A Technology Study On Logging Interpretation And Evaluation Of Low Porosity And Permeability Reservoir In Block Hei 46

In this article , Block Hei 46 of Daqingzijing oil field is choosed as target area for study , make full use of his simulation of the positive and negative mud invasion of new technologies, the establishment of sub-sedimentary microfacies porosity, permeability and sub-pore model to explain the structure of the establishment of oil-water layer to identify new ways starting from the geological analysis in the laboratory analysis of oil test data based on the summary of the causes of low porosity and low permeability mechanism, that the particles, clay content and the impact of fresh water mud invasion is the formation of low porosity and low permeability of the main factors; on this basis summed up the low porosity and low permeability reservoirs in electrical characteristics, carried out targeted pore structure, freshwater mud logging affect the calibration of electrical work, try to make use of logging methods to strike a study of pore structure parameters, forming a pore throat radius , the value of pressure in the interpretation of model parameters; mud invasive research is in the actual reservoir, water level sensors with the emplacement of lateral resistivity increased bubble resistivity curves based on the use of positive and inverse simulation technique, developed 32 kinds of is, inversion model and freshwater mud resistivity sensor dynamic calibration chart, and use this calibration chart of all the wells of 46 blocks in different layers of oil saturation for the correction, better; in sedimentary microfacies and pore structure study based on accurate porosity, permeability, saturation interpretation model, the application of core nalysis data authentication, the result is better; Based on research of sedimentary micro facies and por structure , the precise model of porosity, permeability and saturation is established, recognised the oil-water by many kinds of methods, use of these method make second interpretation to 46 blocks,and the interpretation consistent with the rate of increase, finally serviced for testing plan and the reserves submission.Basicly solved the problem of low coincidence rate and low testing successful rate.