APPLICATION OF SEISMIC SAND DEPICTION TECHNIQUE IN NINGDONG 26 AREA OF ORDOS BASIN

Qualitative and quantitative sand body prediction techniques are applied to the Yan 52 reservoir group at Ningdong Well 26 area. Using the seismic reflection patterns of the favorable sand bodies with various thickness and seismic characteristics, the spatial distribution pattern of sand bodies has been revealed. The results from geostatistics and random lithology inversion technique are fit well. High yield of industrial oil has been obtained from the reservoir depicted with the technique mentioned above.