Three-dimensional Model Of The Distribution Of Residual Oil And Water Flooding Visualization Technology

With the global economic development and national economic development, increased dependence on oil, oil and energy as the lifeblood of economic development, and gradually become the most important concern. Crude oil reservoirs are complex porous media structure,waterflood residual oil at the microscopic pore scale parameters of efficiency of waterflood residual oil level of influence, may waterflood residual oil reservoir and how to adapt to how the various types of fluid flow study reveals its liquidity mechanism provides effective theoretical basis.According to figures porosity core realistic reservoir porosity characterized by three-dimensional network model construction, water flooding oil displacement mechanism and affect oil displacement efficiency factor, simulation of fluid flow in the channel, a comprehensive analysis of microscopic pore structure factor on oil affect the efficiency can provide guidance and theoretical support for improving waterflood oil recovery efficiency.One of visual modeling technology is the means to resolve this issue at this stage, either through visualization technology can simulate physics simulation, but also with the actual production of convergence, waterflood oil displacement efficiency factor through visual simulation simulate repeated.First, the use of natural core coordination number of X-CT scan data obtained based on the use DataViewer software by looking at the coordination number of the coordination number of different permeability core samples were analyzed. Secondly, the pore size distribution and throat, the construction method gives pore throat radius and shape of the digital core and determine the pore size distribution and throat through normal distribution and Weibull distribution function correction and elaborated each microscopic pore structure parameter, how to determine the wettability of the wettability characterization methods and evaluation criteria. Using the principle of least resistance to solve the flow changes within the pores of different fluids, like water and electricity combined with water flooding the realization of the principle of dynamic flow simulation. Microscopic pore structure of different parameters affect the remaining waterflood oil recovery increase value, analysis of the various parameters on the characteristic microscopic pore waterflood residual oil displacement efficiency in the effect size. Third, with the VB compiler, by the average coordination number and average pore throat ratio, wettability, Weibull distribution, thedistribution algorithm is too amendments, the establishment of water flooding dynamic process mathematical model to calculate the preparation simulate waterflood oil the program calculates the coordinate position of pores and throats. Accordingly, the call is calculated corresponding geological data and three-dimensional coordinates of the pore throat, the establishment of a three-dimensional pore network model of irregularities, the constructed three-dimensional digital imaging core to achieve skeleton model visualization.