Variations of fluid properties in the PFW oilfield

摘要

The reservoir of S_4z in PFW oilfield, structure, microstructure, depth and fault affected fluid properties and distribution law. The high and low density and viscosity of crud oil are corresponding with low and high total salinity of formation water in plane. There is high heterogeneous of fluid properties in vertical and four types of fluid which are gas, light oil, heavy oil and water, it has general uniform interface between two contrast fluid. At the same time, dynamic variation of fluid properties was gotten during water flooding in saturated oil reservoir which included gas cap through researching. The law of distribution and variation can provide scientific basis for formulating and adjusting development plan and for numerical simulation.