On Log Response Characteristics of Igneous Reservoir in Huanghua Depression

Volcanic rock is widely developed both in the vertical and horizon direction in Huanghua depression.Because of the complexity of its lithofacies,lithologies and reservoir spaces,it′s always difficult to identify the depression for geologists.To solve these questions,we studied the characteristics of log responses to various igneous reservoirs by taking full advantage of well logging data that have good continuity,high resolution and big cover area around the boreholes.Based on those logging responses,the types of the igneous reservoir is identified in Huanghua depression and a method is given which can be used to evaluate the reservoir.File log application shows the method is good and(practical.)