Study On Turbidite Of Tight Oil Reservoir With Well Logging Data

With the development of exploration degree,the unconventional oil and gas resources have gradually become the main source of growth and storage of oil and gas resources.Therefore,the tight reservoir such as unconventional oil and gas resources has gradually become the focus of the exploration and development.The turbidite reservoir in the study area is rich in oil and gas resources and has great potential for exploration and development.In this paper,the method of logging evaluation is studied for turbidite reservoir in Shengli oilfield.The lithology in the study area is very complex,sandstone,glutenite,gray sandstone and mudstone coexist in this area.Moreover,the lithology changes rapidly,the differences between wells is pretty huge,the heterogeneity is very strong,and the core data are relatively small,so it is difficult to identify the lithology using conventional methods based on conventional logging data.Therefore,new logging techniques such as imaging logging are used to calibrate conventional logging,and then we analyse the logging response characteristics,extract the logging characteristic parameters that reflect lithology sensitivity,and establish the lithologic identification model of the study area by multi-parameter fusion nonlinear processing method.In view of the tight glutenite complex reservoir and the problem of strong heterogeneity in study area,in this paper,the petrophysical facies analysis method is used to classify the reservoir types,and establish the reservoir parameter interpretation model based on petrophysical facies,the method shows similar characteristics in logging response characteristics of similar reservoirs,and the accuracy has been increased compared to unclassified by petrophysical facies,and the the heterogeneity of reservoir is weakened to a certain.At the same time,the multi parameter fusion method is used to extract the logging parameters which reflect the oil-bearing property of the reservoir,and the multi parameter discriminant model of oil,gas and water is established.The method is used to interpret and evaluate turbidite reservoirs in the study area,and good results have been achieved.These methods are applied to interpret and evaluate turbidite reservoirs in the study area,and good results have been achieved.