Abstract：Igneous rock incursions in coal seam have serious damages, such as coal seam complicating, coal quality deterioration and coal coking. These damages affect mining safety and mine layout. Seismic reflection characteristics and signal spectrum caused by igneous rock incursions are quite different from those of normal coal seams on seismic sections. We use GeoEast interpretation system to predict igneous rock distribution in Coalmine A in South China. Firstly we obtain seismic reflection characteristics of igneous rocks by forward modeling, then analyze seismic amplitude attributes, spectrum decomposition, and waveform clustering in combination with drilling calibration, finally predict the range of igneous rocks.
李强, 刘建红, 张中平. 应用GeoEast解释系统预测煤层中火成岩的侵入范围[J]. 石油地球物理勘探, 2014, 49(s1): 192-197.
Li Qiang, Liu Jianhong, Zhang Zhongping. Prediction of igneous rock incursion in coal seam with GeoEast. OGP, 2014, 49(s1): 192-197.
