The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2024
Filed:
Apr. 20, 2023
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Shusaku Mandai, Tokyo, JP;
Yasuhiro Hirano, Tokyo, JP;
Yuya Kanamori, Tokyo, JP;
Kenji Furui, Tokyo, JP;
Keito Ikebata, Tokyo, JP;
Tomoki Onishi, Tokyo, JP;
Assignee:
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01); C09K 8/62 (2006.01);
U.S. Cl.
CPC ...
E21B 43/267 (2013.01);
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.