An Improved P-Normal Transformation Approach in Reservoir Upscaling

In reservoir upscaling, in order to avoid small value dominance, p-normal the original data is necessary. The conventional type-curve approach to estimating p for p-normal transformation needs some manual work to type the curves. Also, its algorithm shows some considerable bias error. In this paper, the p-normal transformation techniques will be explored mainly in a reservoir engineer's point of view. Thereby, an improved p-normal transformation approach is presented. Its algorithm specially suits the transformation of permeability and porosity data fields. Furthermore, it could automatically be conducted together with the upscaling program. Test examples show that the improved method is more convenient to use than the type-curve approach in reservoir upscaling.