Overseas CBM Exploration and Development Status

The International Energy Agency estimates that the total CBM resources of 74 countries that have CBM resources in the world amount to about 168 trillion cubic meters, of which 90% of CBM resources are distributed in 12 major coal-producing countries – Russia, Canada, China, Australia, the United States, Germany, Poland, the United Kingdom, Ukraine, Kazakhstan, India, South Africa.

The CBM industry is a relatively new clean coal industry worldwide. In the major countries currently engaged in coalbed methane exploration and development, the countries that have achieved commercial development of coalbed methane and have already formed a coalbed methane industry are the United States, Canada, Australia, and China. The countries that are conducting large-scale CBM exploration and development tests and have preliminary commercial development conditions in some test areas include India, the United Kingdom, and Poland. Countries that have already conducted small-scale CBM exploration experiments or are actively preparing to participate in CBM development include Chile and Brazil. , Venezuela and others.

The United States ranks first in the world in the production of coalbed methane, and the ratio of coalbed methane resource production to its natural gas production has increased year by year, and has increased from less than 1% in 1989 to nearly 10%.

The price of gas in the United States has always been relatively high, and the development of coalbed methane can obtain good economic effects. According to analysts from Guojin Securities, one of the reasons for the development of coalbed methane in the United States is to benefit from the extension of tax subsidies. As early as 1980, the federal government promulgated the "Unexpected Profits from Energy Law" to extend the years of subsidies for drilling CBM and CBM production. After policy subsidies, the internal rate of return for CBM development projects can reach 20%.

The United States took the lead in forming a systematic theory and technology related to the exploration and development of coalbed methane resources, including drainage and gas recovery technologies, reservoir stimulation production stimulation technologies, and reservoir simulation technologies. The United States also used ground drilling hydraulic fracturing technology to extract coalbed methane resources.

In recent years, the production of coalbed methane in Australia has also greatly increased. In 2009, Australia had a total of 5,200 coal production wells with proven reserves of 493.4 billion cubic meters of coalbed methane and a production volume of 4 billion cubic meters. There are many new technologies for coalbed methane extraction in Australia. The main method currently adopted is to increase the energy and gas permeability of gas flow in coalbed methane through gas injection.