Browsing by Author "Hussein Ali Ahmed Edris"

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    A Field Parameter Test for the Design of Seismic Survey in Highly Faulted Subsurface area Muglad Basin
    (Al-Neelain University, 2014) Hussein Ali Ahmed Edris
    ABSTRACT Although high resolution seismic survey techniques are powerful tools for imaging subsurface complex geological structures, but the expensive field efforts often limit their applications in commercial exploration projects. It will be shown that initial survey design based on target horizons requirements, the result of pilot test of 2D seismic records, and generation of vertical mini stack sections , these have the potential to increase significantly the resolution of the acquired data, with less costs. A complex geological and geophysical model extracted from existing data is used to calculate the imaging requirements of several sub surface layers. Fifteen energy source patterns, two receiver array patterns and three different spread geometries with three vertical mini stack sections were tested in Nuggara Oil field, Muglad basin, to determine the optimal choice of receiving and shooting parameters. By adopting a certain quantitative and qualitative analysis, it is found that registered reflection events contain high resolution when shorter spreads with smaller bin size are used with less explosive charge size than in expected acquisition parameters.