Development of System and Method for Serial Measurement of Phase Permeability of Sandstone Core Samples During Filtering of Water, Oil and Gas

摘要

In this work a novel X-ray method for evaluation of intermediate water and oil saturation in a core sample is presented. Proposed method is considered X-Ray attenuation in the core saturated by doped wateroil and doped oilkeroseneesidual water. Three-phase relative permeabilities can be calculated from two-phase wateroil and gasoil permeability tests with a help of proposed method. The suggested procedure allows decreasing the time of execution the experiment. The reached results permit to carry out serial measurements of relative phase permeability by steady-state filtration of wateroilgas in stratal conditions. Tomographic images recovering of water and oil spatial distribution in core samples was used. This image allows classifying core samples, comparing them. It permits to evolve more correct computer simulation model of reservoir flows.