Seismic-stratigraphic analysis and depositional architecture of the Cenozoic Kribi-Campo sub-basin offshore deposits (Cameroon): Seismic attributes approach and implication for the hydrocarbon prospectivity

Yugyè, Jules Alex; Chavom, Bachirou Mfayakouo; Chima, Kelvin Ikena; N'nanga, Alexandrine; Biouélé, Serge Edouard Angoua; Nkoa, Pierre Eric Nkoa; Ngos, Simon

doi:10.1016/j.jafrearsci.2022.104621

Cited by 2 publications

(2 citation statements)

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“…Notably, distinct variations can be observed between the attributes of strong wave groups and internal reflections. Thus, a comprehensive analysis of diverse seismic attributes effectively and accurately identifies and characterizes seismic horizons and delineates more precise boundaries for residual strata [37][38][39]. The 3D seismic data utilized in this study were collected at a sampling rate of 2 ms.…”

Section: Identification Of the Denudation Boundarymentioning

confidence: 99%

“…The 3D seismic data utilized in this study were collected at a sampling rate of 2 ms. The target interval exhibits a Using a combination of various seismic attributes, formation dip angle changes, and seismic phase characteristics, the boundary is defined, enabling delineation of the overbreak point and distribution of horizontal residual strata [9,38,[40][41][42][43]. General spectral decomposition (GSD) correlation calculations and instantaneous phase attributes prove to be particularly useful in determining the contact relationships between strata, providing a clearer representation of the structural relationships (Fig 8a and 8b).…”

Section: Identification Of the Denudation Boundarymentioning

confidence: 99%

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Accurate identification of traps and pinch-outs on a stratigraphic reservoir-A case from Hala’alate Mountain in the Junggar Basin, China

Li,

Yang,

Wang

et al. 2024

PLoS ONE

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In the investigation of stratigraphic reservoirs, a significant discrepancy frequently exists between the delineation of the formation pinch-out line as traced using the characteristics of seismic wave reflections and the actual location of the formation pinch-out line. This has been the main problem restricting further hydrocarbon exploration and development. In this study, Hala’alate Mountain on the northwestern margin of the Junggar Basin is taken as an example for carrying out the study of stratigraphic reservoirs by integrating logging, drilling, and 3D seismic data. On the one hand, in studies based on the identification of formation pinch-out points using seismic data, the identification error of reservoir pinch-out lines is reduced by the improved included angle extrapolation method by utilizing the half energy attribute. On the other hand, the Poisson’s ratio curve is reconstructed using acoustic curves and oil-gas sensitive logging, then the reservoir oil-bearing facies zone is predicted using Poisson’s ratio post-stack genetic inversion to comprehensively analyze the controlling factors of stratigraphic reservoirs. The study area mainly features structural lithologic reservoirs, structural stratigraphic reservoirs and stratigraphic overlaps that pinch out reservoirs. The boundary of a stratigraphic reservoir is affected by the dip angle of the unconformity surface, the formation dip angle, and other factors. The improved included angle extrapolation method improves the identification accuracy of stratigraphic overlap pinch-out reservoirs. The reservoir distribution then is calculated according to Poisson’s ratio inversion, improving the prediction accuracy for the reservoir. This method improves the predictive effect for stratigraphic reservoirs and provides a new idea for the exploration and development of similar reservoirs.

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Section: Identification Of the Denudation Boundarymentioning

confidence: 99%