关键词: 沁水盆地, 煤层气, 勘探开发

Abstract: Huabei Oilfield is the first one that develops CBM industry as an emerging industry in China, and the industry has been developed and constructed on a great scale. This paper introduces the exploration and development of CBM resources of Huabei Oilfield Company in Qinshui Basin, Shanxi Province where high-rank coal was developed. During the "11th Five-Year Plan" period, the Company has actively explored the coal-forming environment, gas storage mechanism, and gas happening law of high-rank coal, organized research on tackling technical problems in CBM drilling, fracturing, extraction, gathering and processing, and carried out field test on horizontal well development techniques and construction of demonstration projects, based on the principle of "innovating geological cognition, breaking through technical bottlenecks, increasing per-well production, and developing systematic techniques". Through five years' practice and exploration, the Company has had more than 100 billion cubic meters of proven geological reserves cumulatively, drilled more than 1000 wells, and constructed six gas gathering stations and one central processing unit with one billion cubic meters of annual process load. Annual CBM production of the Company has reached 800 million cubic meters. The Company has constructed PetroChina's first digital and commercial demonstration area for CBM development, pioneering work in commercial production. It is now the leader of PetroChina's CBM business development.

Key words: Qinshui Basin, CBM, exploration and development