METHOD FOR SEPARATING OIL-WATER TWO-PHASE NMR SIGNALS BY USING DYNAMIC NUCLEAR POLARIZATION - INNOVATION ACADEMY FOR PRECISION MEASUREMENT SCIENCE AND TECH CHINESE ACADEMY OF SCIENCES

Title:

METHOD FOR SEPARATING OIL-WATER TWO-PHASE NMR SIGNALS BY USING DYNAMIC NUCLEAR POLARIZATION

Document Type and Number:

WIPO Patent Application WO/2020/224420

Kind Code:

A1

Abstract:

The present invention discloses a method for separating oil-water two-phase NMR signals by using dynamic nuclear polarization, specifically comprising: adding free radicals into an oil and water-containing sample to be tested to enhance the water phase or oil phase NMR signals, then performing nuclear magnetic resonance analysis detection of enhanced dynamic nuclear polarization, to obtain the water phase or oil phase NMR signals. The method is simple and easy to operate, has a short test time, and can efficiently separate the oil-water two-phase NMR signals.

More Like This:

WO/2017/002761	NUCLEAR SPIN POLARIZATION ENHANCING METHOD THROUGH DYNAMIC NUCLEAR POLARIZATION BY USING SOLUBLE PENTACENE
JPS63175754	METHOD FOR MEASURING MULTIPLE QUANTUM DECOMPOSITION THREE-DIMENSIONAL NUCLEAR MAGNETIC RESONANCE
JP7297349	Analysis system and method for producing analysis images

Inventors:

LIU CHAOYANG (CN)
CHEN JUNFEI (CN)
CHEN LI (CN)
FENG JIWEN (CN)
ZHANG ZHEN (CN)
ZHANG ZHEKAI (CN)
CHEN FANG (CN)

Application Number:

PCT/CN2020/085478

Publication Date:

November 12, 2020

Filing Date:

April 18, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

INNOVATION ACADEMY FOR PRECISION MEASUREMENT SCIENCE AND TECH CHINESE ACADEMY OF SCIENCES (CN)

International Classes:

G01N24/12

Foreign References:

CN110082382A	2019-08-02
CN110082381A	2019-08-02
CN106324008A	2017-01-11
CN101915716A	2010-12-15
CN1763563A	2006-04-26
US20160047762A1	2016-02-18
US20180340997A1	2018-11-29
CN108918573A	2018-11-30

Other References:

JUNFEI CHEN, JIWEN FENG, FANG CHEN, ZHEN ZHANG, LI CHEN, ZHEKAI ZHANG, RUGANG LIAO, MAILI LIU, CHAOYANG LIU: "Characterizing oils in oil-water mixtures inside porous media by Overhauser dynamic nuclear polarization", FUEL, vol. 257, 1 December 2019 (2019-12-01), pages 1 - 23, XP085817910, ISSN: 0016-2361, DOI: 10.1016/j.fuel.2019.116107
FRANCK JOHN M; KAUSIK RAVINATH; HAN SONGI: "Overhauser dynamic nuclear polarization-enhanced NMR relaxometry", MICROPOROUS AND MESOPOROUS MATERIALS, vol. 178, 30 April 2013 (2013-04-30), pages 113 - 118, XP028595158, ISSN: 1387-1811, DOI: 10.1016/j.micromeso.2013.04.019
JIANWEI ZHOU: "Dynamic Nuclear Polarization – NMR Spectroscopy", WULI, vol. 25, no. 3, 31 December 1996 (1996-12-31), pages 160 - 166, XP009524121, ISSN: 0379-4148

Attorney, Agent or Firm:

WUHAN YUCHEN PATENT AGENCY (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: METHOD FOR MEASURING OIL-WATER DISTRIBUTION USING DNP-MRI

Next Patent: UPGRADE METHOD, APPARATUS AND SYSTEM, AND STORAGE MEDIUM