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Table 1 Properties of the geological model (Chong et al. 2021)

From: Evaluation of closed-loop U-Tube deep borehole heat exchanger in the Basal Cambrian Sandstone formation, Alberta, Canada

Geological period

Formation

Rock type

Average depth (m)

Average thickness (m)

Average horizontal permeability (mD)

Average vertical permeability (mD)

Average porosity, fraction

Average compressibility (1/kPa)

Average heat capacity, J/m3 °C

Average thermal conductivity, J/m day °C

Cretaceous

Bearpaw

Sandstone

303

361.5

39.12

7.66

0.2100

4.03 × 10–8

2.50 × 106

2.68 × 105

Cretaceous

Belly River

Sandstone

361.5

245.6

452.96

232.31

0.2961

4.83 × 10–8

2.50 × 106

2.68 × 105

Cretaceous

Lea Park

Sandstone

607.1

135.7

587.23

397.96

0.2377

4.27 × 10–8

2.50 × 106

2.68 × 105

Cretaceous

Colorado

Sandstone

742.8

221

1998.0

21.30

0.1998

3.92 × 10–8

2.50 × 106

2.68 × 105

Cretaceous

Second White Specks

Shale

963.8

99.0

0.47

0.03

0.0903

2.96 × 10–8

2.50 × 106

1.81 × 105

Cretaceous

Belle Fourche

Shale

1062.8

38.1

129.05

53.09

0.1251

3.30 × 10–8

2.50 × 106

1.81 × 105

Cretaceous

Viking

Sandstone

1100.9

201.2

28.77

9.55

0.1612

3.72 × 10–8

2.50 × 106

2.68 × 105

Cretaceous

Ostracod

Sandstone

1302.1

65.5

1.88

0.50

0.1052

3.02 × 10–8

2.50 × 106

2.68 × 105

Devonian

Wabamun

Dolomites

1367.6

179.9

11.45

6.13

0.0713

2.59 × 10–8

2.50 × 106

4.06 × 105

Devonian

Calmar

Carbonate

1547.5

10.9

27.93

4.05

0.0603

2.42 × 10–8

2.50 × 106

2.42 × 105

Devonian

Nisku

Sandstone

1558.4

43.6

19.17

5.07

0.0526

2.23 × 10–8

2.50 × 106

2.68 × 105

Devonian

Ireton

Carbonate

1602

33.6

7.60

4.80

0.0435

1.99 × 10–8

2.50 × 106

2.42 × 105

Devonian

Leduc

Carbonate

1635.6

188.9

516.44

201.49

0.0771

2.69 × 10–8

2.50 × 106

2.42 × 105

Devonian

Cooking Lake

Carbonate

1824.5

133.8

314.72

367.08

0.0818

2.74 × 10–8

2.50 × 106

2.42 × 105

Devonian

Beaverhill Lake

Carbonate

1958.3

180.5

9.58

4.36

0.0570

2.34 × 10–8

2.50 × 106

2.42 × 105

Devonian

Slave Point

Siltstone

2138.8

33.2

0.23

0.03

0.0171

3.72 × 10–8

2.50 × 106

2.33 × 105

Devonian

Elk Point

Siltstone

2172

158.2

1.13

0.2

0.0877

2.74 × 10–8

2.50 × 106

2.33 × 105

Cambrian

Cambrian

Sandstone

2330.2

47.2

1.9

0.37

0.1484

3.63 × 10–8

2.50 × 106

2.68 × 105

Cambrian

Deadwood

Sandstone

2377.4

237.2

1.2

0.21

0.0800

2.74 × 10–8

2.50 × 106

2.68 × 105

Cambrian

Eldon

Sandstone

2614.6

123.7

1.0

0.17

0.0531

2.23 × 10–8

2.50 × 106

2.68 × 105

 

Pre-Cambrian

Crystal

2738.3

61.7

0.88

0.15

0.0250

1.53 × 10–8

2.50 × 106

2.42 × 105

  1. The geothermal target is the Basal Cambrian sandstone unit (highlighted in bold)