The Erlian Basin is mainly a tiny lake basin,and the facies belt changes rapidly in the horizontal direction,less than 2 km and 3 km.The fan types are diverse,and the structure is complex.Through data analysis,it is clear that the seis-mic resolution is low,and the wave impedance curve can roughly distinguish sand and mudstone,but it is not sensitive to high-quality reservoirs.The resistivity and density curves are relatively sensitive to high-quality reservoirs.Based on data analysis,a high-quality reservoir prediction process is developed:first,the seismic data is processed by frequency extension;secondly,fault modeling and two-dimensional phase-controlled geostatistical inversion are carried out.Third,the density and resistivity data volume are predicted by cloud transformation;finally,through the high-quality reservoir interpretation template,the in-tersection interpretation is carried out to predict the distribution of high-quality reservoirs.The predicted results have reached expectations.
关键词
拓频/交会/相控反演/云变换
Key words
frequency extension/crossplots/acies-controlled inversion/cloud transform
维普
万方数据