log-log plot
1.In the evaluation of mud cap layers, cross-plot and nuclear magnetic resonance log porosity curve overlap method was adopted to the comprehensive analysis of YN2 well tight sand reservoir and 3 sets of reservoir-seal combinations are found accurately.
2.The results mainly shows that for the plot of magnitude versus (log)cumulated frequency at a single source or a seismogenie fault—segment,the part of moderate and small size events still obeys G—R (Gutenberg—Richter) relation(exponent distribution) ,while the part of mainly size events is far away from the G—R relation curve of the moderate and small events, or does not obey exponent distribution or b value model.
