.10.23
- Main IPC: E21B43/267
- IPC: E21B43/267 ; C09K8/62
Abstract:
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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