Invention Grant
- Patent Title: Ionic liquid shale inhibitor for drilling fluid and preparation method and application thereof
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Application No.: US17084262Application Date: 2020-10-29
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Publication No.: US11192964B2Publication Date: 2021-12-07
- Inventor: Lili Yang , Guancheng Jiang , Xiao Yang , Tengda Wang , Yawei Shi
- Applicant: China University of Petroleum (Beijing)
- Applicant Address: CN Beijing
- Assignee: China University of Petroleum (Beijing)
- Current Assignee: China University of Petroleum (Beijing)
- Current Assignee Address: CN Beijing
- Agency: Calfee Halter & Griswold LLP
- Priority: CN201911039770.6 20191029
- Main IPC: C09K8/035
- IPC: C09K8/035 ; C08F26/06
Abstract:
A preparation method of an ionic liquid shale inhibitor for drilling fluid comprises the following step: subjecting the imidazole-based ionic liquid to a polymerization reaction in water environment under an inert atmosphere, and the produced polymer is used as an ionic liquid shale inhibitor for drilling fluid. The ionic liquid shale inhibitor for drilling fluid has the advantages of desirable inhibition effect, good compatibility, strong high-temperature resistance, simple preparation method and low cost.
Public/Granted literature
- US20210122851A1 IONIC LIQUID SHALE INHIBITOR FOR DRILLING FLUID AND PREPARATION METHOD AND APPLICATION THEREOF Public/Granted day:2021-04-29
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