中国可能的煤层气高产走廊:中亚造山带北缘中-新生代含煤盆地群

【作者】 方爱民； 侯泉林； 张俊敏； 帕尔哈提； 陈飞；

【Author】 FANG AiMin;Hou Quanlin;Zhang Juanmin;Pa Erhati;Chen Fei;Mining Department,Xinjiang Engineering College;Institute of Geology and Geophysics Chinese Academy of Sciences;Key Laboratory of Computational Earth Dynamics,CAS;College of Earth Science, University of Chinese Academy of Sciences;

【机构】 新疆工程学院采矿工程系； 中国科学院地质与地球物理研究所； 中国科学院计算地球动力学重点实验室中国科学院大学地球科学学院；

【摘要】 位于中国北部的中亚造山带北侧的"中亚煤层气聚集域",无论是在其区域构造背景和构造演化历史,还是在含煤盆地煤储层、煤变质程度方面,均有着与北美落基山造山带及其煤层气高产走廊含煤盆地相似的特点,而且其规模更为宏伟,而近期的这一区带局部地区的煤层气勘探开发实践也展示了其高产走廊的特点。本文通过对中亚造山带和煤层气中亚聚集域与北美落基山造山带及其煤层气高产走廊的主要地质特征(包括含煤盆地性质、造山带构造活动特点、煤变质程度、煤储层渗透率等方面)的对比,分析了我国中亚煤层气聚集域煤层气富集成藏的基本条件,提出中亚造山带北缘的中亚煤层气聚集域有望成为我国煤层气高产走廊带,为中国煤层气产业化进程中所面临的宏观部署和决策调整提供理论依据。更多还原

【Abstract】 The central Asian coal-bed methane enriched belt which is located in the northern edge of the central Asian orogenic belt, has similar characteristics with those of the Northern American Loges orogenic belt not only in their tectonic backgrounds and evolutionary histories, but also in the properties of their coal-bed reservoirs and coal ranks, and it is even larger than the later in its scale. Recent exploration of the coal-bed methane in this region also shows high production of the coal-bed methane resources. However, few studies on the characteristics of coal-bed methane reservoirs have been carried out in this belt so far. In this article, a comparative study has been conducted on the basic geological backgrounds such as the properties of the coal basins, the coal ranks and the permeability of the coal-layers to analysis the basic conditions of the enrichment of the coal-bed methane of the central Asian coal-bed methane belt, and to provide theoretical support of the change of the national strategies of the coal gas exploration.更多还原