Experimental Study on Start-up Pressure Gradient in Low Permeability Reservoirs
At the beginning of the 20th century,low permeability reservoirs were successively put into development,and in the process of evaluating reservoir tightness and seepage law,it is necessary to understand the starting pressure gradient of fluid seepage in porous media.The authors used a combination of"differential pressure-flow method"and"pressure equilibrium method"to conduct experiments on core samples,and the experimental results of the proposed starting pressure gradient and the minimum starting pressure gradient were obtained at the same time.Compared with the traditional method,this method has the characteristics of simple experimental conditions,easy control of the experimental process,and easy observation of experimental results,which can be used as a new method for pressure gradient testing.
low permeability reservoirspercolationstart the pressure gradientdifferential pressure-flow methodpressure equalization method
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维普
