By extracting different kinds of seismic attributes, the characteristics of these attributes were analyzed and 8 kinds of attributes that were sensitive to recognize the slump fan were obtained, including the average absolute amplitude attribute, the total absolute amplitude attribute, the maximum absolute amplitude attribute, the maximum trough amplitude attribute, the average energy attribute, the RMS amplitude attribute, the average reflect strength attribute and the arc length attribute, among which the maximum trough amplitude attribute was the best. Combined with the seismic and well profiles, the sedimentary characteristics and the spatial distribution laws of the slump fan of the member 2, 3 of Nenjiang Formation in Maoxing region were preliminarily revealed. The slump fan of Maoxing region is deposited on the front delta facies and has the provenance from the delta deposit which has a northeast direction. It can be distinguished into seven single fans and a single fan covers an area range of 2.8-7.0 km2.
Acta Scientiarum Naturalium Universitatis Pekinensis