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Title:
COMBUSTIBLE ICE FAST SUPERCOOLING NANO LIQUEFACTION AGENT AND METHOD FOR MINING COMBUSTIBLE ICE
Document Type and Number:
WIPO Patent Application WO/2021/026947
Kind Code:
A1
Abstract:
A combustible ice fast supercooling nano liquefaction agent and a method for mining the combustible ice. The combustible ice fast supercooling nano liquefaction agent comprises the following components by mass percentage: 0%-25% of an ammonium salt, 0%-25% of an acid , 10%-80% of a penetrant, 0%-25% of an amide, 5%-70% of an ester, 2%-40% of an ether, 0%-35% of an alcohol, 0%-25% of a ketone and 0%-35% of an aldehyde. According to rock mineral composition, a liquefaction agent having a freezing point at -200℃ to -10℃, a high flash point, a high rock dissolution rate, an increased permeability, a low injection pressure, a rapid drop in injection pressure, a long effective supercooling liquefaction distance and a large effective supercooling liquefaction volume for both single well and group wells, a fast supercooling liquefaction speed, and being safe and environmentally-friendly is selected, so as to achieve low-cost, large-scale, long-term production of methane gas from combustible ice.

Inventors:
FENG WENGUANG (CN)
FENG YAN (CN)
FENG ZHUO (CN)
FENG BO (CN)
Application Number:
PCT/CN2019/101549
Publication Date:
February 18, 2021
Filing Date:
August 20, 2019
Export Citation:
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Assignee:
CHENGDU ENERGY LIFE MATERIALS SCIENCE AND TECH DEVELOPMENT CO LTD ELM (CN)
CHENGDU ENERGY LIFE MATERIALS SCIENCE AND TECH DEVELOPMENT CO LTD RENSHOU BRANCH ELMB (CN)
RENSHOU ENERGY LIFE MATERIALS SCIENCE AND TECH CO LTD ELMR (CN)
International Classes:
C09K8/00; C09K8/58; E21B43/01; E21B43/16
Foreign References:
CN105331353A2016-02-17
CN104864267A2015-08-26
CN105715236A2016-06-29
CN104877660A2015-09-02
CN104278975A2015-01-14
KR20120034861A2012-04-13
Attorney, Agent or Firm:
MUDA INTELLECTUAL PROPERTY FIRM (CN)
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