Reservoir Geological Modeling On Hei Ⅱ Oil Reservoir,Gu 1 Zone In Puxi Oilfield

At present, the exploration and development of Puxi oilfield has entered the later with the problem of unstable development of reservoir, sand bodies scattered distribution, complex oil-water distribution and majority in lithology resorvoir, etc,which leads the obvious contradiction between planes, fast production decline and relatively large mining difficulty. In this paper, in view of the above problem, by the high resolution sequence stratigraphy and sedimentology theory as the instruction, the establishment of a uniform fine high resolution sequence stratigraphic framework and the division into 10 depositional time unit of the Heidimiao oil reservoir,Puxi olifiled is carred out. Carring out the purpose layers of sedimentary subfacies types in the study area through the cores in cored Wells and analysis of log data, we find that the HⅡ oil reservoir in the study area are mainly delta front deposition, the main development of the underwater distributary channel, mouth bar, far sand bar, sheet sand, distributary between mud and some several kinds of microfacies types while making 10 sedimentary units of sedimentary microfacies exhibition layout. At the same time, the study to carry out the fluid properties and oil-water distribution of single sand body, single sand layer physical parameters interpretation study is also going.On the basis of the study, application of Petrel geological modeling software to complete the tectonic modeling work of 16 fault unit, 10 sedimentary for Hei Ⅱ oil resorvoir,Gu 1 zone,Puxi oilfield and utilization by the "phased sequential indicator simulation" method to establish the black temple reservoir sedimentary facies model of 10 sedimentary units in Gu 1 zone is also on the way. Line at the same time, under the guidance of the stochastic modeling theory and the theory of variational function, the distribution work of porosity, permeability, saturation reservoir physical property parameters of stochastic simulation to space grid, the reservoir property model is established in this paper. Based on its established fine attribute model, the calculation to the geological reserves. We end up with 3d reservoir geological model, in line with the previous geological understanding, not only accurately depicting the underground reservoir heterogeneity, revealing the distribution law of oil and gas, also being used for the numerical simulation software to provide accurate three-dimensional geological body, For the oil field exploration and development personnel accurate calculation of remaining oil distribution and the development of reasonable oil and gas field plan provides certain guiding role.