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与含煤岩系相关大气田的开发是中国天然气储产量快速增长的主体,为了进一步阐明与含煤岩系相关大气田的勘探前景,在概述了已发现大气田分布特征的基础上,用实例总结了含煤-含气(油)盆地形成条件,明确指出虽然不同类型含煤盆地发展演化的构造地质环境不完全相同,但是所有含煤盆地能否转化成为含煤-含气(油)盆地的关键因素是相同的,即:含煤岩系沉积期间和含煤岩系沉积后是否以沉降为主,沉积期间及沉积后所经历的构造地质作用能否有效匹配.上述构造地质环境持续时间越长,各种构造地质作用有效匹配程度越好,越利于转化成为含煤-含气(油)盆地,越有利于形成大型气田.中国特定的构造地质环境决定了含煤岩系是中国最重要的气源岩,一些大中型含煤盆地是构造地质环境最优越的盆地,还有较大勘探潜力,仍然可以继续发现更多的大型煤成气田,是未来相当长一段时间内中国天然气产量持续快速增长的主要勘探方向.
In order to further clarify the prospect of gas fields related to coal-bearing rocks, the development of large gas fields related to coal-bearing rocks is the main body of the rapid growth of natural gas reserves in China. On the basis of an overview of the distribution characteristics of the discovered gas fields, The formation conditions of the coal-bearing gas-bearing basin are summarized. It is clearly pointed out that although the tectonic and geological environments of different types of coal-bearing basins are not completely the same, whether all coal-bearing basins can be transformed into coal-bearing gas-bearing The key factors are the same: whether the coal-bearing rocks are sedimentary during the sedimentary period and the coal-bearing rocks are sedimentary or not, and whether the tectono-geological effects experienced during sedimentation and sedimentation can be effectively matched. The longer the effective matching degree of various tectonic geological functions is, the more favorable it is to transform into a coal-bearing gas-bearing basin, which is more conducive to the formation of large-scale gas fields. The specific structural geology in China determines that the coal-bearing rock series are the most abundant in China Important gas source rocks, some large and medium-sized coal-bearing basins are the most favorable basins for geologic setting and have great exploration potential, and can still find more large-scale coal gas fields. Come within quite a long time China’s natural gas production continued rapid growth of the main exploration targets.