Technical study on the fine characterization of remaining oil for fault block reservoirs—an example from Lijin oilfield

Based on the establishment of fine geologic model for the characteristics of fault block pools,an integrated numeri- cal simulation of mega-node scale is performed.The inter- face software preprocessing for numerical simulation was programmed to realize the fidelity transform from the geolog- ic model into the numerical simulation model.A quantified criterion of history matching is established and the constraint mechanism of parameter adjustment is created to obtain the highly accurate history matching.The post-processing software of pool numeral simulation is programmed to fur- ther deepen and refine the quantitative calculation and statis- tical analysis of remaining oil.According to the established criterion for potential area,the orientation and the fine char- acterization of the potential area was performed.A good effect is acquired after the application of the method on Lijin oilfield.