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Experimental Investigation and Numerical Simulation of CO2–Brine–Rock Interactions during CO2 Sequestration in a Deep Saline Aquifer

Published on Jan 9, 2019in Sustainability2.59
· DOI :10.3390/su11020317
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Abstract
CO2 mineralization is a long-term and secure solution for geological CO2 storage that primarily depends on the CO2–brine–rock interaction during CO2 sequestration in subsurface formations. In this study, lab experiments were conducted to investigate the CO2–brine–rock interaction over short timescales, and numerical simulations were performed to reveal dynamic interactions and equilibrium interactions by applying TOUGHREACT and PHREEQC, respectively. In the experiments, the main ions of HCO3− and Ca2+ were detected in the solution, and calcite dissolution and dawsonite precipitation were observed from SEM images. The simulation results showed that the CO2 dissolution and the solution pH were affected by the temperatures, pressures, types of solutions, and solution concentrations and were further influenced by mineral dissolution and precipitation. The results of the equilibrium simulation showed that the dissolved minerals were albite, anhydrite, calcite, Ca-montmorillonite, illite, K-feldspar, and chlorite, and the precipitated minerals were dolomite, kaolinite, and quartz, which led to HCO3−, K+, and Na+ being the main ions in solutions. The results of the dynamic simulation showed that calcite and dolomite dissolved in the early period, while other minerals began to dissolve or precipitate after 100 years. The dissolved minerals were mainly albite, kaolinite, K-feldspar, and chlorite, and precipitated minerals were Ca-montmorillonite, illite, and quartz. Anhydrite and pyrite did not change during the simulation period, and the main ions were HCO3−, Na+, Ca2+, and Mg2+ in the simulation period. This study provides an effective approach for analyzing the CO2–brine–rock interaction at different stages during CO2 storage, and the results are helpful for understanding the CO2 mineralization processes in deep saline aquifers.
  • References (42)
  • Citations (1)
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References42
Newest
Published on Mar 1, 2018in Environmental Earth Sciences1.87
Bo Liu1
Estimated H-index: 1
(CUMT: China University of Mining and Technology),
Jinpeng Xu1
Estimated H-index: 1
(CUMT: China University of Mining and Technology)
+ 2 AuthorsZhimin Xu1
Estimated H-index: 1
(CUMT: China University of Mining and Technology)
Overuse of fossil fuels in industrial production and human life has increased greenhouse gas emissions. CO2 geological storage in deep saline aquifer can effectively control the extensive emission of CO2 and promote the smart cities performance of sustainability in economic, environmental, and social matters. The study area was set in the Dongying Depression, a structural unit of Bohai Bay. In this paper, four sets of reservoir and caprock layers suitable for CO2 geological storage were selected...
Published on Jan 1, 2018in Fuel Processing Technology4.51
Luc Steel3
Estimated H-index: 3
(Heriot-Watt University),
Eric James Mackay15
Estimated H-index: 15
(Heriot-Watt University),
M. Mercedes Maroto-Valer34
Estimated H-index: 34
(Heriot-Watt University)
Abstract Deep geological formations such as saline aquifers and depleted oil and gas fields are potential sites for CO 2 geological storage. The local host rock in these formations can have significant quantities of calcite present, such as in limestone or where carbonate formations have overlying chalk intervals. Therefore, the objective of this work is to understand how CO 2 -saturated brine interacts with calcite under reservoir conditions. Hydrothermal experiments were carried out over a 6 m...
Published on Sep 1, 2017in Journal of Natural Gas Science and Engineering3.86
T.D. Rathnaweera11
Estimated H-index: 11
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 3 AuthorsA.S. Ranathunga10
Estimated H-index: 10
(Monash University)
Abstract Precise knowledge of the relative flow behaviour of CO 2 and brine during CO 2 sequestration in deep saline aquifers and its impact on the sequestration process is required to ensure the safety and efficiency of sequestration projects. This numerical study therefore aims to identify the interaction-induced relative flow behaviour of reservoir rock and its influence on the hydro-mechanical and geochemical phenomena in deep saline aquifers. COMSOL Multiphysics numerical simulator was used...
Published on Aug 1, 2017in Energy5.54
T.D. Rathnaweera11
Estimated H-index: 11
(Monash University),
P.G. Ranjith40
Estimated H-index: 40
(Monash University)
+ 5 AuthorsN. Al Arifi6
Estimated H-index: 6
(KSU: King Saud University)
Abstract Although CO 2 storage in deep saline aquifers is now accepted as a potential option for atmospheric CO 2 mitigation, the chemico-mineralogical property alterations in the aquifer formation associated with CO 2 /brine/rock mineral interactions, the corresponding influence on formation hydro-mechanical properties and the effect of rock mineral structure, are not yet fully understood. This study was therefore conducted to obtain a comprehensive understanding of the effect of long-term CO 2...
