Coalbed Methane System of the Cretaceous Sahai Formation in the Fuxin Basin
The investigation on the coalbed methane system is a guide to the exploration and development of coalbed methane. The source and reservoir rock is the coal seams in the Sahai Formation. The coalbed methane in the Sahai Formation is sealed by the roof comprising mudstone and lutite of the fourth Sahai Formation. The overburden is the fourth Sahai Formation and Fuxin Formation deposits. The hydrocarbon generation of the source rocks reached its first peak in the late Sunjiawan period, and the highest maturity was about R0=1.3％. The dolerite intrusion during the Himalayan orogeny enhanced the coal maturity and caused a second peak of hydrocarbon generation. In addition, the underwater brought many bacteria generating second biogenic methane. Then the coalbed methane is reserved and a critical moment of the coalbed methane system is at the end of the Late Tertiary. So the coal seams in the Sahai Formation are favorable for coalbed methane exploration and the Dongliang district will be a promising area for coalbed methane exploration.
coalbed methane system Sahai Formation Fuxin basin.
Zhu Zhimin Cui Hongqing Zhou Jiayun
Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences,C College of Resource & Environmental Engineering, Liaoning Technical University, Fuxin 123000, China
国际会议
The IPACES 6th Annual Meeting(“现代地球科学，交流与合作国际学术研讨会暨第六届IPACES学术年会)
武汉
英文
282-284
2007-04-25（万方平台首次上网日期，不代表论文的发表时间）