The Geological Modeling Technology Research Of BQ57 Block In Henan Oil Field

The BQ57 block of Henan Xinzhuang oil field is structurally located in the sag part of Biyang, the northen slopes. Reservoir is buried shallow, thickness thin and oil viscosity is high.With many years production,the inspissated pool has got into later stage of steam huff and puff. With the cycle outcome and production factor decreasing, the remaining oil distribution is getting more and more complex.Reservoir geologic modeling technology is the foundation of oilfield development, production and research work, is the final results of reservoir description. In this paper,we choose He Nan oil field of BQ57 blocks H3â…¢1 and H3â…¢3 small layers of heavy oil reservoirs as research target. on the basis of fine correlation of strata,sedimentary microfacies, reservoir heterogeneity and reservoir interpretation, using Petrel 3d geological modeling software,in the method of deterministic modeling,on the control of structure and sedimentary microfaciesto establish precise 3D geological model of the study area.The reserve volume is calculated with Petrel showing the matching accuracy degree is so high that the error is less than 1.78%.The actual crude oil reserves is 506 thousands tons and Model calculation reserves 497 thousands tons It is demonstrated that the geological model could meet content of the research of numerical simulation and remaining oil distribution.I carry out the dynamic test with numerical simulation technique. While the history match is also very precise and the errors are all less than 8.21%. the model can be used for further study in the history matching and distribution of remaining oil.