Reservoir Evaluation Of108、28-44Block In LouFangPingOil Field

Upper Triassic YanChang of Ordos Basin is the most important oil-bearing strata in the basin, LouFangPing oil field head of reservoir mainly to the low permeability, low permeability reservoirs.It is mainly belong to lithologic reservoirs with weak tectonic activity. In general, the efficiency of oil field development is low.In order to find favorable reservoir to achieve the integration of exploration and development, provide a theoretical basis for the efficient and rational development of the Reservoir LouFangPing oil field. It is necessary to proceed comprehensive evaluation of LouFangPing oil f ield Reservoir.Through applicating modern reservoir characterization theory and methods, focus from the stratigraphic division and contrast, construct the distribution characteristics, sedimentary microfacies and sand body distribution characteristics, the reservoir rock characteristics, reservoir heterogeneity characteristics, the pore throat types and physical features proceeding in-depth and systematic research.It was imported that the reservoir construction is the west-dipping monocline of east to the west as a whole, the structure framework present nose uplift west distribution pattern, the study area mainly developed delta plain facies. The Chang6belongs to delta front subfacies, are mainly distributary channel, mouth bar, channel flank and interdistributary bay microfacies, Chang8belongs to the shallow lake subfacies, sand dam, and the development of lake mud microfacies.Count and analyze the Cast thin section microscopy, the reservoir lithology of DongHan oil field is Order to arkose the main, pore type is mainly intergranular pores, the clay mineral is mainly kaolinite and chlorite; The layer and flat heterogeneity of the reservoir is powerful.After the demonstration, it is recommended to use two sets of layer system, a set of well pattern, giving priority to the development of6layer system, proper deployment of some well further evaluation of length8, to be assessed after the development of8layers; the rhombus inverted nine spot injection pattern well, using synchronous or advance water injection development.