Open Access

Table 1

Parameters related to wellbore structures, physical properties of reservoir and injected superheated steam.

Parameter Value Parameter Value
Depth of well/m 284 The thermal conductivity of formation/(W (m °C)−1) 1.73
The inside radius of tubing/m 0.038 Reservoir temperature/°C 18.8
The outside radius of tubing/m 0.0445 Reservoir pressure/MPa 2.38
The outside radius of insulation/m 0.0555 Reservoir thickness/m 15
The inside radius of casing/m 0.0807 The thermal diffusivity coefficient of the formation /(m2 d−1) 0.108
The outside radius of casing/m 0.0889 The reservoir thermal conductivity/(W (m °C)−1) 1.73
The outside radius of cement/m 0.01236 The heat capacity of reservoir/(kJ (m3 °C)−1) 2575
The thermal conductivity of tubing /(W (m °C)−1) 35 Thermal conductivity of cement/(W (m °C)−1) 0.933
The thermal conductivity of casing /(W (m °C)−1) 35 Superheated steam pressure at wellhead/MPa 3.8
The thermal conductivity of insulation/(W (m °C)−1) 0.07 Superheated steam temperature at wellhead/°C 3288
The thermal conductivity of cement/(W (m °C)−1) 0.933 Superheated steam-injection rate/(t h−1) 6

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