Seismic attribute oil-gas reservoir prediction technology and its application

Reservoir prediction and description is one of the complicate key technologies of oil-gas accumulation petroleum exploration and development in the modern times.In recent several years seismic attribute analysis has become a reservoir prediction technique which can prompt horizontal resolution accuracy and it has made great long-term development,and now it has been used in all steps of petroleum exploration and development.Twenty kinds of seismic attributes were extracted from Taizhou Formation sandstone reservoir of Qintong sag in Northern Jiangsu Basin,along the layer extraction method.After optimized,front delta subfacies sedimentary could be recognized by well–seismic fine calibration during window time,indicating the delta progradation distribution to deep lake.Over thirty kinds of seismic attributes were extracted from Yingcheng Formation volcanic rock reservoir of Changling fault depression in Songliao Basin,through the average attainment between the top and bottom layer time thickness as a constraint interface,identification of the impedance and seismic faces,we carefully distinguished characteristics of the planar distribution of seismic attributes of volcanic reservoir,delineated anomaly area of seismic attribute under the direction of the commercial oil flow drilling,and then delineated horizontal distribution of volcanic rock reservoir.