煤层气地质研究进展与趋势

ADVANCES AND TENDENCIES IN GEOLOGICAL RESEARCHES ON COALBED METHANE

汤达祯 秦勇 胡爱梅

TANG Da-zhen QIN Yong HU Ai-mei

中国地质大学, 北京, 100083 2. 中国矿业大学, 江苏, 徐州, 221008 3. 中联煤层气有限责任公司, 北京, 100011

China University of Geosciences, Beijing 100083, China 2. China University of Mining and Technology, Xuzhou, Jiangsu 221008, China 3. China United Coalbed Methane Corporation, Ltd. , Beijing 100011, China

煤层气地质研究正面临以下挑战:a)煤层气成藏的地质过程与动力学机制研究,以揭示生气性和储气性的协调发展关系,查明复杂地质条件下煤层气藏的形成机理、成藏类型和分布规律;b)煤层气储集系统与聚散机制研究,以剖析煤-水-气的耦合关系与煤的储层特性共同制约煤层气的扩散、渗流、运移、逸失和聚集的过程;c)煤层气藏经济高效开发的场效应研究,以探讨地球物理场和地球化学场与人工改造、强化开采间的互动机制,有效预测煤层气的勘探开发效果.

We are presently involved in the challenge of geological research on coalbed methane,including:a)to reveal the coordinated relationship between the generation and the preservation of coalbed methane and to discover the forming mechanism,pool-forming types and distribution rules of coalbed methane pools under complex geologic conditions by studying on the geologic processes and dynamical mechanism of pool-formation;b)to analyse the processes of diffusion,percolation,migration,escaping and accumulation of coalbed methane which are commonly restricted by coal-water-gas coupling connection and coal-reservoir features by studying on the reservoir systems and accumulating-disseminating mechanism of coalbed me-thane;c)to probe into the mutual stimulating mechanism between the geophysical and geochemical field and man-made reconstruction and intensified exploitation and to effectively predict the results of exploration and exploitation of coalbed methane by studying on the field effects during the economical and high-efficiency exploitation of coalbed methane pools.

国家重点基础研究发展规划(973)项目(2002CB21170);高校博士学科点专项科研基金项目(20020491003).

https://doi.org/10.11781/sysydz200306644