Bulwark Services Limited provides a range of specialised geoscience services including Seismic Data Processing, Reconstruction and Geographical Information Systems (GIS). |
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| Seismic Data Processing Services |
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 Bulwark Services Limited data processing (DP) centre is
primarily established in Nigeria to offer a high tech state-of-the-art imaging solutions to the E & P in
Nigeria. To actualize this dream, we formed a joint venture (JV) with
GX Technology Corporation,
a world leading imaging company, for technology transfer to local staff. At the moment, Bulwark Services Limited is the only
Nigerian Company which has a fully operational seismic data processing centre.
We offer high-quality pre-processing, time and depth imaging services.
Pre-processing
Our pre-processing algorithms are focused on the analysis and suppression of noise, including seismic interference,
swell noise and multiples. We also offer specialized pre-processing services such as apex-shifted multiple attenuation,
surface related multiple elimination and high resolution radon demultiple.
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Stack before swell noise removal |
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Stack after swell noise removal |
Pre-Stack Imaging Services
The main focus of Bulwark Services Limited is to be Nigeria's leader in pre-stack time and depth imaging. The heart of our time imaging is true and relative amplitude processing,
essential for fulfilling the needs of AVO, 4D and advanced imaging solutions.
Our noise removal modules are AVO consistent, avoiding statistical, deterministic processing that could adversely
and irreparably damage the data in terms of the ability to preserve information content. Our migration algorithm is capable
of accurately modeling ray bending, thereby being able to account for fourth and higher order NMO corrections.
Our velocity model building for depth imaging uses either a layer-based approach or a pure gridded approach, or a
combination of these, depending on aim and geology. We also take anisotropy into account if we have sufficient well
control in our velocity model building.
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Non-layered Velocity Update |
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Hybrid tomography |
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Layered Velocity Update |
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