Title:
CHEMICAL LIQUID FOR RECOVERING CRUDE OIL
Document Type and Number:
WIPO Patent Application WO/2023/080168
Kind Code:
A1
Abstract:
[Problem] To provide a chemical liquid that is for recovering crude oil, that has excellent salt resistance at high temperature and/or high salt concentration, and that exhibits a high crude oil recovery rate. [Solution] This chemical liquid for recovering crude oil is characterized by containing: a cationic silane compound; an aqueous silica sol having an average particle size of 3-500 nm; and at least one cationic surfactant.
Inventors:
KASHIHARA MASAYA (JP)
OHORI TAKAHIRO (JP)
KITAGAWA HIROTAKE (JP)
MURAKAMI SATORU (JP)
OHORI TAKAHIRO (JP)
KITAGAWA HIROTAKE (JP)
MURAKAMI SATORU (JP)
Application Number:
PCT/JP2022/041039
Publication Date:
May 11, 2023
Filing Date:
November 02, 2022
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
C01B33/141; C07C211/63; C07C229/06; C07C305/06; C07F7/18; C09K8/58; E21B43/22
Domestic Patent References:
| WO2019054414A1 | 2019-03-21 |
Foreign References:
| CN102838981A | 2012-12-26 | |||
| CN101735787A | 2010-06-16 | |||
| JP2020519748A | 2020-07-02 | |||
| US20210009887A1 | 2021-01-14 |
Attorney, Agent or Firm:
HANABUSA PATENT & TRADEMARK OFFICE (JP)
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