| dc.description.abstract | This research was carried out in Lokichar Basin located in Turkana County in
Northwestern Kenya. The study area is within the Tertiary Rift Basin of the four
sedimentary basins of Kenya which include Lamu, Anza, Mandera and Tertiary Rift
basins. Lokichar basin consists of relatively simple structural geometry with a major
basin-bounding fault on the western margin called Lokichar fault, and a flexural margin
on the eastern margin.
The present investigation involved the interpretation of old secondary seismic sections in
order to come up with a subsurface structure with an aim of identifying and delineating
possible hydrocarbon traps and prospective areas. Five lines of 2D seismic data from
Lokichar basin were interpreted. Data analysis and interpretation was done using SMT
Kingdom Suite vers 8.6 software. The interpretation process involved picking and tracing
of horizons and faults of interest from the vertical seismic displays of the seismic lines.
Interpreted results have confirmed that there exists a major bounding fault called
Lokichar fault on the western side of the basin. The fault could be responsible for
controlling sediments deposition within Lokichar basin. Lokichar fault was determined to
be generally a normal low angle fault that dips towards the east. Similarly, most of the
other faults interpreted were found to be mostly high angle, listric in nature and generally
dipping towards the east.
Positive and negative flower structures were found to be common in Lokichar basin.
Structures that control hydrocarbon accumulation and trapping were identified to be fault
closures and fold anticlines. These structures could therefore form the target areas for
hydrocarbon prospecting. On the interpreted seismic lines, hydrocarbon prospective areas
were estimated based on the results of Loperot-1 well. | en |
