Inventor

TANG DAZHEN

CN3 patents

Patents

3 patents

US11242736B2Feb 8, 2022

Fracturing device for extraction of coalbed methane in low permeability reservoir

UNIV CHINA GEOSCIENCES BEIJING0 citations46

US11203925B2Dec 21, 2021

Drilling device at extracting opening for extraction of coalbed methane

UNIV CHINA GEOSCIENCES BEIJING0 citations46

US11497361B2Nov 15, 2022

Adjustable gas detection device for coal bed

UNIV CHINA GEOSCIENCES BEIJING0 citations42