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