Invention Grant
- Patent Title: Degradation agent for viscous fluid and method for producing said degradation agent
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Application No.: US17252519Application Date: 2019-08-01
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Publication No.: US11306242B2Publication Date: 2022-04-19
- Inventor: Norifumi Tashiro , Katsuyuki Murai
- Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2018-152244 20180813
- International Application: PCT/JP2019/030112 WO 20190801
- International Announcement: WO2020/036068 WO 20200220
- Main IPC: C09K8/70
- IPC: C09K8/70 ; C01G49/14
Abstract:
A degradation agent for viscous fluids to be used in hydraulic fracturing methods is provided according to one aspect of the present invention, the degradation agent comprising a persulfate and an iron salt serving as an activator for the persulfate, wherein the persulfate and the iron salt have been coated and the ratio of the coating-film thickness (Y) in the iron salt to the coating-film thickness (X) in the persulfate, Y/X, is in the range of 0.35 to 1.0. The degradation agent for viscous fluids has properties suitable for use in hydraulic fracturing methods.
Public/Granted literature
- US20210261856A1 DEGRADATION AGENT FOR VISCOUS FLUID AND METHOD FOR PRODUCING SAID DEGRADATION AGENT Public/Granted day:2021-08-26
Information query
