Abstract: Taking Wutonggou reservoir in Shanan oilfield as an example,1 method for realization of integrated technology ofreservoir description with numerical simulation is expounded. .Firstly, the 3-D geologic model is developed by using reservoirdescription technology, based on integrated analysis of the mode uncertainties,selecting a suitable geologic model for actualreservoir as input data of numerical simulation. Secondly, the reservoir numerical simulation model is developed by using griddingtechnology integrated with production performance.Finally, the reasonable technical limit for reservoir recovery is proposed byindex prediction and effectiveness evaluation based on the history match and different recoveryprocesses affecting reservoirdevelopment efficiency.Applying the integrated technology of reservoir description with numerical simulation can improve theaccuracy and quality of geologic model during numerical simulation, and provide reliable technical guarantees for the optimizationof development process and the in-depth study of remained oil distribution.

Key words: Junggar basin, reservoir description, 3-D, geologic model, numerical simulation, grid