The Experts below are selected from a list of 612 Experts worldwide ranked by ideXlab platform
A.i. Brusilovsky - One of the best experts on this subject based on the ideXlab platform.
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Mathematical modeling of Gas-Condensate mixture PVT-properties including presence of brine in reservoir
Fluid Phase Equilibria, 2016Co-Authors: T.s. Yushchenko, A.i. BrusilovskyAbstract:Abstract The article is considering a recent mathematical method of phase equilibria calculation of natural Gas Condensate Systems taking into account the presence of brine in reservoir media. This method is based on a three-parameter Peng – Robinson (PR) cubic equation of state (EoS) and Huron–Vidal (HV) mixing rule. The applicability of the PVT-modeling method is illustrated by comparison of the calculation results and experimental data by the examples of binary mixtures of water with methane, ethane, propane, n-butane, nitrogen, carbon dioxide and hydrogen sulfide. The new values of HV mixing rule parameters are proposed, allowing to improve the accuracy of phase equilibria calculation for binary mixtures of natural Gas Condensate Systems component and water in a wide range of pressure and temperature. A comparison of the results of engineering formulas (Bukacek method) based and a mathematical method (EoS and HV mixing rule) based calculations of hydrocarbon (HC) mixture water content was made. The effect of the residual water presence on the Gas Condensate System phase behavior at reservoir development is evaluated on the base of constant volume depletion (CVD) test mathematical modeling with the application of the discussed method of phase equilibria calculation. Examples of residual water presence effect on the PVT-properties of natural Gas Condensate Systems distinguished by initial reservoir conditions, potential content of stable Condensate (C 5+ ) and mixture composition are considered.
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Mathematical modeling of Gas-Condensate mixture PVT-properties including presence of brine in reservoir
Fluid Phase Equilibria, 2016Co-Authors: T.s. Yushchenko, A.i. BrusilovskyAbstract:Abstract The article is considering a recent mathematical method of phase equilibria calculation of natural Gas Condensate Systems taking into account the presence of brine in reservoir media. This method is based on a three-parameter Peng – Robinson (PR) cubic equation of state (EoS) and Huron–Vidal (HV) mixing rule. The applicability of the PVT-modeling method is illustrated by comparison of the calculation results and experimental data by the examples of binary mixtures of water with methane, ethane, propane, n-butane, nitrogen, carbon dioxide and hydrogen sulfide. The new values of HV mixing rule parameters are proposed, allowing to improve the accuracy of phase equilibria calculation for binary mixtures of natural Gas Condensate Systems component and water in a wide range of pressure and temperature. A comparison of the results of engineering formulas (Bukacek method) based and a mathematical method (EoS and HV mixing rule) based calculations of hydrocarbon (HC) mixture water content was made. The effect of the residual water presence on the Gas Condensate System phase behavior at reservoir development is evaluated on the base of constant volume depletion (CVD) test mathematical modeling with the application of the discussed method of phase equilibria calculation. Examples of residual water presence effect on the PVT-properties of natural Gas Condensate Systems distinguished by initial reservoir conditions, potential content of stable Condensate (C 5+ ) and mixture composition are considered.
T.s. Yushchenko - One of the best experts on this subject based on the ideXlab platform.
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Mathematical modeling of Gas-Condensate mixture PVT-properties including presence of brine in reservoir
Fluid Phase Equilibria, 2016Co-Authors: T.s. Yushchenko, A.i. BrusilovskyAbstract:Abstract The article is considering a recent mathematical method of phase equilibria calculation of natural Gas Condensate Systems taking into account the presence of brine in reservoir media. This method is based on a three-parameter Peng – Robinson (PR) cubic equation of state (EoS) and Huron–Vidal (HV) mixing rule. The applicability of the PVT-modeling method is illustrated by comparison of the calculation results and experimental data by the examples of binary mixtures of water with methane, ethane, propane, n-butane, nitrogen, carbon dioxide and hydrogen sulfide. The new values of HV mixing rule parameters are proposed, allowing to improve the accuracy of phase equilibria calculation for binary mixtures of natural Gas Condensate Systems component and water in a wide range of pressure and temperature. A comparison of the results of engineering formulas (Bukacek method) based and a mathematical method (EoS and HV mixing rule) based calculations of hydrocarbon (HC) mixture water content was made. The effect of the residual water presence on the Gas Condensate System phase behavior at reservoir development is evaluated on the base of constant volume depletion (CVD) test mathematical modeling with the application of the discussed method of phase equilibria calculation. Examples of residual water presence effect on the PVT-properties of natural Gas Condensate Systems distinguished by initial reservoir conditions, potential content of stable Condensate (C 5+ ) and mixture composition are considered.
