... barrier correlation coefficient injection rate nonparametric statistics flow in porous media coefficient compressibility ABSTRACT This paper addresses the use of the Spearman rank coefficient, a nonparametric statistics, to estimate lateral autocorrelation and permeability trends. This approach...

... and compressibility of the reservoir formation are constant or a function of pore pressure. This assumption has limitations when applied to an oil sands reservoir because of the unconsolidated deformable nature of oil sands. Three injection tests were conducted in an oil sands reservoir at a depth of about 500 m...

... recovery history match cold production oil viscosity tmf heavy oil reservoir reservoir simulation compressibility reservoir pressure permeability sensitivity flow in porous media mechanism gas relative permeability THE PETROLEUM SOCIETY PAPER 98-44 Modeling Cold Production for Heavy Oil...

... experimental observations. The model isverified by marching our calculated results with the experimental data. The results calculated from this model show how the foamyoil properties vary with pressure and time. The volumes and compressibilities of foamy oil increase to their maximum values before...

... the reservoir pressure falls below the thermodynamic equilibrium bubble point pressure, i.e., they form a foam. Finite time is required for the entrained gas to disengage and form a continuous flowing gas phase. The presence of entrained gas increases the effective compressibility of the oil phase and prevents...

...~ibiliLY in psi-I. BOLh gas vi~cosity and system compre~sibility are calculated SL initial conditlOns. System compressibility is given by: , , ~here c f is cleat volume compres5ibil~t~"Sw and c~ are the water saturatlon and compress1blllLY, respectively, Sand c are the gas saturation and compressibility...

... with measurements of pore space compressibility and evaluation of the gelling behavior of cross- linked polymers within a porous medium. Examples of the data obtained in each application are presented, and the limitations of the technique are discussed. INTRODUCTION The pulse decay technique was developed I...

... of the pay section. d. Fluid flow rate is constant. e. The fluid is single phase, of constant viscosity and of small and constant compressibility. f. Gravity forces are negligible. g. Wellbore pressure is stable prior to the rate change. In the analysis of the tight gas wells pre- sented here, the real gas...

... society integration equation method approximate condition production control bottom-hole pressure gas column derivation assumption compressibility drillstem/well testing gas well calculate bottom-hole pressure reservoir surveillance CALCULATION OF BOTTOM-HOLE PRESSURES IN SINGLE PHASE GAS...