Numerical modelling of the cooling effect in geothermal reservoirs induced by injection of CO2 and cooled geothermal water | Oil & Gas Science and Technology

Subsurface Fluid Injection and Energy Storage

Open Access

Table 4

Conditions and parameters used in different scenarios for the sensitivity analysis.

	Base case 1	Base case 2	Case 1	Cases 1–1	Cases 1–2	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7	Case 8
CO₂ injection pressure at the bottom hole (MPa)	25.8	30	30	26	26	30	30	30	–	–	26	–
CO₂ injection temperature at the bottom hole (°C)	10	10	10	25	25	10	10	10	–	–	25	–
Water prod flow rate at pro1 (kg/s)	2	2	2	2	2	2	2	2	2	27.8	2	27.8
Water prod rate at pro2 (kg/s)	2	2	2	2	2	2	2	2	2	27.8	2	27.8
Tail water reinjection rate (kg/s)	2	2	2	2	2	2	2	2	2	27.8	2	27.8
Tail water reinjection flow rate at re-inj2 (kg/s)	<2	<2	<2	<2	<2	<2	<2	<2	<2	<27.8	<2	<27.8
Tail water reinjection enthalpy at re-inj1 (kJ/kg)	42	42	42	42	42	42	83.96	125.75	125.75	125.75	42	125.75
Tail water reinjection enthalpy at re-inj2 (kJ/kg)	42	42	42	42	42	42	83.96	125.75	125.75	125.75	42	125.75
Thermal conductivity of aquifers (W/(m °C))	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	2.1	3.5
Well configuration	Type I	Type I	Type II	Type II	Type II	Type III	Type III	Type III	Type IV	Type IV	Type III	Type IV
Bottom boundary	BB1	BB2	BB1	BB1	BB1	BB1	BB1	BB1	BB1	BB1	BB1	BB1
Distance between production wells (km)	1	1	1	1	2	1	1	1	1	1	1	1

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