Xin Hua Cai Jing·2025-11-13 02:26Core Insights - The emergence of "coal-rock gas" as a new unconventional natural gas resource is highlighted as a significant development in China's natural gas production [1][2] - As of October 2025, China's proven geological reserves of coal-rock gas are expected to exceed 700 billion cubic meters [1] - The concept of coal-rock gas was officially introduced at the 43rd "Cambridge Energy Week" in March 2025, distinguishing it from traditional coalbed methane [1][2] Group 1: Definition and Characteristics - Coal-rock gas is characterized by the coexistence of free and adsorbed gas, with a higher content of free gas compared to traditional coalbed methane, which primarily exists in an adsorbed state [1] - The new concept of coal-rock gas (Coal-rock Gas, CRG) was proposed based on exploration and development practices, reflecting its unique characteristics that align more closely with shale gas [1][2] Group 2: Theoretical Framework - The development of coal-rock gas is supported by the "total oil and gas system" theory, which integrates conventional and unconventional oil and gas resources into a unified framework [2] - The "coal system total oil and gas system" proposed by scientists at the China Petroleum Exploration and Development Research Institute explains the coexistence of various gas reservoirs, including coal-rock gas, coalbed methane, tight gas, and shale gas [2] Group 3: Exploration and Development Progress - China's coal-rock gas exploration has shown a trend of "multiple breakthroughs and rapid growth," with geological resource potential estimated at 50 trillion cubic meters [2] - Significant achievements have been made in the Ordos Basin, including the discovery of three large gas fields with geological reserves exceeding 500 billion cubic meters and the establishment of the first million-ton deep coal-rock gas field, the Daji Coal-rock Gas Field [2] Group 4: Production Forecast - National coal-rock gas production is projected to reach 2.7 billion cubic meters in 2024, with expectations to exceed 4 billion cubic meters in 2025 [3] - By 2035, China aims to establish a production capacity of over 30 billion cubic meters of coal-rock gas, with potential for further discoveries of condensate oil and gas reservoirs [3]