... have proposed methods for scale-up at the wellbore or in the vicinity of wells that consider the characteristics of radial flow. Soeriawinata and Kelkar 16 presented an analytical method in which the wellblock was divided into many sectors. The permeability for each layer was calculated...

... testing, but extends their application. The extensions remove the assumption that the flowrate is constant when the prover is being vented. They also provide the ability to calculate reservoir inflow rates at the same time the well is flowing at surface. APPLICATION AND DEFINITIONS Some applications...

... fracture fluid fracture stimulation saturation annual technical meeting undersaturation stimulation water saturation calculation wellbore permeability bvw hydraulic fracturing reservoir mesh sand upstream oil & gas irreducible water saturation injection rate THE PETROLEUM SOCIETY...

... Abstract Calculations of water saturation were carried out for the A Sand of the Bridger Lake Field using techniques based on: capillary pressure measurements, old well logs and old conventional interpretation charts, and cross plot and pattern recognition. It was found...

..., the use of these assumptions completes the system of partial differential equations governing the flow of two fluids in porous media. In actual practice one needs to provide a physically realistic capillary pressure saturation relation in order to make meaningful predictive calculations. Very often...

... Abstract Mechanistic models for multiphase flow calculations can improve our ability to predict pressure drop and holdup in pipes especially in situations that cannot easily be modeled in a laboratory and for which reliable empirical correlations are not available. In this paper, a new...

... describes the methodology for calculating pressure, temperature and fractional vaporization of water profiles along SAGD producers, leading to the development of a computer program RISEWELL to perform such calculations. Sample calculations using the program indicate unstable flow regimes for low fluid flow...

... fluidbehavior for engineering calculations. In this paper four field examples arepresented to illustrate (1) how to use equation of state (EOS) oilcharacterization to check the accuracy of fluid sampling procedures andlaboratory fluid property measurements, and (2) how to use EOS oilcharacterization to check...

... Abstract A new mixing rule for using with the commonly employed cubic equations of state is proposed. It is applied for petroleum mixture vapor-liquid equilibrium computations, and the results are compared to those from the conventional calculations and the experiment data obtained...

... stresses and calculated stresses. In this paper, according to sedimentary rocks having a laminated structures, the formations are considered as transversely isotropic material. The calculating equations of three horizontal principal in-situ stresses and a new formation fracture pressure model...

... loss drilling fluid, the latter fluid should be used. That is, the drilling fluid must be conditioned to have low fluid loss during cementing. Thickness measurements of the filter cake as a function of time allow the calculation of the permeability of the filter cake which reduces the cement slurry's...

... Abstract The paper analyzes some productivity forecast equations and critical production rate calculation of horizontal wells especially Joshi's equation of predicting productivity and Chaperon's equation of critical production rate calculation used in reservoir engineering. This paper...

... Abstract Material balance calculations for gas-condensate reservoirs with reservoir pressures below the dew point pressure require the use of two-phase deviation factor to account for the phase behaviour effects of a gas-condensate fluid. Recently, an empirical correlation for the two-phase...

... capability to the analysis: Step 2 allows a visual picture of the path lines, Step 3 allows for single-phase displacement calculations, and Step 4 forms the basis fot multiphase displacement calculations done in Step 5. 3. REVIEW OF PREVIOUS WORK Stream tubes were first introduced by Higgins...

... through the calculations and show that the resulting error bars vary with the size of the relative pressure drop. Weighted linear regression is used to determine both the best fit values and the standard deviation, which serves as a measure of the statistical confidence limits. An alternative approach...

.... A few simple calculations can be used to illustrate the hydrogen requirements in upgrading. These calculations are not meant to substitute for proper elemental mass balances based on actual yield data but they are an excellent way of putting the chemistry in perspective. The hydrogen addition required...

... result in significant errors. By far the most widely used method for DST analysis is a Horner plot prepared using T p =t 1F +t 2F . In this method, an average flow rate is used in the calculation. Earlougher 1 suggests that plots can be based on T P =t 2F or T p =t 1F +t 2F but is decidedly vague...

... of components, typically 6 to 10. Equilibrium between the hydrocarbon gas and liquid phases is calculated using an EOS such as the Peng-Robinson 5 or Redlich-Kwong. 6 At each time step, the phase equilibria calculations are performed at every grid point infinite difference grid and are coupled...

... method 2 for calculating the static pressure. The calculation of both P gc and P ic requires the information on gas and liquid columns lengths variation in time. The method widely used in industry to track the gas-liquid interface is the acoustic well sounding technique (AWS). The estimation...

... Abstract This paper presents and discuses a complete phase behavior package for determining PVT properties of mixtures of hydrocarbon and non-hydrocarbon species commonly encountered in the Petroleum Industry. All calculations are performed using a generalized Equation Of State, which upon...