... Abstract Even though it has long been recognized that pressure drop along a horizontal wellbore cannot be neglected, little has been done to estimate the pressure drop with any rigor. The existing models are derived jPom pipeflow equations, neglecting, therefore, the presence of radial fluid...

... Abstract Based on principle of mass conservation, this paper sets up a new mathematical model of gas-water two-phase underground percolation, and the model includes the influences of formation damage and non-darcy eflect. Theoretically, we first obtain the production rate equations of gas...

.... In this paper, twodimensional viscous Jngering in porous media is considering, both numerically and experimentally. The Barakat and Clark ]J Heat Transfer ASME, Nov., 19661 scheme is used to solve the governing equation. This is the first study reported in solving viscous lingering using this method...

... upstream oil & gas oil reservoir experiment complex reservoir kinetic ofbubble growth viscosity reservoir characterization oil sand diffusion coefficient equation heavy oil ofbubble growth gas bubble solution gas drive bitumen bubble growth diffusional force solution gas drive involve...

... analyses, which can effectively reflect complexities in subsurface systems. pollutant transport petroleum product multiphase multicomponent modeling approach risk assessment risk management assessment leakage guideline subsurface contamination pollutant equation media modeling...

... in fractured reservoirs has been studied for over forty years. Aronofsky et. al. I used an exponential type of formula to correlate oil recovery data from fractured reservoirs. The equation used is as follows: Equation (1) (Available in full paper) In the figures of the Aronofsky et al. 1 paper, one can see...

... for pressures higher than atmospheric pressure. The Peng-Robinson (1976) ISI equation of state was used to correlate the data for the solubility of CO 2 in the polar solvents. The Henry's constants are then derived using the Kritchevsky-Kasarnovsky (6) or the Kritchevsky- Illenskaya equation m. The results...

... diameter of elbow is in the range of 1.3 to 1.5, the discharge coefficient is within ±3 ∼4% of that predicted by Lansford's approximate equation. If higher accuracy is required, the theoretical value of the discharge coefficient predicted from Lansford's equation should be adjusted using Spink's correction...

... Abstract Mass transfer between fractures and matrix blocks is crucial to oil recovery by waterflooding in fractured reservoirs Mattax and Kyre (1962) proposed a scaling equation for rate of oil recovery by spontaneous imbibitions. Results were presented as oil recover vs dimensionless time...

... Abstract A new equation of sate-based technique for predicting minimum miscibility pressures for CO 2 cured old systems has been developed. To verify the technique, a total of 33 slim tube displacement tests were conducted. Reservoir fluids from four different pools were included...

... Abstract A new equation of sate-based technique for predicting minimum miscibilitypressures for CO 2 cured old systems has been developed. To verifythe technique, a total of 33 slim tube displacement tests were conducted.Reservoir fluids from four different pools were included in the testing...

... the flow of fluid particles, driven by fluid flowpotential, in a porous medium and movement of ions, driven by electricalpotential, in an electrolyte. A simple and low-cost experimental setup permitsthe testing of various theoretical equations and the results arepresented. Introduction In many cases...

... than sucked out. Equations relating the critical flow rate to maintain stability of the interface and the recovery are developed in the paper and compared to experimental data from vertical Hele-Shaw models. The study examines the effect of production rate, well spacing, initial height...

... Abstract A lattice-Bollzmann automaton (LBA) is an efficient and accurate alternative to traditional methods in computational fluid dynamics such as finite differences or finite elements. In the lattice---Boltzmann approach, the non-equilibrium Bollzmann- transport equation is solved in terms...

... on the particles by the fluid stream and the transfer of momentum from one phase to another. Soo [1] reported equations formulated by Newton and Stokes to determine the magnitude of the drag force exerted by the fluid phase on a solid sphere at different fluid flow regimes fluid phase equation deposition...

... reduction of the interfacial tension and/or a change in matrix wettability. The end result is the mobilization of residual oil trapped in the fine pores of the reservoir sand. precision diluent equation wide variety pipeline oil resull viscosity velocity monitor diluent concentration...

... rate of the well is not affected by wellbore hydraulics. It is also shown that the heterogeneities give rise to different wellbore pressure drops for different flow directions. A novel multi-level technique where the coarse-grid. fine-grid and wellbore equations are solved separately was developed...

... countercurrent air phase and liquid dispersion. Equations are presented representing an accurate mechanistic model of the biodegradation behaviour of the column for phenol, cresol and actual refinery wastewater. The column established a 200 micron thick slime layer of bacteria. Biodegradation of the phenolic...

... in a physical simulation of a steam-additivedrive process will be discussed. A numerical reservoir simulator is used tocapture the dispersion mechanism of dead-end pore volume. tracer dispersion equation chemical tracer water phase technical meeting inert tracer injection steam-additive...

...) described a general reaction mechanism for flash hydropyrolysis. They suggested that the initiation step is the same as in thermal cracking. Free radicals can be formed from homolytic cloavage of a C-C bond. Chemical equation (1) (Available in full paper) The explanation for the react ion rates...