3D SEISMIC INTERPRETATION

This project presents an integrated 3D seismic interpretation and identification of hydrocarbon prospects of Yeager Field, which is located within the prolific Niger Delta Basin of Nigeria. There search has been performed using high-resolution 3D seismic data, integrated with well-login formation provided by the Shell Petroleum Development Company (SPDC) to identify subsurface structural and stratigraphic features that are relevant to hydrocarbon accumulation. A comprehensive fault mapping, horizon interpretation, seismic-to-well tie, velocity modeling, and depth conversion were undertaken and complemented by seismic attribute analysis comprising RMS amplitude, maximum amplitude, average energy, and average magnitude attributes. Thirty five (35) faults were identified dominated by growth faults, rollover anticlines, and synthetic-antithetic fault systems typical of the extensional regime of the Niger Delta. Several structural closures with trapping potential were identified from the time and depth structure maps, while seismic attributes indicated amplitude anomalies that suggested the presence of hydrocarbon in the reservoir sands of the Agbada Formation. The seismic-to-well tie provided a reliable time-depth relationship that increased the accuracy of horizon correlation by more than forty percent. The results indicate that fault-assisted closures, especially the rollover anticlines resulting from the growth faults, are the primary trapping mechanism in the field. Potential hydrocarbon prospects have been delineated using this integrated approach, providing a robust geological framework for future exploration and development planning in the study area. The importance of advanced 3D seismic interpretation in reducing exploration risk and optimizing hydrocarbon recovery in the complex structural setting of the Niger Delta Basin cannot be overemphasized.

Niger Delta Basin is one of the world’s most active oil producing basins made up of
structural features that, if poorly understood could prevent the best possible
hydrocarbon production. In Order to develop the field, it is crucial to understand the
complex structural links between the region’s fault networks and stratigraphic
stacking patterns. The only tools available for studying and interpreting geologic
structural subsurface characteristics are 2D and 3D seismic data paired with drilling
data. Utilizing the Petrel 2017 software, 3D seismic, well log and structural
interpretation were done to evaluate the reservoirs potential for hydrocarbon
production. The study makes use of advanced seismic data collecting and processing techniques to
build 3D subsurface models with a high level of detail. This research aims to locate
probable hydrocarbon reservoirs, evaluate their geometry, estimate reservoir
characteristics, and assess the total reservoir potential within the Niger Delta Basin by
integrating geological and geophysical data. Our research focuses on locating structural elements, stratigraphic variations, and
fluid interactions inside the reservoirs. We develop thorough geological models using
state-of-the-art software and visualization tools, allowing precise reservoir mapping
and volumetric calculations. The results of this project offer useful advice for the sustainable use of the area's
hydrocarbon resources in addition to deepening our understanding of the geological
complexity of the basin