Study On Reservoir Logging Evaluation Method Of Deep Natural Gas In Dehui Fault Depression

With the continuous deepening of exploration and development of Jilin oilfield, the reservoir is more and more complex. Deep gas reservoir has become the object of exploration and development in Dehui area. Deep burial,facies complex and fluid properties of the particularity of deep natural gas reservoirs in Dehui lithology with conventional logging data, the logging interpretation model of reservoir parameters and reservoir fluid type identification and productivity prediction is difficult. It is urgent to carry out technology research and Research on these problems in oilfield exploration and development, in order to achieve through the logging data interpretationevaluation, improve the recognition rate of the target fluid properties.In order to better implement the deep natural gas reserves of Dehui fault, this paper divided area, stratumlithology, geologic model building, the quality evaluation and standardization of well logging curves using the histogram and the crossplot method, establish the lithology identification of corresponding sample set, given thelithologic identification standards; secondly, in the analysis of "four" relationship on the regional, hierarchical bit ofshale content, porosity, water saturation logging interpretation model of reservoir parameters, parameters can meet the demands of production; third, a fluid identification method and standard on the basis of syntheticparameters, effectively improve the coincidence rate of interpretation, which laid the foundation for the reasonableinterval of the potential.The main purpose of this study is to establish effective fluid identification of well logging interpretation chart and the standard, for the establishment of the logging interpretation model of reservoir parameters, improve the Dehui fault depression of fluid identification accuracy of logging interpretation, provide the basis and technical support forthe study area for reserves evaluation.