Interfacial Tension of (CO2 + CH4) + Water from 298 K to 373 K and Pressures up to 30 MPa

Ren, Quan-Yuan; Chen, Guangjin; Yan, Wei; Guo, Tian‐Min

doi:10.1021/je990301s

Cited by 157 publications

(123 citation statements)

References 15 publications

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“…In an attempt to compare these experimental profiles with available literature data for CH 4 /pure water IFT, a very satisfactory agreement can be observed [15][16][17][18]. Fig.…”

Section: Ch 4 /Brine Systemsupporting

confidence: 65%

Effect of Hydrocarbon and Non‐Hydrocarbon Gas Injection on the Interfacial Tension of a Gas Condensate System

Al-Abri

Amin

2010

Chem Eng & Technol

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Experimental results of interfacial tension (IFT) of condensate-brine-gas systems over a pressure range of 1000 to 8000 psi and a temperature range of 95 to 160°C are presented. High-pressure high-temperature video-enhanced pendent drop tensiometry was established to capture drop images for IFT measurements at various reservoir thermodynamic conditions. This paper serves as a building block to the essential practical understanding of the surface effects associated with improved condensate recovery from gas condensate reservoirs by gas injection. This understanding is critical for ascertaining gas injectivity, displacement and trapping in the pore spaces, and potential geological storage of CO 2 .

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“…In an attempt to compare these experimental profiles with available literature data for CH 4 /pure water IFT, a very satisfactory agreement can be observed [15][16][17][18]. Fig.…”

Section: Ch 4 /Brine Systemsupporting

confidence: 65%

Effect of Hydrocarbon and Non‐Hydrocarbon Gas Injection on the Interfacial Tension of a Gas Condensate System

Al-Abri

Amin

2010

Chem Eng & Technol

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“…Bachu & Bennion (2008a) observed a set of k rg0 values for the same sandstone core, ranging from 0.298 to 0.526, for CO 2 -brine mixtures, with IFT ranging from 56.2 to 19.8 mN m −1 , respectively (IFT was varied by increasing the fluid pressure from 1.378 to 20 MPa). At 40 • C and 1 MPa of pressure, the IFT for CO 2 -water and CH 4 -water mixtures are around 90.95 mN m −1 (Bachu & Bennion 2008b) and 69.06 mN m −1 (Ren et al 2000), respectively. Therefore, the relative permeabilities for CO 2 -brine and CH 4 -brine mixtures can be expected to be quite different.…”

Section: Mass Conservationmentioning

confidence: 97%

“…Although the CO 2 and CH 4 are miscible (Ren et al 2000), for simplicity, dispersion and mixing of the two components are ignored and a sharp interface is assumed, located at an elevation of h c [L] above the base of the reservoir (similar to Nordbotten & Celia 2006). At 35 • C, for pressures ranging between 0.7 and 15 MPa, the densities of CO 2 and CH 4 are in the ranges 12-815 kg m −3 and 4-111 kg m −3 , respectively (Lemmon, McLinden & Friend 2013).…”

Section: The Mathematical Modelmentioning

confidence: 99%

Heat transport and pressure buildup during carbon dioxide injection into depleted gas reservoirs

2014

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In this article, a two-layer vertical equilibrium model for the injection of carbon dioxide into a low-pressure porous reservoir containing methane and water is developed. The dependent variables solved for include pressure, temperature and CO 2 -CH 4 interface height. In contrast to previous two-layer vertical equilibrium models in this context, the compressibility of all material components is fully accounted for. Non-Darcy effects are also considered using the Forchheimer equation. The results show that, for a given injection scenario, as the initial pressure in the reservoir decreases, both the pressure buildup and temperature change increase. A comparison was conducted between a fully coupled non-isothermal numerical model and a simplified model where fluid properties are held constant with temperature. This simplified model was found to provide an excellent approximation when using the injection fluid temperature for calculating fluid properties, even when the injection fluid was as much as ±15 • C of the initial reservoir temperature. The implications are that isothermal models can be expected to provide useful estimates of pressure buildup in this context. Despite the low viscosity of CO 2 at the low pressures studied, non-Darcy effects were found to be of negligible concern throughout the sensitivity analysis undertaken. This is because the CO 2 density is also low in this context. Based on these findings, simplified analytic solutions are derived, which accurately calculate both the pressure buildup and temperature decline during the injection period.

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“…D'ailleurs, les concentrations en CH 4 obtenues sont assez faibles pour influencer le processus de nitrification dans le fleuve (1000 nM requis pour inhiber la nitrification (Ren et al, 2000).…”

Section: Protoxyde D'azoteunclassified

Flux des gaz à effet de serre (CH4 et N2O) dans le fleuve Niger en amont de Niamey (Niger)

Alhou¹,

Boukari²

2017

Int. J. Bio. Chem. Sci

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RESUMELes écosystèmes aquatiques constituent une source importante d'émission des gaz à effet de serre très souvent négligés dans l'établissement des bilans globaux dont les principaux gaz sont le CO 2 , le CH 4 Flow of greenhouse gases (CH 4 and N 2 O) in the River Niger upstream from Niamey (Niger) ABSTRACTAquatic ecosystems constitute an important source of greenhouse gases, including CO 2 , CH 4 and N 2 O, emission that is often neglected globally. This study aimed at determining the source of the flux of CH 4 and N 2 O and the assimilation capacity of this by River Niger in Niamey area. From April 2011 to March 2013, samples were taken every two weeks to measure the concentrations of methane (CH 4 ) and nitrogen protoxide (N 2 O) dissolved in the River Niger waters in Tondibia, a small town upstream Niamey city. These concentrations were determined by gas chromatography. Additional measures of physicochemical parameters (temperature, pH, conductivity, dissolved oxygen and alkalinity) were performed. Temperature, conductivity, dissolved oxygen and pH were measured in situ using HANNA HI 9828 Multiparameter. The alkalinity is determined by titration, with 0.1 M hydrochloric acid. Results showed that the River Niger constituted a B. ALHOU et I. BOUKARI / Int. J. Biol. Chem. Sci. 10(5): 2369-2378 2370 potential source of the flux of these gases toward the atmosphere. These fluxes represented 470 µmol/m 2 /day for the protoxide of nitrogen and 3.59 µmol/m 2 /day for methane. They emanated from the degradation of organic matter inputs into the River from the terrestrial environment.

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Interfacial Tension of (CO₂ + CH₄) + Water from 298 K to 373 K and Pressures up to 30 MPa

Abstract: Interfacial tension for (CO 2 + CH 4 ) + water systems are reported for five gas compositions in the temperature range of (298-373) K and pressure range of (1-30) MPa. The effects of gas composition, temperature, and pressure on the interfacial tension of the studied systems are reported.

Cited by 157 publications

References 15 publications

Effect of Hydrocarbon and Non‐Hydrocarbon Gas Injection on the Interfacial Tension of a Gas Condensate System

Effect of Hydrocarbon and Non‐Hydrocarbon Gas Injection on the Interfacial Tension of a Gas Condensate System

Heat transport and pressure buildup during carbon dioxide injection into depleted gas reservoirs

Flux des gaz à effet de serre (CH<sub>4</sub> et N<sub>2</sub>O) dans le fleuve Niger en amont de Niamey (Niger)

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