Numerical Simulation Study On Increasing Oil And Increasing Effect Of ICD Completion In Horizontal Well

The bottom water coning is the most prone and difficult problem when exploiting the bottom water reservoir by the horizontal well. The bottom water coning restricted the efficient development of bottom water reservoir by the horizontal well so that it is a urgent problem to be solved. ICD is a effective method to migrate this problem and achieved a good result.This thesis we maily have discussed the application of ICD in the bottom water reservoir. ICD is a new flow control device,its technical principle is that through balancing the flow in the horizontal wellbore to provides an uniformity inflow profile to control water or gas coning and increae the production time of horizontal well without water or gas and finally improve the recovery of the horizontal well.In this paper we use the simulation software and use the multisegment well numerical simulation technology to simulate the ICD,then we study the influence factors about the control water effect and finally we carry out the productivity evaluation for the actual reservoir.Through study the the influence factors about the control water effect,such as the horizontal section length, the permeability ratio between high permeability section and low permeability section, the length of control section of ICD and the flow rate of control section of ICD, we can confirm the best installation lacation of ICD, the best length of control section and the best flow rate of control section of ICD.Finally through the productivity evaluation for the actual reservoir which horizontal well exploiting with spiral ICD and nozzle ICD,we select the best ICD,nozzle ICD.The effect of nozzle ICD is better than the effect of spiral ICD. This research result has important instruction significance for the application of ICD in the field.