Diverting agent and method of filling fracture in well using same

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United States of America Patent

PATENT NO 12054667
APP PUB NO 20210309911A1
SERIAL NO

17354385

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Abstract

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A diverting agent is provided that exhibits sufficient filling properties against a fracture in a well because of swelling without complete dissolution for a certain period of time (about 30 minutes to 5 hours), and that quickly dissolves and can be removed even at a low temperature of 40° C. to 60° C. after a certain period of time has passed. Also provided is a diverting agent that contains a modified polyvinyl alcohol-based resin.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI CHEMICAL CORPORATION1-1 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008251 ?1008251

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furo, Chizuko Tokyo, JP 18 34
Hirano, Yasuhiro Tokyo, JP 57 478
Saka, Takahiro Tokyo, JP 10 23
Taniguchi, Ryosuke Tokyo, JP 44 419

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