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Mathematical modeling of Gas-Condensate mixture PVT-properties including presence of brine in reservoir
Fluid Phase Equilibria, 2016Co-Authors: T.s. Yushchenko, A.i. BrusilovskyAbstract:Abstract The article is considering a recent mathematical method of phase equilibria calculation of natural Gas Condensate Systems taking into account the presence of brine in reservoir media. This method is based on a three-parameter Peng – Robinson (PR) cubic equation of state (EoS) and Huron–Vidal (HV) mixing rule. The applicability of the PVT-modeling method is illustrated by comparison of the calculation results and experimental data by the examples of binary mixtures of water with methane, ethane, propane, n-butane, nitrogen, carbon dioxide and hydrogen sulfide. The new values of HV mixing rule parameters are proposed, allowing to improve the accuracy of phase equilibria calculation for binary mixtures of natural Gas Condensate Systems component and water in a wide range of pressure and temperature. A comparison of the results of engineering formulas (Bukacek method) based and a mathematical method (EoS and HV mixing rule) based calculations of hydrocarbon (HC) mixture water content was made. The effect of the residual water presence on the Gas Condensate System phase behavior at reservoir development is evaluated on the base of constant volume depletion (CVD) test mathematical modeling with the application of the discussed method of phase equilibria calculation. Examples of residual water presence effect on the PVT-properties of natural Gas Condensate Systems distinguished by initial reservoir conditions, potential content of stable Condensate (C 5+ ) and mixture composition are considered.
Zidun Wang - One of the best experts on this subject based on the ideXlab platform.
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Fluid behavior of Gas Condensate System with water vapor
Fluid Phase Equilibria, 2017Co-Authors: Zhouhua Wang, Hanmin Tu, Tingyi Sang, Fanhua Zeng, Zidun WangAbstract:Abstract For most Gas Condensate reservoirs, a high water cut and near-wellbore retrograde Condensate pollution are the main problems encountered by engineers. Thus, a good understanding of the influence of water vapor and the complex phenomenon of a near wellbore region on the phase behavior of Gas Condensate is critical to forecast the performance of reservoir fluids and guide the exploitation of Gas Condensate reservoirs. In the present work, constant composition expansion (CCE) and constant volume depletion (CVD) measurements are performed to determine the phase behavior of Gas Condensate samples with and without water vapor. Our experimental results demonstrate that water vapor not only increases the dew point pressure, but it also influences other Gas-related properties. Furthermore, several equations are applied to predict the solubilities and Gas-related properties. As the predictions are compared to each other, it is obvious that the cubic-plus-association (CPA) equation of state (EOS) performs very well in all properties with a test fitting interaction parameter. A good agreement between the experimental data and predictions is observed.
Anders Solheim - One of the best experts on this subject based on the ideXlab platform.
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Description of an Interface Light-Scattering Spectrometer with a Cylindrical High-Pressure Scattering Cell Including Performance Test on a Model Gas-Condensate System
Journal of Colloid and Interface Science, 1994Co-Authors: B.j.a. Bjørkvik, G. Strømme, Torbjorn Sikkeland, K.a. Strand, Dag Waaler, P.k. Munkerud, Idar Akervoll, Anders SolheimAbstract:Abstract A versatile interface light-scattering (ILS) spectrometer for the detection of light scattered by thermally excited capillary waves at fluid interfaces has been developed. The instrument permits observation over a wide range of capillary mode wave numbers, using scattering cells with cylindrical geometry. Owing to the cylindrical geometry, it is possible with this spectrometer to perform combined interface and bulk light scattering experiments using the same cell. The performance of the experimental set-up, including a sapphire-tube high-pressure piston cell, has been assessed through measurement of the interfacial tension in a System of coexistent, mutually saturated phases of water and 2-butanol. The results obtained at ambient pressure were shown to be in excellent agreement with those previously obtained with the use of an experimental set-up including a planar optical geometry scattering cell. The light scattering measurements demonstrate one particularly attractive feature of this method: Not only is it a nonperturbative and absolute method for determining interfacial tension, but it also provides a way to check the reliability of the results. Consistency of results over a wide range of capillary mode wave numbers provides assurance that no biases exist either in the experimental System or in the data analysis. A preliminary study of a six-component hydrocarbon model Gas-Condensate System, which in certain respects resembles real Gas-Condensate Systems, demonstrates that reliable information can be obtained on the interfacial tension and the sum of the Gas and liquid shear viscosities. The prospects of using the ILS method for more Systematic studies of such Systems appear very good.
Zhouhua Wang - One of the best experts on this subject based on the ideXlab platform.
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Fluid behavior of Gas Condensate System with water vapor
Fluid Phase Equilibria, 2017Co-Authors: Zhouhua Wang, Hanmin Tu, Tingyi Sang, Fanhua Zeng, Zidun WangAbstract:Abstract For most Gas Condensate reservoirs, a high water cut and near-wellbore retrograde Condensate pollution are the main problems encountered by engineers. Thus, a good understanding of the influence of water vapor and the complex phenomenon of a near wellbore region on the phase behavior of Gas Condensate is critical to forecast the performance of reservoir fluids and guide the exploitation of Gas Condensate reservoirs. In the present work, constant composition expansion (CCE) and constant volume depletion (CVD) measurements are performed to determine the phase behavior of Gas Condensate samples with and without water vapor. Our experimental results demonstrate that water vapor not only increases the dew point pressure, but it also influences other Gas-related properties. Furthermore, several equations are applied to predict the solubilities and Gas-related properties. As the predictions are compared to each other, it is obvious that the cubic-plus-association (CPA) equation of state (EOS) performs very well in all properties with a test fitting interaction parameter. A good agreement between the experimental data and predictions is observed.
