Study on 3D seismic interpretation and development characteristics of active faults in Gugui mining area

Abstract

In order to investigate the development characteristics of the Gugui fault depression zone,a 3D seismic approach was used for the study.First,a high-resolution seismic data processing was performed on the faulted zone by using the method of prestack time migration.In the case of accurate homing,seismic attributes and 3D visualization analysis were used and a full 3D interpretation method through combination of body-surface-line-point were used to inversigate fully implement faults in the Cenozoic development in the study area.On this basis,a time-depth conversion was made on the bottom boundary of the Cenozoic and a depth contour map was obtained and A total of 8 active faults were interpreted in the region,and it was found through statistics that these faults were basically north-west oriented and tending to be almost upright with strong developmental regularity.With long extension length and large cutting depth,some faults also develop faults in the coal-bearing strata.With the influence of mining and the release of stress,fault dislocation surface could be widened,and it may form a water flow channel.Therefore,it is a major threat to the safe mining of coal mines and must be given sufficient attention.

Keywords

• active faults
• 3d seismic
• high-resolution processing
• full 3d interpretation
• water flow channel