Study On Deep Exploration Of Fractured Block 157 In Ao Nan Oilfield Of SongLiao Basin

In view of Aonan oilfield Ao 157 fractured reservoir has heterogeneity, and some well points are facing the problems of sudden water blooding caused by unevenly monolayer breakthrough, this thesis sets up mathematical model of calculating injection-production ratio which fits fractured hyposmtic oil deposit and confirms reasonable injection-production ratio by means of numerical simulation. Through making full use of three-dimensional seismic data and well logging data of continuous vertical high resolution advantage, the precise model of the three-dimensional structure is established combining with fine geology research results by Petrel modeling software. The block sedimentary microfacies model are established by the deterministic modeling method, basing on it, the sequential Gauss simulation method is used to establish phased 3D reservoir model by using reservoir parameters of logging interpretation in ordering to build completely geological model which provides three-dimensional network for numerical simulation and fluid flow simulation. The software of Eclipse is used to carry out numerical simulation which uses a single hole single permeability model, it can carry out block dynamic historical fine fitting and quantify single well remaining oil distribution in single layer. Combining dynamic and static data, it determine the block infill wells and injection production system adjustment through the multi scheme simulation optimization index comparison which can guide fine adjustment and single well measure, a complete set of fine potential method is formed which fits the fractured low permeability oilfield.