Automotive Jun 25, 2022 02:04 PM (GMT+8) · EqualOcean
PetroChina announced that the daily output of Qinshui coalbed gas field in Huabei Oilfield has exceeded 5.5 million cubic meters, and has built China's first coalbed gas field with an annual surface extraction capacity of more than 2billion cubic meters, adding "bottom gas" to the national natural gas independent support capacity.