Title:
RESIN COMPOSITION, DOWNHOLE TOOL OR MEMBER THEREOF, PLUG, AND WELL TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/053955
Kind Code:
A1
Abstract:
Provided is a technique with which it is possible to suppress any decrease in the thickness of a downhole tool or a member thereof in a high-temperature well. As one means of solving the aforementioned problem, the present invention provides a resin composition that contains 50-97 parts by mass of polyglycolic acid, 3-50 parts by mass of polybutylene terephthalate, and 2-15 parts by mass of a cyclic carbodiimide compound per 100 total parts by mass of the polyglycolic acid and the polybutylene terephthalate.
Inventors:
KOBAYASHI TAKUMA (JP)
SUGA TAKAHIRO (JP)
SUGA TAKAHIRO (JP)
Application Number:
PCT/JP2022/034307
Publication Date:
April 06, 2023
Filing Date:
September 14, 2022
Export Citation:
Assignee:
KUREHA CORP (JP)
International Classes:
C08L67/04; C08K5/29; C08L67/02; E21B33/12; E21B43/00
Domestic Patent References:
| WO2013183363A1 | 2013-12-12 | |||
| WO2010071213A1 | 2010-06-24 |
Foreign References:
| CN111690391A | 2020-09-22 | |||
| JP2012001594A | 2012-01-05 | |||
| JP2015160872A | 2015-09-07 | |||
| JP2015172116A | 2015-10-01 | |||
| JP2012011776A | 2012-01-19 | |||
| JP2011143709A | 2011-07-28 | |||
| JP2015160872A | 2015-09-07 | |||
| JP2015172106A | 2015-10-01 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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