Research And Application Of Micro Phase Zhao108Block Sedimentation Jinxian Depression

Zhao108fault block heavy oil reservoir, oil-water viscosity ratio, water cut risesquickly, in order to improve the development effect of water flooding after waterinjection development, investment, namely the development cycle of weak gel profilecontrol and flooding, after the implementation of good water and increase oil effect.But with the development of times profile control, inter layer plane contradiction isbecoming more and more obvious, compared with conventional water flooding morecomplex distribution of underground remaining oil potential is difficult,understanding.Remaining oil description is the key to determine the direction and measures ofthe next step adjustment of oil reservoir set. But the research method of theconventional dynamic residual oil distribution focuses on the study of longitudinalresidual oil, residual oil distribution on the plane of unclear understanding. The use ofphase controlled residual oil analysis method, which can make up for the deficiencyof conventional dynamic in plane residual oil description.This research uses the key technology of core analysis, well logging curveanalysis of all kinds of facies marks, description, determine the types of sedimentaryfacies, sedimentary facies model and establish the standard microfacies profile,described6main layers of sedimentary reservoir microfacies.Based on the study of sedimentary microfacies, carry out research on phasecontrol of residual oil. Through the production and injection profile, dynamicproduction reaction, KH value by using material balance method based on the data, tosplit the output and absorption situation of each layer, combined with the sedimentarymicrofacies study results, drawing water classification map of half quantitativeanalysis of potential flooding conditions and residual oil. By phase controlled residualoil study that Zhao108fault block sand three of oil group in the southwest regionused in good condition, sand three III oil group in the reservoir producing condition ofhigh position better.Based on the understanding of the potential, proves the feasibility of strataadjustment is, and to develop a hierarchical system adjustment scheme.