Subsurface Fluid Injection and Energy Storage
Open Access

Table 2

Reservoir thermal properties of the Guantao formation located in the Huanghua depression and Cangxian uplift zone in Tianjin [6].

Thermal property parameters Cangxian uplift Huanghua depression zone
Top boundary (m) 1112–1522 1152–1788
Bottom boundary (m) 1137–2277 1278–2847
Thickness (m) 24–755 126–1059
Thickness ratio of sandstone and mudstone layer 0.21–0.64 0.55–0.64
Porosity (%) 18–36.6 31.5–36.6
Permeability coefficient (m/d) 0.67–1.27 0.37–1.71
Fluid temperature at the wellhead (°C) 45–81 42–78
Water production rate (m3/h) 40–60 80–120
Chemistry of the fluid HCO3–Cl–Na HCO3–Na, HCO3–Cl–Na
TDS (g/L) 1–6 1–1.9

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