Reservoir Heterogeneity And Modeling Study On The First Member Of The Kongdian Formation Of Ⅴ In The Zaoyuan Oil Field

After over-year exploitation, most parts of old oilfield have already at the development of intermediary later stage in East China. For exploiting reservoir in scientifically and effectively, shifting the latent capacity of remaining oil, we have to proceed fine reservoir description. In it reservoir heterogeneity is one of the most important factors in affecting of remaining oil distribution, and also is a focal of reservoir geologic research at present. Concrete speaking, first we should refer to the secondary treating of seismic data, develop stratigraphic division and comparison to ascertain the fault deploying relationship; Then study sediment microfacies, analysing different origin sand body’s distribution feature in interspace. And then focus on the reservoir physical feature and heterogeneity, which can help us awareness the distribution history of profit. By means of establishing triaxial reservoir geologic model, characterize reservoir physical feature and heterogeneity in quantity.Zaoyuan Oilfield Kong-1 formation is at the stage of high water-cut, which has been for 20 years with flood development and adjustment tap the latent power time again. There are many problems such as layer series of development confusedly, abandoned wells too much, remaining oil distribution unclearly and so on, which of course lead to have difficulty in manufacturing and uneffectiveness. Paper based on geology, seismic, logging and production performance data, chiefly study on reservoir heterogeneity of Kong-1 formation of V, with the help of stratigraphic division and comparison, structural feature and sedimentation microfacies analyzing. And taking Zao 1281 Block of 60 wells for example, use phase control randomly model building. Establish sand porosity and permeability models. Under above task, make a scrutiny into the reservoir heterogeneity and sand body pattern feature on the main layer Kong-1 formation of V, to provide base geology supporting for next adjustment and exploitation of oilfield.