Erratum to the paper “CO2/water interfacial tensions under pressure and temperature and conditions of CO2 geological storage”, by Pierre Chiquet, Jean-Luc Daridon, Daniel Broseta, Sylvain Thibeau, published in Energy Convers Manage 48 (2007) 736–44

Measurement and modelling of interfacial tension in methane/water and methane/brine systems at reservoir conditions

“…Similar to other gas-water systems [5,8,[10][11][12][13][14][15][16][17][18][19], the addition of salt resulted in a general increase of the interfacial tension values over the pressures and temperatures considered, as depicted in Figure 8. Overall, the presence of 5 wt% and 10 wt% NaCl resulted in an average increase of the IFT in 1.4 mN.m -1 and 4.1 mN.m -1 , respectively, when compared to the methanewater IFT.…”

Study of the impact of high temperatures and pressures on the equilibrium densities and interfacial tension of the carbon dioxide/water system

“…Chiquet et al [6], Bachu and Bennion [21], Tabasinejad et al [29] and Shariat et al [25] measured the densities of the saturated phases with a vibrating-tube and the results showed that the approximation of the water-saturated vapour phase density to that of pure CO 2 [30] is in fact valid for temperatures and pressures up to 473 K and 140 MPa, respectively. However, as demonstrated by Chiquet et al [6], the effect of dissolved CO 2 on the density of the liquid aqueous phase can cause severe underestimation of the IFTs close to the density inverse conditions, where the deviations of the real (measured) density difference from that of pure substances are greatest.…”

“…The injection targets are estimated to be at depths greater than 2000 m where pressures and temperatures can exceed 30 MPa and 373 K [2,6]. At these conditions, pure CO 2 will be in a supercritical state (T c ~ 304.13 K and P c ~ 7.38 MPa) and with densities higher than 662 kg·m -3 .…”

“…Accurate knowledge of the effect of pressure and temperature on the interfacial tension (IFT) of the carbon dioxide / water system is, among other thermophysical properties, critical for the safe and economical design of operations and facilities, maximizing the storage of carbon dioxide in the narrow pore throats of rocks in deep geological formations such as aquifers and depleted oil reservoirs [6,7]. This property controls, to a large extent, not only the CO 2 storage capacity of the target reservoir, but also the oil recovery factor in a nearmiscible injection processes [3].…”

“…At these conditions, pure CO 2 will be in a supercritical state (T c ~ 304.13 K and P c ~ 7.38 MPa) and with densities higher than 662 kg·m -3 . Due to its key role in the design of the processes mentioned above, many studies have been conducted on the experimental measurement of the IFT of the CO 2 /H 2 O system during the last two decades [6,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. In most of these studies the pendant drop method has been used to perform these measurements over a wide range of experimental conditions.…”