Structural Interpretation of 3D Seismic Data of Akos Field in the Coastal Swamp Depobelt of the Niger Delta

Research areas:

• Volume 4,Issue 2, March 2017

Year:

2017

Type of Publication:

Article

Keywords:

Hydrocarbon Exploration, Coastal Swamp Niger Delta, Structural Interpretation, Seismic Analysis

Authors:

Alege; Tope Shade

Journal:

IJRIES

Volume:

4

Number:

2

Pages:

21-26

Month:

March

ISSN:

2394-1375

BibTex:

@article{130, author = "Alege and Tope Shade", abstract = "In a bid to achieve the goals of exploration and production of hydrocarbon demands in the Niger Delta, this work employs structural tool to interprete the hydrocarbon plays of Akos field in the Coastal Swamp Depobelt of the Niger Delta. Three-dimensional seismic (post stack time migrated SEGY) and Petrel software 3D seismic interpretation module were employed to carry out this study. Seismic analysis based on attributes such as amplitude, reflection continuity, and termination were used in generating the horizons and faults used in both seismic structural and sequence interpretations. Structural interpretations from time and depth maps revealed the presence of syn-sedimentary dominant growth faults associated with rollover anticlines that can serve as pathways for upward migration of hydrocarbon generated within the underlying Akata shale. This may have been initiated by the combined effect of the mobile shale belt of the Akata and the tectonic eustatic effect of the basin. Stratigraphic plays identified are truncations, at the base of the channel of facies and anticlinal structures. Seismic facies analysis on the seismic reflection profile gives three facies denoted as A, B and C which are associated with the Pre-channel and Channel deposits and have chaotic, parallel and sigmoidal reflections. Exploration wells may be sited at points from structural closures overlap which have the potential for hydrocarbon recovery and optimization in Akos field", issn = "23941375", journal = "IJRIES", keywords = "Hydrocarbon Exploration, Coastal Swamp Niger Delta, Structural Interpretation, Seismic Analysis", month = "March", number = "2", pages = "21-26", title = "{S}tructural {I}nterpretation of 3{D} {S}eismic {D}ata of {A}kos {F}ield in the {C}oastal {S}wamp {D}epobelt of the {N}iger {D}elta", volume = "4", year = "2017", }

Abstract:

In a bid to achieve the goals of exploration and production of hydrocarbon demands in the Niger Delta, this work employs structural tool to interprete the hydrocarbon plays of Akos field in the Coastal Swamp Depobelt of the Niger Delta. Three-dimensional seismic (post stack time migrated SEGY) and Petrel software 3D seismic interpretation module were employed to carry out this study. Seismic analysis based on attributes such as amplitude, reflection continuity, and termination were used in generating the horizons and faults used in both seismic structural and sequence interpretations. Structural interpretations from time and depth maps revealed the presence of syn-sedimentary dominant growth faults associated with rollover anticlines that can serve as pathways for upward migration of hydrocarbon generated within the underlying Akata shale. This may have been initiated by the combined effect of the mobile shale belt of the Akata and the tectonic eustatic effect of the basin. Stratigraphic plays identified are truncations, at the base of the channel of facies and anticlinal structures. Seismic facies analysis on the seismic reflection profile gives three facies denoted as A, B and C which are associated with the Pre-channel and Channel deposits and have chaotic, parallel and sigmoidal reflections. Exploration wells may be sited at points from structural closures overlap which have the potential for hydrocarbon recovery and optimization in Akos field

Full text: IJRIES_130_Final.pdf Online version