Water Drive Reservoir Well Test Analysis Of Theoretical And Applied Research

This paper studies theory of well test analysis, theory of productivity analysis and production decline analysis for oil well in water-drive reservoirs by foundamental theory of mechanics of fluid through porous media by studying individual well. Achievements of obtaining is followed:This paper, taking into account the influence of wellbore storage and skin effect on oil-water well, develops for the first time the well test analysis theory of the oil-water well and draws a typical curves of different water content ratio and develops a well test analysis methods. Taking into account the influence of wellbore storage and skin effect on an edge-water oil reservoir, this paper studies the transient well test analysis theory of water-drive oil seepage flow in an edge-water oil reservoir, draws pressure and pressure derivation typical curves of well test analysis under the influence of inner region radium, outer region radium, conduction coefficient ratio, mobility ratio, also analyzes the characteristics of seepage flow, and develops the well test analysis methods. This paper, for the first time, studies the analysis theory of the steady state and transient-state productivity in a oil-water well, obtaining equation of productivity analysis for oil-water well, and draws an inflow performance relation curve of the example well. This paper studies the production decline analysis theory for individual well of oil-water well, oil well of compounding water-drive oil reservoir, and studies effect of water-drive strength on production decline, drawing a typical curve of individual well's productivity decline, and analyzing the elements causing the production decline. Lastly, we analyzed the testing data of oil-water well and oil well of compounding water-drive oil reservoir, theories and analysis methods of well test analysis in this paper are reliable and efficient.