Table 3. Locations of Gas Hydrates offshore Nigeria.

Sample ID

Latitude

Longitude

Water Depth (m)

Comment

N-074C3
3° 33.7’ N
6° 31.8’ E
677
Reference 5

N-074C4

3° 33.7’ N

6° 31.8’ E

675

Reference 5

N-082C3

3° 31.4’ N

6° 20.9’ E

770

Reference 5

N-138C2

3° 57.6’ N

5° 16.6’ E

560

Reference 5

N-138C3

3° 57.6’ N

5° 16.6’ E

560

Reference 5

N-138C6

3° 57.6’ N

5° 16.6’ E

563

Reference 5

PEF005

3° 40.9’ N

7° 25.3’ E

549

Nodules 2.0-2.6 m subbottom; largest nodule was 4-7 cm thick; H2S present

PEF013

3° 40.9’ N

7° 45.9’ E

440

Present near bottom of 4.6 m core; inferred site; H2S present

PT028a

3° 17.1’ N

6° 01.0’ E

1,528

H2S present

PT028b

3° 17.1’ N

6° 01.0’ E

1,528

White massive hydrate; H2S present

PEX005a

5° 31.5’ N

4° 15.2’ E

1,176

Massive white hydrate in bottom at 2.2 m (TD), H2S present

PEX05d2

5° 31.5’ N

4° 15.2’ E

1,172

Small white hydrates, H2S present

NGC102

3° 15.0’ N

6° 42.4’ E

1,147

Inferred based on large gas voids; H2S present

NGC103

3° 14.1’ N

6° 42.0’ E

1,185

10-cm of solid white hydrate in core catcher; H2S present

NGC226

4° 56.9’ N

4° 19.2’ E

1,341

White hydrates present; in depression, H2S present

PCO005

3° 29.7’ N

6° 54.8’ E

738

Hydrates throughout 0.4 m core; in depression; H2S present

PTX004

3° 28.7’ N

5° 34.1’ E

1,378

Small white hydrate nodules; in small depression; H2S present

PTX017

3° 34.6’ N

5° 24.6’ E

1,333

Hydrates in bottom of 2.2 m core; In abrupt depression; H2S present

PTX026

3° 28.2’ N

5° 33.6’ E

1,405

Abundant hydrates; H2S present

PAG008

4° 52.2’ N

4° 41.8’ E

569

Hydrate present; H2S present

PAG013

4° 48.2’ N

4° 29.3’ E

971

Hydrates in 0.2 to 0.4 m subbottom; H2S present

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