Study on Classification Criterion of Volcanic Reservoir with Logging in Xingcheng Area,Xushen Gas Field

There are various pore types,complicated pore structure and high heterogeneity in volcanic reservoir in Xingcheng area of Xushen gas field.It is the key topic to identify reservoir in the area.Based on lithology identification,fluid identification and reservoir parameter interpretation,applying conventional loggings,nuclear magnetic logging and well testing data in integration,established is a logging classification criterion of volcanic reservoir in Xingcheng area,by which the reservoirs are classified as 3 types of good,common and bad according to their petrophysics properties and gas bearing.Its application effect in more than 30 wells in the area is rather good.