Geologic Model And EOR Study In A Certain Oilfield In Bohai

A certain oil field in Bohai developed by well injection.Some wells has already appear water–broken .Considering about the problems in the oil field.This research is about the development adjust necessity. According to 3-D seismic re-acquisition, processing and interpretation results and reservoir inversion results, and combined with dynamic production performance, to furtherize reservoir geological mode stud and to carry out oil group, substrata and rhythm correlation study. Using method of cycle contrast to establish fine reservoir stratigraphic framework. Through 3-D seismic data, fine formation correlation and dynamic development data to confirm micro-structure, and to study the characteristics of micro-structure by varieties of single sandbody. Through the reservoir sedimentation theory to describe sedimentary distribution of reservoir sandbodies, taking micro-facies as units to analyze good reservoir zones, and using different methods to classify the reservoir flow units and to illustrate the movement characteristics of oil and water.According to the earthquake,well logging,geologic and reservoir method,the three-dimensional geologic model was built.In the basic of geological model, the adjust project was preferred.This research can not only improve EOR in the certain oil field,but also direct the development in the same other oil fields.