煤层顶板出水量测井预测方法研究

Study on Predicting Method of Water Yield Coal Seam Roof Using Logging Data

充分利用测井、排采资料,优选能够有效表征煤层顶板含水性的6个评价指标来构建排采出水量的预测模型,并以此模型对顶板出水量和含水性平面分布特征进行了划分。研究结果表明:所预测的煤层顶板出水量与实际排采吻合度较高;平面上,研究区5#煤层顶板南部含水性较强,呈现顶板厚层砂岩区出水量增大的态势。

Making full use of logging and production data, the six evaluation index is used to establish the prediction model of water yield, the water yield of coal seam is predicted, and the plane distribution characteristics of water yield distribution are divided in the studied area. The results show that the predicted the water yield of roof and the actual production is consistent; in the plane, the aquosity of 5^# coal seam roof is stronger in southern of study area, the water yield presents the tendency of increase with the thick sandstone roof.