The Fine Description Of Water Flow Predominant Channel Reservoir In West17-19Block Fuyu Oil Field

With30years of development, the major problem in Fuyu oil field is that production fluid and absorbent was non-uniform in longitudinal upper layer, the obvious contradiction was between the layers, water floods was seriously in east-west plane, north-south was not effective, individual wells accumulated water injection volume was large, surrounded wells was not effective, the fluid motion law in the underground was complex. These shows that, there is the Water Flow Predominant Channel (or pore) the layer and between layers, or in the vertical and the plane in reservoir of Fuyu oil layer.The Water Flow Predominant Channel is the injected water flow local advantage path formed by the local geology and development.Fuyu Oilfield are formed in the vertical and flat Water Flow Predominant Channel, they seriously affect the development as well as improved. Find out the Water Flow Predominant Channel distribution law, a large number of invalid is on the inhibition of the injected water recovery to improve the storage rate, improve the effect of oilfield development of great significance. So this paper studies the the Fuyu West17-19blocks①fluvial reservoir Water Flow Predominant Channel identification method and criterion;②establish the flat distribution pattern of the Water Flow Predominant Channel;③proposed suppression Water Flow Predominant Channel formation and improve oil displacement efficiency of technical countermeasures.To the Fuyu West17-19Fuyu oil layer development block for the analysis, the use of dynamic and static data Water Flow Predominant Channel geological conditions, the dynamic performance characteristics, and inhibition of the Water Flow Predominant Channel or expand water injection technology policy of the dominant channel. Paper, the idea is:First, the static data analysis of the reservoir in the Water Flow Predominant Channel of the geological conditions, and predict the reservoir there may be the Water Flow Predominant Channel distribution; Second, the analysis of fluid production and injection profile and the flooding situation, such as dynamic data, determine the flow advantage the dynamic response characteristics of the channel, further validation of certain parts of the reservoir units have been formed by the Water Flow Predominant Channel and the specific location of Water Flow Predominant Channel mode, using the water shut off for the next step, profile, stratified injection and dynamic deployment improve the injected wave and the volume factor to improve the basis.