Pore throat structure and classification of Paleogene tight reservoirs in Jiyang depression, Bohai Bay Basin, China |
WANG Yongshi,GAO Yang,FANG Zhengwei |
Fig. 7. R0, Ra, and R50 histograms for grade-I to grade-IV Paleogene tight sandstone reservoirs of turbidite facies in the Jiyang depression (215 of samples). |