Reservoir Modeling And Evaluation To N₁ Reservoir Of Shizigou

The structure of the surface of shizigou N1 reservoir is complicated.Its fault is not developing, reservoir is pretty dense. Heterogeneity is strong. It was expoited since 1994, and now it is in a developing perieod with high water percent contained, 75% comprehensively. Butthe outcome is low, just around 17% now.It has a prosperous future. so it is very necessary to clarify the features of the pool by the the technology of the pool modeling, and its has a guiding meaning for the next developing plan and explioting reservoir better.So far, there is not a sestematical reservoir modeling.the specific distrubing feature of the pool is not clear. This thesis has a deep realistic meaning.The thesis applies the math geology statistics. Analysing the features of the shizigou N1 major reservoir and its developing effect from static state and the dynamic state. And in the end it make a evaluation of reservoir and predict the good developing area and the surrounding of the oil feild.On the static state, using the various kinds of statistics and the single well developing dynamic statistics, on the basics of deviding sedimentary with details and the model of the combination controled,with the distribution of the sedimentary microfacies,the distribuion feature of the fluid-facies,and the explanation result of the single well, I set up the facies-controlled model and Composite-Facies-Controlled.after this, I set up the the facies-controlled-kriging model of the pool with technology of the facies-controlled-kriging modeling.On the dymatic state, using the various kinds of testing statistics and the single well developing dynamic statistics, I analyse the water flooding effect, clarify the features of the water flooding well and the oil well see effective water, as well as the condition of the cross section, exlpain the complexity of the inter sections and the heterogeneity of reservoir。 Combining the outcome of both the dynamic and the static state, I evaluate the heterogeneity of the pool, and recalculate the oil reserves of the studied area. At last, combining the distribution and its inter features of heterogeneity of the pool, with all the index, I evaluate and clarify the oil pool and clear the good developing area, figure out the potential developing area.