تعيين نقطه كاركرد چاههاي نفتي با استفاده از مدل سازي حركت سيال در مخزن و چاه

Determination of Operating Point of Oil Wells by Fluid Flow Modeling Through Reservoir and Well

Predicting the relationship between the flow rate and the pressure drop performance in the reservoir is very important for continuous production optimization in the field. An inflow performance relationship (IPR) model is typically used for this task. IPR models allow us to consider various operating conditions; determine the optimum production scheme, and design production equipment and artificial lift systems. IPR modeling (inflow) can be combined with tubing analysis (outflow) using "nodal analysis" techniques which allow us to monitor well flow rate and to choose the proper remedial treatment options to restore optimum well performance. In this work we use Vogel-type correlation for predicting Inflow Performance and Aziz-Govier-Fogarasi two phase flow relationship to predict Outflow Performance. Combination of an Inflow and Outflow (a curve reflecting the tubing performance) curves identifies an operating point of wells. Comparison of predicting results and results obtained from ECLLIPSE-VFPi software indicates a good ability of proposed model.