中国矿山工程

After the formation of a coal face, there will inevitably be some differences between the exposed faults in roadways and the interpretation result of the 3D seismic data. It is necessary to re-predict faults in the face before mining. The seismic data contains much useful information that has not been discovered. If the exposure of faults can be combined with the 3D seismic data to re-predicte faults. It will effectively improve the accuracy and applicability of the re-prediction results. The volumetric curvature provides a simple method for re-predicting faults in coal faces. The calculation parameters are determined based on the occurrence of the exposed faults, and the volumetric curvature attributes are generated from the stacked seismic section. The slice along the coal seam of the attribute body can effectively reflect the shape of the target fault. The validation was conducted using 3D seismic data and faults measurement data from the two roadways of the Renjiazhuang 110905 coal face. The result showed that the wavelength parameters were obtained from the measured exposed faults. The volumetric curvature attributes generated from these parameters can better show the extension of the DF6, the DF12, and other associated faults in the 110905 coal face. It will provide a reliable basis for fault prediction and adjustment of mining plans.