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我国高煤阶煤炭资源储量丰富,达到煤层气资源总量的1/3左右,但过去较长一段时间由于人们受美国煤气勘探经验的影响,考虑到高煤阶每层自身演化程度、割理发育、渗透率等方面不理想,忽视对高煤阶地区的煤层气的开发和运用,但现阶段人们逐渐发现高煤阶地区的煤层的渗透性在期次构造运动等因素的作用下会得到改善,而且通过高煤阶地区的煤层勘探可有效的定位高产富集区,所以高煤阶地区的煤层起勘探逐渐受到重视。本文为对高煤阶地区的煤层气勘探产生更加全面的认识,在对我国高煤阶地区煤层气发育特点分析的基础上,针对高煤阶地区的煤层气勘探思路和成功案例展开研究。
China’s high-rank coal reserves are rich in coal resources, reaching about 1/3 of the total CBM resources. However, for a long time in the past, because people were influenced by the experience of gas exploration in the United States, taking into account the degree of evolution of each layer of high- Development and permeability are not ideal, ignoring the development and application of CBM in the high coal rank region, but at this stage people gradually find that the permeability of the coal seam in the high coal rank region will be obtained under the action of the period tectonic movement and other factors Improve, and through high-rank coal seam exploration can effectively locate high-yield enrichment area, so the coal seam in the high-rank coal area exploration has gradually received attention. In this paper, a more comprehensive understanding of CBM exploration in the high coal rank region is generated. Based on the analysis of CBM development characteristics in the high coal rank region of our country, aiming at the CBM exploration ideas and successful cases in the high coal rank region,