基于三维地震频率衰减属性预测煤层瓦斯富集区——以淮北芦岭煤矿Ⅲ102、Ⅲ106采区为例

Coal Seam Gas Enrichment Zone Prediction Based on 3D Seismic Frequency Attenuation Attribute——A Case Study of Winning Districts Ⅲ 102 and Ⅲ 106 in Luling Coalmine,Huaibei

基于三维地震频率衰减属性分析技术对淮北芦岭煤矿Ⅲ102、Ⅲ106采区8煤层瓦斯富集区进行了分析研究,发现频率衰减正值斜率往往表明分析区缺乏瓦斯富集,而频率衰减负值斜率与瓦斯富集成正相关。根据该结论,对研究区的8煤层构造煤发育区与瓦斯富集区进行解释。结果表明,构造煤发育区与瓦斯富集区皆集中于该区的南部和东部,二者具有较好的对应关系。

Based on 3D seismic frequency attenuation attribute analytic technology carried out analytic study on coal No. 8 winning dis-tricts III 102 and III 106 in Luling coalmine, Huaibei has found that the frequency attenuation positive slopes frequently showing analy-zing area short of gas enrichment, while frequency attenuation negative slopes positively correlated with gas enrichment. According to the conclusion, carried out study area coal No. 8 tectonoclastic coal developed zone interpretation, the result has shown that the tectono- clastic coal developed and gas enrichment zones are all concentrated in south and east parts of the area, thus has better correspondence between.