Published on Jul 1, 2017in Journal of CO 2 Utilization5.19
Guodong Cui7
Estimated H-index: 7
(China University of Petroleum),
Liang Zhang14
Estimated H-index: 14
(China University of Petroleum)
+ 3 AuthorsChioma Enechukwu3
Estimated H-index: 3
(China University of Petroleum)
Abstract CO 2 can be injected into geothermal reservoirs to exploit geothermal energy. It is of concern that complex geochemical reactions induced by CO 2 can result in change of the reservoir porosity and affect the fluid flow and heat mining rate. In this study, laboratory experiments on CO 2 –water–rock interactions were conducted to investigate the geochemical reactions using rock samples from typical sandstone and carbonate reservoirs. Based on the experimental results, 3D reactive transpor...
Published on Sep 1, 2016in Transport in Porous Media2.00
Shuo Zhang6
Estimated H-index: 6
(Saudi Aramco),
Hui-Hai Liu5
Estimated H-index: 5
(Saudi Aramco)
+ 2 AuthorsSusan M. Agar10
Estimated H-index: 10
(Saudi Aramco)
The relationship between flow properties and chemical reactions is the key to modeling subsurface reactive transport. This study develops closed-form equations to describe the effects of mineral precipitation and dissolution on multi-phase flow properties (capillary pressure and relative permeabilities) of porous media. The model accounts for the fact that precipitation/dissolution only takes place in the water-filled part of pore space. The capillary tube concept was used to connect pore-scale ...
Published on May 1, 2016in International Journal of Greenhouse Gas Control3.23
Gabriela Dávila3
Estimated H-index: 3
(UPC: Polytechnic University of Catalonia),
Linda Luquot5
Estimated H-index: 5
(CSIC: Spanish National Research Council)
+ 1 AuthorsJordi Cama3
Estimated H-index: 3
(CSIC: Spanish National Research Council)
Abstract Geological CO 2 sequestration at pilot-plant scale will be developed at Hontomin (Spain). CO 2 will be injected into a limestone reservoir that contains a NaCl- and sulfate-rich groundwater in equilibrium with calcite and gypsum. The caprock site is composed of marl. The present study seeks to evaluate the interaction between the Hontomin marl and CO 2 -rich sulfate solutions under supercritical CO 2 conditions ( P Total = 150 bar, p CO 2 = 61 bar and T = 60 °C). Flow-through percolatio...
Published on Apr 1, 2016in Geosciences Journal1.49
Shanghai Du3
Estimated H-index: 3
(BNU: Beijing Normal University),
Xiaosi Su8
Estimated H-index: 8
(JLU: Jilin University),
Wei Xu5
Estimated H-index: 5
(JLU: Jilin University)
Enhanced oil recovery through carbon dioxide injection (CO2-EOR) data has made it possible to estimate the CO2 geological storage in the oilfields of the Songliao Basin, northeastern China. The storage capacity of CO2 in oilfields was determined and the results show that the theoretical storage capacity of CO2 in the oilfields of the Songliao Basin is 2.36 × 109 t, and the effective storage capacity is 0.59 × 109 t with an effective coefficient of 0.25. Among the tectonic units, the central down...
Published on Jan 1, 2016in International Journal of Coal Geology5.33
Kairan Wang3
Estimated H-index: 3
(JLU: Jilin University),
Tianfu Xu11
Estimated H-index: 11
(JLU: Jilin University)
+ 1 AuthorsHailong Tian8
Estimated H-index: 8
(JLU: Jilin University)
Abstract CO 2 sequestration in deep coal seams is a potential option for reducing greenhouse gas emissions. Once CO 2 is injected into coal seams, sealing capability of the cap rock is critical. To investigate and quantify reactions over time between CO 2 , cap rocks and brine, associated with selected cap rocks of the No. 3 coalbed of the Qinshui Basin in China, batch experiments were conducted for reacting powdered rock samples (180–220 μm) with CO 2 and brine, as well as CO 2 -free brine, at ...
Published on Oct 1, 2015in Applied Geochemistry2.89
Alexandra Maskell4
Estimated H-index: 4
(University of Cambridge),
Niko Kampman12
Estimated H-index: 12
(Royal Dutch Shell)
+ 2 AuthorsM. J. Bickle57
Estimated H-index: 57
(University of Cambridge)
The dissolution of silicate minerals by CO2-rich fluids and the subsequent precipitation of CO2 as carbonate minerals represent a means of permanently storing anthropogenic CO2 waste products in a solid and secure form. Modelling the progression of these reactions is hindered by our poor understanding of the rates of mineral dissolution–precipitation reactions and mineral surface properties in natural systems. This study evaluates the chemical evolution of groundwater flowing through a basalt aq...
Cited By1
Newest
Published on Oct 1, 2019in Journal of CO 2 Utilization5.19
Jun-Hwan Bang8
Estimated H-index: 8
,
Soo Chun Chae6
Estimated H-index: 6
+ 4 AuthorsWonbaek Kim25
Estimated H-index: 25
Abstract Desalination brine is a potential source for CO 2 mineralization aimed at reducing CO 2 emissions, because the concentration of Ca and Mg in brine is almost twice that of ordinary seawater. However, the previously achieved conversion ratio of CO 2 to carbonate minerals is too low for commercial application, as Ca and Mg compete and interfere with each other during precipitation. In this study, we tested the separate and sequential mineralization of Ca and Mg in brine, enhancing the CO 2...
View next paperExperimental study on mineralization storage mechanism of CO_2 in saline aquifers of Nanpu depression