Three dimensional porosity modeling of volcanic reservoir in Changling gas field

To build the accurate and reliable three dimensional po-rosity distribution model accurately is very important to predict volcanic rock effective reservoir and built up reasonable development plan.According to the characteristic of the vol-canic reservoir of Changling gas field,the neural network method has been used to build the individual well porosity in-terpretation model,the volcanics were divided into three vol-canical bodies,and further more,the volcanics and lithology controlled modeling strategy has been put forward to build the porosity distribution model,by using sequential gauss simulation method and Co-kriging method.The three di-mensional porosity parameter modeling has been built up.In result,the porosity distribution model has proved to fit the geological precognition and production reality,which has been applied for production.