Lithofacies identification model for deep high-porosity and high-permeability carbonate reservoir and its applications:Examples in Puguang Gas Field
HUANG Han-dong1,2, LUO Qun3, ZHAO Di4
1 CNPC Key Geophysical Laboratory,China University of Petroleum,Beijing,102200,China;
2 Enhanced Oil Recovering Research Center,China University of Petroleum,Beijing,102200,China;
3 Research Center of Basin and Reservoir,China University of Petroleum,Beijing, 102200, China;
4 Deyang Branch E&P Research Institute,SWPB,SINOPEC,Deyang,Sichuan,618000,China
Abstract：It is very difficult to predict of deep high-porosity and high-permeability reservoirs in Puguang Gas Field by seismic data due to their complex lithology,lithofacies and strong anisotropy.Based on logging data of 10 wells in the gas field,two categories of reservoirs exists,which include nine kinds of reservoirs,among of which oolite subfacies,sand-gravel subfacies and reef subfacies are beneficial reservoir types of high porosity and high permeability.In this work,a lithofacies identification model for deep high-porosity and high-permeability reservoir is proposed based on high-accuracy inversion.Combining lithofacies and regional sedimentary setting analysis,external feature,internal structure and relationship with surrounding rocks,high-porosity and high-permeability carbonate reservoirs in Puguang Gas Field are predicted for further exploration.
黄捍东, 罗群, 赵迪. 深层高孔渗碳酸盐岩储层岩相识别模式与应用——以普光气田为例[J]. 石油地球物理勘探, 2011, 46(2): 275-280.
HUANG Han-dong, LUO Qun, ZHAO Di. Lithofacies identification model for deep high-porosity and high-permeability carbonate reservoir and its applications:Examples in Puguang Gas Field. OGP, 2011, 46(2): 275-280.
