Title:
METHOD FOR MEASURING GAS SATURATION OF GAS HYDRATE
Document Type and Number:
WIPO Patent Application WO/2021/212903
Kind Code:
A1
Abstract:
A method for measuring the gas saturation of a gas hydrate. The method comprises: taking a characteristic peak of a water molecule in a gas hydrate as a reference peak, calculating the ratio of a peak intensity integral of a characteristic peak of a gas molecule in the hydrate to a peak intensity integral of the characteristic peak of the water molecule in the hydrate, and obtaining a relative peak intensity integral of the characteristic peak of the gas molecule in the gas hydrate; by means of macroscopic measurement, quantitatively calculating the saturation of component gases in the hydrate; according to the saturation, which was measured many times, of the component gases in the hydrate, and the relative peak intensity integral of characteristic peaks, and by means of linear fitting, establishing a function of the saturation of different component gases to the relative peak intensity integral of the characteristic peaks; and measuring and calculating a relative peak intensity integral of a characteristic peak of a certain gas component in a hydrate sample, and using the function to calculate the gas saturation of the gas in the hydrate sample. By means of the method, the problem of the gas saturation of a gas hydrate being unable to be rapidly and accurately measured for a long time in the field of gas hydrate research is solved, and the method has important significance in the research on the aspects of rapid quantitative measurement of the gas saturation of a natural gas hydrate, the evaluation of gas reserves in a natural gas hydrate reservoir stratum, etc.
Inventors:
ZHOU XUEBING (CN)
LIANG DEQING (CN)
HE YONG (CN)
ZANG XIAOYA (CN)
LUO JINQIONG (CN)
LIANG DEQING (CN)
HE YONG (CN)
ZANG XIAOYA (CN)
LUO JINQIONG (CN)
Application Number:
PCT/CN2020/140523
Publication Date:
October 28, 2021
Filing Date:
December 29, 2020
Export Citation:
Assignee:
GUANGZHOU INST ENERGY CONVERSION CAS (CN)
International Classes:
G01N21/65; G01N30/02
Domestic Patent References:
| WO2020191347A1 | 2020-09-24 |
Foreign References:
| CN104634635A | 2015-05-20 | |||
| CN111638201A | 2020-09-08 | |||
| CN111289601A | 2020-06-16 |
Other References:
WANG FEIFEI: "Micro-experimental Study Onreplacement of CH4 Hydrate by Use of CO2", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, UNIVERSITY OF CHINESE ACADEMY OF SCIENCES, CN, 15 January 2016 (2016-01-15), CN , XP055860004, ISSN: 1674-022X
Attorney, Agent or Firm:
GUANGZHOU KEYUE I.P. LAW OFFICE (CN)
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