Geophysical early warning of salt precipitation during geological carbon sequestration.
Geophysical early warning of salt precipitation during geological carbon sequestration.
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地质固碳过程中盐降水的地球物理预警。
DOI:
10.1038/s41598-020-73091-3
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发表时间:
2020-10-05
影响因子:
4.6
通讯作者:
Best AI
中科院分区:
文献类型:
--
作者:
Falcon-Suarez IH;Livo K;Callow B;Marin-Moreno H;Prasad M;Best AI
Sequestration of industrial carbon dioxide (CO2) in deep geological saline aquifers is needed to mitigate global greenhouse gas emissions; monitoring the mechanical integrity of reservoir formations is essential for effective and safe operations. Clogging of fluid transport pathways in rocks from CO2-induced salt precipitation reduces injectivity and potentially compromises the reservoir storage integrity through pore fluid pressure build-up. Here, we show that early warning of salt precipitation can be achieved through geophysical remote sensing. From elastic P- and S-wave velocity and electrical resistivity monitoring during controlled laboratory CO2 injection experiments into brine-saturated quartz-sandstone of high porosity (29%) and permeability (1660 mD), and X-ray CT imaging of pore-scale salt precipitation, we were able to observe, for the first time, how CO2-induced salt precipitation leads to detectable geophysical signatures. We inferred salt-induced rock changes from (i) strain changes, (ii) a permanent ~ 1.5% decrease in wave velocities, linking the geophysical signatures to salt volume fraction through geophysical models, and (iii) increases of porosity (by ~ 6%) and permeability (~ 7%). Despite over 10% salt saturation, no clogging effects were observed, which suggests salt precipitation could extend to large sub-surface regions without loss of CO2 injectivity into high porosity and permeability saline sandstone aquifers.
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DOI:
10.1016/j.ijggc.2014.06.023
发表时间:
2014-09-01
影响因子:
3.9
作者:
Baumann, G.;Henninges, J.;De Lucia, M.
通讯作者:
De Lucia, M.
影响因子:
4.6
作者:
Huinink, HP;Pel, L;Michels, MAJ
通讯作者:
Michels, MAJ
影响因子:
2.8
作者:
Kim, Jongwook;Nam, Myung Jin;Matsuoka, Toshifumi
通讯作者:
Matsuoka, Toshifumi
影响因子:
6.1
作者:
Kim, Myeongsub;Sell, Andrew;Sinton, David
通讯作者:
Sinton, David
影响因子:
5.8
作者:
Arganda-Carreras, Ignacio;Kaynig, Verena;Seung, H. Sebastian
通讯作者:
Seung, H. Sebastian