Logging Interpretation Method Study On Complex Lithology Reservoir In Xing'an Ling Group Of Suderte Area

Xing'anling group of Suderte Area in Halaer Basin is a new oil pool which wasfound in recent years,and it has prodigious developable potential.It has the following characteristics:complex lithology and complex hole and having difficultying in computingreservoir parameters.Identifying lithology ,computing reservoir s parameters and available thickness must be studied,and establishing applicable methods of reservoir logging interpretation is significant for Xing'anling group of Suderte Area to develop effectively.During the research,a great deal well logging data,testing core data and thin section analysis data has been collected,and" relation of four characteristics" has been described detailedly according to character analysis of reservoir physical property,oiliness, litholog, electrical responseand.and primary lithology of reservoir and logging response characteristics summarized based on it.All the reservoir lithologys have been classified into 10 sorts with the method of Fuzzy Clustering Analytical,then the samples have been trained and the typical characteristics have been generalized with Neural Networkmethod.Applicable method of lithology identification has been established Based upon all kind datas,the instance interpretation shows coincidence is 86.6%.Computing reservoir parameters is groundwork of logging interpretion.Porosity is Computed by sound wavestratum factor formulary.Relation of effective porosity and air-permeability is studied.Applicable methods of achieving water-saturation has been established based upon core analysis datas, experiment datas and logging datas after analysis of Clay occurrence form.On the basis of ithology identification,the lower limits of â…£ oil formation physical property and underneath â…£ oil formation have been deduced respectively according to the research on relationsh of four characteristicsip.The reservoirs have been divide into tuffaceous reservoir and the other ones,and the lower limits of electrical responseand have beensumed up,and effective reservoir thickness standard have been also established.