摘要
The technology for recovery of coal-bed methane developed by China National Petroleum Corporation (CNPC), which is the parent
The technology for recovery of coal-bed methane developed by China National Petroleum Corporation （CNPC）, which is the parent company of PetroChina, will help the nation lower reliance on overseas companies and better position itself to produce that resource at a low cost. Trapped in coal deposits, the special type of methane is one among several types of high-energy unconventional gases that are expected to become important sources of the country＇s energy.
