基于樊庄区块煤层气垂直井勘探开发资料,为寻找樊庄区块高产能有利目标区,运用数值模拟、对比分析法,在考虑构造因素和不考虑构造因素2种情况下分析了煤层气资源丰度、含气饱和度、含气量、煤层厚度、临储比与日均产气量的关系。结果表明:在不考虑开发工艺的影响条件下,煤层气5个赋存参数对产能影响大小的先后顺序为临储比、含气饱和度、资源丰度、含气量、煤层厚度,并且临储比是影响樊庄区块产能的直接主控因素。因此高临储比、高含气饱和度储层是该区煤层气垂直井勘探开发的首选目标层。

Based on the exploration and development information of coal bed methane vertical well in Fanzhuang Block,in order to seek a high production favorable target zone in Fanzhuang Block,the numerical simulation and the comparison analysis method were applied to analyze the relationship between the resource richness,s aturation of gas content,gas content, seam thickness,critical reservoir ratio and average daily gas production in consideration of the structure factors and in no consider ation of the structure factors.The results showed that under the condition of no consideration of the development technique influences, the five deposit parameters of the coal bed methane affected to the gas production capacity in flowing sequence: the critical reservoir ratio,the saturation of gas content,resource richness,gas content an d seam thickness.The critical reservoir ratio was the direction main controlled factor affected to the gas production in Fanzhuang Block. Therefore,the high critical reserv oir ratio and high gas content saturation reservoir would be the first selected target stratum for the exploration and development of the coal bed methane vertical gas W ell in the block.

国家科技重大专项资助项目(2008ZX05034-004；2011ZX05034-05；2011ZX05042-03)；