... reservoir and borehole fluids can be predicted from the mathematical similarity of poro- and thermoelasticity. A tension-failure condition applies for the prediction of hydraulic fracture initiation in a formation around injection wells. The resulting equations are partially well-known. Similarly...

.... This work addresses three aspects of estimating the BHP from AWS data: (1) estimation of the superficial gas velocity, (2) development of analytical solutions for a single-step BHP calculation, and (3) comparison and interpretation of the predicted BHP's by use of the three correlations for the field...

...Shapour Vossoughi; Gordon W. Bartlett; G. Paul Willhite This paper describes a new technique to predict the parameters that govern the performance of the in-situ combustion process. This prediction is accomplished by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC...

... (the oil-moving component) and a quasi-disulfonate (the sul-fonate-solubilizing component). With this description and a mass-action model for cation exchange between the micelles, clays, and solution, a match between computer model predictions and results of laboratory single-phase flow tests in Berea...

...Muhammad Sahimi; H. Ted Davis; L. E. Scriven The gradient theory of inhomogeneous fluid is used to predict phase splits and compositions, interfacial composition profiles, and interfacial tension (IFT) of liquid-liquid, liquid-vapor, and liquid-liquid-vapor equilibria in binary and ternary mixtures...

...Curtis H. Whitson This work studies the effect of heptanes-plus (C 7+ ) characterization on equation-of-state (EOS) predictions. Both the Peng-Robinson EOS (PREOS) and a modified Redlich-Kwong EOS are used. Several characterization schemes found in the literature are used in the study. Six...

... exist at some point in the displacement. This paper presents a different approach to the problem. If a generalized equation of state (EOS) can match experimental data, then it can be used in a reservoir simulator to calculate the phase equilibria necessary for the prediction of fluid compositions...

.... A power-law mixing rule was generalized by use of the Einstein-type relationship for the viscosities of infinitely dilute solutions. Literature and in-house data were compiled to establish the correlation. The final correlation requires only density and viscosity of the two fluids to predict blending...

...F. J. Fayers; J. D. Matthews This paper examines normalized forms of Stone's two methods for predicting three-phase relative permeabilities. Recommendations are made on selection of the residual oil parameter, S om , in Method I. The methods are tested against selected published three-phase...

... tight gas sand cores, with the following results. The theory explains the Jones and Owens permeability correlation 1 and predicts a modification of it that yields a better fit. The slope of the permeability/stress curve on a log-log plot is predicted to be about 1.0, which agrees with the data...

...Curtis H. Whitson Methods are developed for characterizing the molar distribution (mole fraction/molecular weight relation) and physical properties of petroleum fractions such as heptanes-plus (C 7 +). These methods should enhance equation-of-state (EOS) predictions when experimental data...

...R. S. Seright Results of recent experiments that clarify the effects of mechanical degradation and viscoelastic behavior on the flow of partially hydrolyzed polyacrylamide solutions through porous media are presented. From these results, a simple model that may be used to predict injectivity...

... by a time-stepping procedure in which the flow at each time step is calculated by an integral equation method based on Green's theorem. A few comparisons are made with available solutions and results are presented for a typical design wave in shallow water. The method is capable of predicting forces caused...

... to the system, Na/K/Ca/Mg/Cl/SO 4 / H 2 O, at 25°C. Accurate solubility predictions (usually within 5 % of experimental results) can be made for ionic strengths of 0 to 20 m . Comparison with experimental data indicates that a theory parameterized by binary and ternary data can be used to predict solubilities...

... increases at constant dry density. These results confirm the trends isolated earlier by Kersten, 1 The experimental results are compared with the available empirical relationships. Kersten's relation 1 is observed to predict the thermal conductivity of these soils reasonably. The predictions from Makowski...

... 1 2 1982 Copyright 1982, Society of Petroleum Engineers iteration co 2 distribution coefficient algorithm fluid modeling free energy mole fraction calculation computation prediction extrapolation convergence pvt measurement artificial intelligence fraction equilibrium...

... overload proof testing as required by most API specifications. The purpose of this study was to develop data and evaluate an analytical technique to predict fatigue life of thick-wall, clad and unclad, pressure vessels in the long-and short-cycle fatigue mode. More specifically, data were generated...

...Larry W. Lake; James R. Johnston; George L. Stegemeier This paper presents a performance prediction technique for the response of a large-scale chemical flood. The technique involves the sequential use of a detailed finite difference simulator and a streamtube program. Although approximate...

...-Robinson equation of state. Phase equilibrium data predicted using the Peng-Robinson equation of state, using our interaction coefficients, are compared with experimental data. Generally, the Peng-Robinson equation of state predictions were in close agreement with the experimental data. Effect of feed gas...

...M. P. Leach; W. F. Yellig This paper presents matches, using a fully compositional model, of the performances of seven laboratory CO 2 displacements of a 10-component synthetic oil. The criteria for achieving a match of laboratory performance include (1) comparisons of predicted and experimentally...