Research on Production Profile Test and Control Technology Based on High Water-cut Oilfield
The problem of high water cut is common in the later stage of horizontal well production in Bohai oilfield.In order to control the premature water occurrence of oil wells,this paper adopts the combination of liquid production profile test and flow control,and installs a liquid production profile test section and an inflow control device in the completion string to monitor and control the flow rate of water production in the later stage of oil well production.Through the numerical simulation method of computational fluid dynamics,the effect and mechanism of AICD control device on the throttling of formation water and crude oil were studied.The results show that the AICD control device has a strong throttling effect on the formation water,the overflow resistance is large,the formation production liquid is reduced,and the throttling pressure drop on the crude oil is small,and the crude oil is easy to enter the production string,which improves the flow rate of crude oil.In the field application of a well,the water cut showed a continuous downward trend,and the effect of water control and oil increase was obvious.
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