A comprehensive evaluation method for multiple parameters of low resistivity reservoir logging
There are many sets of fluid systems in the Guantao formation of P oilfield,Bohai Sea,and the relationship between sand bodies and oil-water interface is complicated,gener-ally develops low resistivity reservoir.Due to the complex genesis and types of low resistivity reservoir,low resistivity reservoir have different petrophysical and log response characteris-tics.The evaluation methods based on conventional logging tend to underestimate or even omit the low resistivity reservoir,especially when the low resistivity reservoir has the charac-teristics of low gas content,the resistivity characteristics and gas content are difficult to dis-tinguish from the water layer.Combined with geochemical logging and three-dimensional quantitative fluorescence logging,the evaluation parameters were optimized and a multi-component comprehensive evaluation method was established.Through the verification,the fast identification coincidence rate of low resistance reservoir in the study area is greatly im-proved,which provides a strong basis for the development and deployment of P oilfield.