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Patent Searching and Data


Title:
DIVERTING AGENT AND METHOD FOR BLOCKING FRACTURES IN WELL USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/002471
Kind Code:
A1
Abstract:
The present invention provides a diverting agent that demonstrates plug dissolubility due to biodegradability and can therefore be quickly eliminated after a prescribed amount of time has passed but that also has excellent ability to occlude fissures in a well. This diverting agent is 10–70 mass% particles that have a particle diameter of at least 1,700 μm, 20–80 mass% particles that have a particle diameter of at least 500 μm but less than 1,700 μm, and 5–40 mass% particles that have a particle diameter of less than 250 μm. At least 10 mass% of the diverting agent is a biodegradable resin.

Inventors:
FURO CHIZUKO (JP)
KANAMORI YUYA (JP)
HIRANO YASUHIRO (JP)
Application Number:
JP2020/026300
Publication Date:
January 07, 2021
Filing Date:
July 03, 2020
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C09K8/508; C09K8/68; E21B43/26
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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