The horizontal dispersion properties of CO2-CH4 in sand packs with CO2 displacing the simulated natural gas

Liu, Shuyang; Song, Yongchen; Zhao, Changzhong; Zhang, Yi; Lv, Pengfei; Jiang, Lanlan; Zhao, Yuechao

doi:10.1016/j.jngse.2017.12.019

Cited by 19 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the flow profile was uninterrupted, explaining the reason behind its lower longitudinal dispersion coefficient and high CO2 storage with low mixing as expected. This agreed with the works reported by (Abba et al, 2018;Honari et al, 2016;Liu et al, 2018;Mohammed et al, 2020).…”

Section: Co2 Sequestrationsupporting

confidence: 93%

See 1 more Smart Citation

Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment

Mohammed

Abbas

Enyi

et al. 2022

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

Section: Co2 Sequestrationsupporting

confidence: 93%

“…Thus, higher temperatures have a more substantial effect on dispersion and diffusion coefficient, which eventually led to mixing CO2 and N2 from a more significant perspective (Liu et al, 2018).…”

Section: Effect Of Temperature On Dispersivitymentioning

confidence: 99%

Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment

Mohammed

Abbas

Enyi

et al. 2022

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

“…Some of the investigated factors/parameters include the effects of injected CO2 purity on the displacement process during EGR (Nogueira and Mamora, 2005;A. T. Turta et al, 2007), reservoir heterogeneity (Honari et al, 2015;S Sim et al, 2009), injection orientation and petrophysical properties variation (Abba et al, 2018a;Abba et al, 2019b;Liu et al, 2015Liu et al, , 2018Sim Sim et al, 2009;Zhang et al, 2014), injection rates (Hughes et al, 2012), temperature and pressure (Liu et al, 2020), relative permeability and sweep efficiency (Al-Abri et al, 2012), connate water presence and salinity (Abba et al, 2018b;Honari et al, 2016). Understanding these parameters as they relate to the insitu mixing between the gases and their interaction with the porous media is vital to a successful implementation and adoption of any CO2-EGR process.…”

Section: Introductionmentioning

confidence: 99%

Enhanced gas recovery by CO2 injection: Influence of monovalent and divalent brines and their concentrations on CO2 dispersion in porous media

Abba

2020

Journal of Natural Gas Science and Engineering

View full text Add to dashboard Cite

This study aims to experimentally investigate the roles of different brine types and concentrations on the longitudinal dispersion coefficient (KL) during enhanced gas recovery by CO2 injection. Core flooding process was used to simulate the displacement of CH4 by supercritical CO2 in a Buff Berea core sample at a pressure and temperature of 1400 psig and 50 o C respectively, and a CO2 injection rate of 0.3 ml/min. Individual NaCl, KCl, CaCl2 and MgCl2 solutions were prepared as test brines with ionic strengths (IS) of 1M, 2M, and 3M. The results revealed that, at lower IS of 1M, MgCl2 and CaCl2 brines had the lowest KL while the monovalent brines showed relatively higher KL. Divalent brines showed a higher degree of salting out effects at higher concentrations resulting in higher KL. The salting and drying out effects of divalent brines were responsible for higher CH4 recovery at 2M IS as CH4 comes out of solution. A hyperbolic-type relationship exists between the two properties (KL and IS), where KL decreases from 0 to 1M IS, and then increases sharply at IS >1Mthis behaviour is most pronounced in the divalent brines. Lowest contamination of the recovered CH4 was found to be between formation water salinities of 5-15 wt.%, regardless of salt type, during EGR by CO2 injection and sequestration. This study will not only present new knowledge on EGR process but will also provide an avenue for establishing a screening criterion based on formation water salinity for effective EGR process. This is a first experimental investigation which establishes the relationship between salt types and concentration and the KL in porous media.

show abstract

“…Invariably, dispersion in the vertical injection orientation of the CO2 was significantly less than that in the horizontal orientation. The authors of [10] carried out a horizontal dispersion of CO2 in CH4 in sand packs as the porous medium and also concluded that gravity plays a significant role in the dispersion of CO2 during displacement applications. Their study included long and short sand packs with similar permeabilities, while here, different consolidated core samples with different petrophysical properties and equal length were employed to ascertain the effects of their variation on dispersion.…”

Section: Introductionmentioning

confidence: 99%

“…Their study included long and short sand packs with similar permeabilities, while here, different consolidated core samples with different petrophysical properties and equal length were employed to ascertain the effects of their variation on dispersion. The reasoning behind the use of equal length core samples was to minimise systemic disparities in The authors of [10] carried out a horizontal dispersion of CO 2 in CH 4 in sand packs as the porous medium and also concluded that gravity plays a significant role in the dispersion of CO 2 during displacement applications. Their study included long and short sand packs with similar permeabilities, while here, different consolidated core samples with different petrophysical properties and equal length were employed to ascertain the effects of their variation on dispersion.…”

Section: Introductionmentioning

confidence: 99%

Influence of Permeability and Injection Orientation Variations on Dispersion Coefficient during Enhanced Gas Recovery by CO2 Injection

et al. 2019

View full text Add to dashboard Cite

This investigation was carried out to highlight the influence of the variation of permeability of the porous media with respect to the injection orientations during enhanced gas recovery (EGR) by CO2 injection using different core samples of different petrophysical properties. The laboratory investigation was performed using core flooding technique at 1300 psig and 50 °C. The injection rates were expressed in terms of the interstitial velocities to give an indication of its magnitude and variation based on the petrophysical properties of each core sample tested. Bandera Grey, Grey Berea, and Buff Berea sandstone core samples were used with measured permeabilities of 16.08, 217.04, and 560.63 md, respectively. The dispersion coefficient was observed to increase with a decrease in permeability, with Bandera Grey having the highest dispersion coefficient and invariably higher mixing between the injected CO2 and the nascent CH4. Furthermore, this dispersion was more pronounced in the horizontal injection orientation compared to the vertical orientation with, again, the lowest permeability having a higher dispersion coefficient in the horizontal orientation by about 50%. This study highlights the importance of the permeability variation in the design of the injection strategy of EGR and provides a revision of the CO2 plume propagation at reservoir conditions during injection.

show abstract

The horizontal dispersion properties of CO2-CH4 in sand packs with CO2 displacing the simulated natural gas

Cited by 19 publications

References 25 publications

Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment

Investigating the flow behaviour of CO2 and N2 in porous medium using core flooding experiment

Enhanced gas recovery by CO2 injection: Influence of monovalent and divalent brines and their concentrations on CO2 dispersion in porous media

Influence of Permeability and Injection Orientation Variations on Dispersion Coefficient during Enhanced Gas Recovery by CO2 Injection

Contact Info

Product

Resources

About