Title:
METHOD FOR MEASURING OIL-WATER DISTRIBUTION USING DNP-MRI
Document Type and Number:
WIPO Patent Application WO/2020/224419
Kind Code:
A1
Abstract:
Provided is a method for measuring oil-water distribution using DNP-MRI. The method is: 1, adding free radicals for DNP to enhance water phase or oil phase NMR signals into the sample to be measured containing oil and water; 2, performing MRI experiment on the sample to be measured, and collecting an MRI image without DNP enhancement of the sample to be measured; 3, applying microwave excitation under the same MRI experiment condition as the step 2, and carrying out DNP-MRI testing, collecting an MRI image of the sample to be measured after DNP enhancement; 4, comparing the MRI image after DNP enhancement with the MRI image without DNP enhancement, in the MRI image after DNP enhancement, the area with enhanced MRI signal intensity is a selective enhanced fluid phase distribution area, the area with unobviously changed MRI signal intensity is a non-selective enhanced fluid phase distribution area. The method is simple, convenient to operate, short in measurement time and high in measurement efficiency.
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Inventors:
CHEN LI (CN)
CHEN JUNFEI (CN)
LIU CHAOYANG (CN)
ZHANG ZHEN (CN)
FENG TAO (CN)
FENG JIWEN (CN)
CHEN FANG (CN)
CHEN JUNFEI (CN)
LIU CHAOYANG (CN)
ZHANG ZHEN (CN)
FENG TAO (CN)
FENG JIWEN (CN)
CHEN FANG (CN)
Application Number:
PCT/CN2020/085475
Publication Date:
November 12, 2020
Filing Date:
April 18, 2020
Export Citation:
Assignee:
INNOVATION ACADEMY FOR PRECISION MEASUREMENT SCIENCE AND TECH CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
G01N24/08
Domestic Patent References:
| WO2014023659A1 | 2014-02-13 |
Foreign References:
| CN110082381A | 2019-08-02 | |||
| US20170254920A1 | 2017-09-07 | |||
| CN107907911A | 2018-04-13 | |||
| CN109477872A | 2019-03-15 |
Attorney, Agent or Firm:
WUHAN YUCHEN PATENT AGENCY (CN)
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