Improvement of framework models established with Boolean simulation

The models for sand body framework in reservoirs established using traditional Boolean method has some shortcomings.The simulation results of connectiveness of sand bodies were better than the real status,because the entirely stochastic random function was applied to generate the central point of every sand body in the traditional Boolean method,without consideration of the important control of previously deposited sand bodies over the latterly deposited subsequent sand bodies during the deposition.A simple method,the improved Boolean method,is presented here to solve this problem.The basic principle of the improved method is to generate the central point of the new geological object firstly at the location there has not filled the geological objects.The implement steps of this method in the case of two dimensionsand an application case in the Xinjiang Oil Field were introduced.The simulation results obtained respectively from the improved Boolean Method and the traditional Boolean Method were compared.It is indicated that the improved Boolean Method can get more realistic simulation result.