Small-scale capillary heterogeneity linked to rapid plume migration during CO2 storage
Small-scale capillary heterogeneity linked to rapid plume migration during CO2 storage
复制标题
小规模毛细管异质性与二氧化碳储存过程中的快速羽流迁移有关
DOI:
10.31223/osf.io/jys47
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发表时间:
2020
影响因子:
5.3
通讯作者:
S. Krevor
中科院分区:
文献类型:
--
作者:
S. Jackson;S. Krevor
Unpredicted, rapid plume elongation has been observed at subsurface CO2 storage projects worldwide, exemplified by the Sleipner project. We show that conventionally ignored centimetre-metre scale heterogeneity in capillary pressure characteristics can manifest as rapid field-scale, decametre-kilometre, plume migration. We analyse the effect in the Goldeneye Field, UK, a proposed storage site with a unique combination of sample/data accessibility and generality as an archetype sandstone reservoir. We overcome previous barriers by characterising in greater detail over larger scales the 65m reservoir height at cm-m resolution and through use of an upscaling scheme which resolves small-scale heterogeneity impacts in field-scale simulations. These models reveal that significant early time retardation of buoyantly rising CO2 plumes is followed by rapid migration under the caprock in the presence of anisotropic, layered heterogeneities. Lateral migration speeds can be enhanced by 200%, placing first order controls on fluid flow and providing a mechanistic explanation for field observations. Plain Language Summary Geological carbon storage is a promising technique to reduce greenhouse gas emissions. Captured carbon dioxide is generally injected into a subsurface reservoir over 1000m Corresponding author: S. J. Jackson, samuel.jackson@csiro.au
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影响因子:
5.4
作者:
Schmid, K. S.;Geiger, S.
通讯作者:
Geiger, S.
影响因子:
5.2
作者:
Neufeld, Jerome A.;Hesse, Marc A.;Huppert, Herbert E.
通讯作者:
Huppert, Herbert E.
影响因子:
5.4
作者:
Jackson, Samuel J.;Agada, Simeon;Krevor, Samuel
通讯作者:
Krevor, Samuel
影响因子:
--
作者:
Jackson S
通讯作者:
Jackson S