Geothermal Energy Potential in Selected Areas of Western Australia ...

More documents

Recommendations

Info

3 Attachment A: 170 wells not previously studied........................................................ 47 Attachment B: 80 wells previously studied ............................................................... 50 Attachment C: Basement lithology and depths for wells to be assessed.................. 52 Attachment D. Basement lithology and depths for 80 previously studied wells ........ 61 Attachment E. Summary of measured rock thermal conductivity data for the Perth Basin ........................................................................................................................ 65 Attachment F – Recalculated conductivities for the northern Perth Basin from lithology mixing methods .......................................................................................... 66 Attachment G – Recalculated conductivities for the southern Perth Basin from lithology mixing methods .......................................................................................... 67 Attachment H – Calculated heat generation for granite samples in and adjacent to the Perth Basin, WA. ...................................................................................................... 68 Attachment I – Calculated heat generation for gneiss samples in and adjacent to the Perth Basin, WA. ...................................................................................................... 69 Attachment J – Calculated heat generation for sedimentary rock samples in and adjacent to the Perth Basin, WA............................................................................... 69 Attachment K – Modelled heat flow and one standard deviation uncertainty (‘error’). ‘Reliability’ based on quality of temperature data. .................................................... 71 Attachment L – Inferred isotherm depths and basement temperatures for wells in the Perth Basin, WA. ‘Reliability’ based on quality of temperature data. ........................ 75 www.hotdryrocks.com
4 1. Introduction The Department of Industry and Resources (DoIR) provided HDRPL with basic data for 250 wells in the Perth Basin, including scanned log headers, bottom hole temperatures (BHTs) recorded in wells, geological and geophysical reports, and other relevant data. HDRPL was commissioned to utilise these data to address the Scope of Services (Section 2.2 of the RQF) for the following topics:- A. For 170 wells, not previously studied (Attachment A), provide the following information:- • determine depth of basement at the well locations • identify basement lithology from existing geophysical data • calculate the heat flow capacity of the basement rock samples • verify geothermal data and extrapolate temperature to the basement • generate isotherm maps at 100°C, 150°C and 200°C B. For 80 wells, previously studied (Attachment B), provide the following information:- • determine depth of basement at the well locations • identify basement lithology from existing geophysical data • calculate the heat flow capacity of the basement rock samples In addition to this, HDRPL was also requested to compile and comment on the adequacy of data on the current in-situ stress field in areas of potential interest for Engineered Geothermal Systems (EGS). www.hotdryrocks.com
Page 1 and 2: Hot Dry Rocks Pty Ltd Geothermal En
Page 3 and 4: • The distribution of heat flow v
Page 5: 2 List of Figures Figure 2.1 Strati
Page 9 and 10: 6 inverted Permian half graben in t
Page 11 and 12: 8 Figure 2.2 Basin subdivisions and
Page 13 and 14: 10 east. The major sub-basin in the
Page 15 and 16: 12 Figure 3.1 Gravity image with OZ
Page 17 and 18: 14 Figure 3.3 Gravity image with OZ
Page 19 and 20: 16 4. Heat flow modelling methodolo
Page 21 and 22: 18 circulation. The accuracy of the
Page 23 and 24: 20 Table 4.1 Summary of rock therma
Page 25 and 26: 22 column. OZ SEEBASE depth-to-base
Page 27 and 28: 24 4.7. Estimating basement heat ge
Page 29 and 30: 26 5. Heat flow modelling results 5
Page 31 and 32: 28 data requires a positive error m
Page 33 and 34: 30 The Dongara Field has 28 wells t
Page 35 and 36: 32 Figure 5.5 A bivariate plot of a
Page 37 and 38: 34 Figure 6.1 Inferred and gridded
Page 39 and 40: 36 Figure 6.3 Inferred and gridded
Page 41 and 42: 38 7. Stress field in the Perth Bas
Page 43 and 44: 40 King et al. (2008) 14 reported s
Page 45 and 46: 42 Regional Shmax Figure 7.2 Major
Page 47 and 48: 44 7.5. Recommendations for Stress
Page 49 and 50: 46 • Examine evidence for coal di
Page 51 and 52: 48 56 Dongara 25 W001065 DEV N GDA9
Page 53 and 54: 50 Attachment B: 80 wells previousl
Page 55 and 56: 52 Attachment C: Basement litholog
Page 57 and 58:
54 Well name TD (m) Probable Baseme
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
66 Attachment F - Recalculated cond
Page 71 and 72:
Attachment H - Calculated heat gene
Page 73 and 74:
Attachment J - Calculated heat gene
Page 75 and 76:
72 Dongara 12 3750 Gneiss N -29.238
Page 77 and 78:
74 Murrumbah 1 3750 Gneiss N -29.15
Page 79 and 80:
Well name Overall reliability (high
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Overall reliability (high, low, Hea
Page 87 and 88:
Page 89 and 90:
Page 92:
Executive summary The Western Austr
Page 95 and 96:
2 1.0 Introduction Thermal conducti
Page 97 and 98:
4 2.0 Methodology Hot Dry Rocks Pty
Page 99 and 100:
6 Gage Sandstone Quinn's Rock 1 776
Page 101 and 102:
8 Sue Group: Ashbrook Sandstone Sue
Page 103 and 104:
10 3. Thermal conductivity of rocks
Page 106 and 107:
Table of Contents 1.0 HEAT FLOW MOD
Page 108 and 109:
www.hotdryrocks.com 3
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204 and 205:
Page 206 and 207:
Page 208 and 209:
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Page 216 and 217:
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Page 268 and 269:
Page 270:
show all

Geothermal Energy Potential in Selected Areas of Western Australia ...

Create successful ePaper yourself

Delete template?

Save as template?