Title:
EVALUATION METHOD FOR BIOLOGICAL COMPOSITE OIL DISPLACEMENT SYSTEM AND CONSTRUCTION METHOD FOR BIOLOGICAL COMPOSITE OIL DISPLACEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/001705
Kind Code:
A1
Abstract:
The present invention relates to an evaluation method for a biological composite oil displacement system and a construction method for a biological composite oil displacement system. The evaluation method comprises: first preparing a mixed solution from a synthetic surfactant and a lipopeptide surfactant; then carrying out electrospray ionization mass spectrometry analysis; calculating a mass-to-charge ratio relative intensity ratio R(+) of the synthetic surfactant to the lipopeptide surfactant in a positive ionization mode, and a mass-to-charge ratio relative intensity ratio R(-) of the synthetic surfactant to the lipopeptide surfactant in a negative ionization mode; and finally, according to equation (3) that is R(-/+)=R(-)/R(+), calculating a positive and negative ion intensity ratio R(-/+), which represents the oil displacement effect of a biological composite oil displacement system. Compared with the prior art, the present invention is simple and rapid, and without the need of a large number of experiments, can judge whether two surfactants can be electrically complementary, and on this basis, rapidly screen out an effective combination of a surfactant and a lipopeptide, so as to construct a biological composite oil displacement system.
Inventors:
MU BOZHONG (CN)
YANG SHIZHONG (CN)
LIU JINFENG (CN)
GANG HONGZE (CN)
ZHOU LEI (CN)
YANG SHIZHONG (CN)
LIU JINFENG (CN)
GANG HONGZE (CN)
ZHOU LEI (CN)
Application Number:
PCT/CN2023/098747
Publication Date:
January 04, 2024
Filing Date:
June 07, 2023
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
G01N27/62; E21B43/22
Foreign References:
| CN115236167A | 2022-10-25 | |||
| CN102492409A | 2012-06-13 | |||
| CN105403557A | 2016-03-16 | |||
| CN104263341A | 2015-01-07 | |||
| CN102153998A | 2011-08-17 | |||
| JP2000055898A | 2000-02-25 | |||
| KR102248106B1 | 2021-05-04 |
Attorney, Agent or Firm:
SHANGHAI KESHENG INTELLECTUAL PROPERTY AGENCY LTD. et al. (CN)
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