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Table 1

Maximum gradients in selected sites.

Gas storage Authors CCS depth (m) Pmax (MPa) Maximum gradient (MPa/m) Maximum gradient (psi/ft)
Aldbrough Slingsby et al., 2011 1800 27 0.015 0.66
Carriço Colcombet et al., 2008 1000 18 0.018 0.8
Etzel Schweinsburg and Schneider, 2010 1150 20 0.017 0.76
Holford Fawthrope et al., 2013 ≈550 10 0.018 0.8
Krummhörn Rummel et al., 1996 ≈1500 27 0.018 0.8
Nuttermoor Bernhardt and Steijn, 2013 ≈1000 17 0.017 0.76
Teesside Mullaly, 1982 ≈350 4.5 0.013 0.58
Zuidwending Hoelen et al., 2010 1000 18 0.018 0.8
Manosque de Laguérie and Durup, 1994 1000 18 0.018 0.8
Stublach Pellizzaro et al., 2011 ≈550 10 0.018 0.8
Egan Chabannes, 2005 1125 23 0.0204 0.9
Kansas Istvan, 1998 NA 12
China Fansheng et al., 2010 ≈2000 17 0.016–0.017 0.72
Aldbrough McLeod et al., 2011 ≈1500 27 0.0155 0.66
Nüttermoor Bernhardt and Steijn, 2013 ≈1020 17 0.017 0.8
Germany Wagler and Draijer, 2013 ≈648 12.2 0.0188 0.83
Torup Johansen, 2010 0.0184 0.81
Huai’an Zhao et al., 2013 1493 26.0 0.0175 0.77
Jintan (Xi-2#) Yang et al., 2015 937 13.5 0.144 0.64
15.0 0.0160 0.7
Jintan (PetroChina) Hongling Ma, Institute of Soil and Rock Mechanics, Wuhan, pers. commun. (May 2018) ≈1000 17.0 0.0170 0.76
18.0 0.0180 0.8
Jintan (Sinopec) 900 17.0 0.0188 0.83
Qianjiang 1980 32.0 0.0160 0.7

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