A Preliminary Assessment of the Hydrocarbon Potential of Kerio Valley Basin: Gravity and Magnetic Interpretation

Citation:
Barongo J, Masinde A, Simiyu C, Murunga I, Muia G, Waswa A. "A Preliminary Assessment of the Hydrocarbon Potential of Kerio Valley Basin: Gravity and Magnetic Interpretation." Africa Energy and Technology Conference, 2016. 2016.

Abstract:

The aim of the study was to assess the hydrocarbon prospectivity of the Kerio Basin in the
Kenya Rift. An Isostatically corrected anomaly map produced from a Bouguer anomaly grid
was filtered using a Hanning low pass filter of order 2 to remove low wavelengths. Four
profiles were extracted from the grid to give 1D interpretation along straight lines. Magnetic
grid was corrected for IGRF, diurnal, filtered using a 1 Hz low pass 10km Hanning filter to
reduce noise, later, reduced to equator to place all anomalies directly over underlying
sources and make anomalies less complicated. Tilt derivative of the magnetic grid was used
to estimate depth to basement. The residual analytic signal anomaly map derived from the
magnetic grid was used to capture the response of existing near surface magnetic
signatures even the reversely magnetized ones.

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