Methods for preparing for the gasification of coal underground

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E21C43/00Methods for preparing for the gasification of coal underground

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Information Patent Application
NOZZLE AND INJECTION DEVICE FOR USE IN UNDERGROUND COAL GASIFICATIO...
- Publication number 20190360318
- Publication date Nov 28, 2019
- ZHONGWEI (SHANGHAI) ENERGY TECHNOLOGY CO. LTD
- Zhenhua Min
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
UNDERGROUND GASIFICATION IGNITION METHOD
- Publication number 20160251950
- Publication date Sep 1, 2016
- ENN COAL GASIFICATION MINING CO., LTD.
- Feng CHEN
- E21 - EARTH DRILLING MINING