Location | Depth of BH (m) | No. of clay layers | Thickness of clay (m) | Thickness of sand (m) | Clay thickness/Total Depth of BH |
Onne | 300 | 2 | 85 | 215 | 0.283 |
Omoku | 260 | 1 | 4 | 256 | 0.015 |
Warri | 160 | 1 | 6 | 154 | 0.038 |
Oloibiri/Otakeme | 277 | 4 | 26 | 277 | 0.094 |
Kaiama | 348 | 3 | 34 | 270 | 0.098 |
Gbaran-Ubie | 530 | 4 | 40 | 492 | 0.075 |
Bille | 400 | 5 | 61 | 339 | 0.153 |
Nembe/Basambiri | 366 | 5 | 78 | 288 | 0.213 |
Bonny BRT | 360 | 8 | 109 | 251 | 0.303 |
Bonny Life Camp | 362 | 12 | 143 | 219 | 0.395 |
Bonny Water Board | 450 | 7 | 171 | 279 | 0.380 |
Bonny NLNG Oguede | 452 | 6 | 155 | 297 | 0.343 |
Bonny NLNG Finima | 450 | 10 | 109 | 341 | 0.242 |
Ogidigbein/Ugborodo | 600 | 11 | 132 | 468 | 0.220 |