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煤层气是赋存在煤层中的烃类气体,是煤的伴生矿产资源。在三维地震野外采集中保证质量,在资料处理上选用方法科学,并对工区的地质构造情况进行深入了解,这样能够更有效地提高煤层气富集区的预测精度。目前,利用三维地震资料预测煤层气富集区的主要方法有:基于双相介质理论预测煤层气富集区和利用地震属性技术探测煤层气富集区。将这两项技术相结合,能够更准确地指导煤层气开发阶段的井位布置,也可用于确定瓦斯地质研究的靶区,为矿方提供可靠的地质成果。
CBM is the hydrocarbon gas that exists in the coal seam and is an associated mineral resource of coal. In the field of 3D seismic acquisition to ensure the quality of the data processing methods used in scientific and in-depth understanding of the geological structure of the work area, so as to more effectively improve the prediction accuracy of CBM enrichment area. At present, the main methods of predicting CBM-rich areas using 3D seismic data are as follows: Prediction of CBM-rich areas based on the dual-phase medium theory and detection of CBM-rich areas using seismic attribute techniques. The combination of these two technologies can more accurately guide the well location in the CBM development stage and can also be used to determine the target area for gas geological research and provide reliable geological results for the mine.