KEY FACTORS ON EXPLORATION AND DEVELOPMENT FOR COALBED METHANE IN AUSTRALIA: RESEARCH OF IN-SITU STRESS

The breakthrough progress in exploration and development for coalbed methane in Australia is obtained over the past few years.In this paper,according to the research results in Australia,the relationships between in-situ stress and permeability and geologic structure are discussed;the prediction method of high permeability zones of coalbed methane using the in-situ stress measurement and numerical stress analysis is introduced in detail.