PETROPHYSICAL AND STRUCTURAL ANALYSIS OF MAITI FIELD, NIGER DELTA, USING WELL LOGS AND 3-D SEISMIC DATA.

Well logs, checkshot and 3-D seismic data have been evaluated to delineate oil bearing sand reservoirs, to determine the petrophysical parameters and to analyze the geologic structures within Maiti field. Three wells were evaluated and three hydrocarbon reservoirs were delineated. petrophysical parameters for the reservoir sands have porosity, φ range of 0.28 -0.35, permeability k(mD) range of 68-168, hydrocarbon saturation, Sh range of 0.65 to 0.68 and volume of shale Vsh range of 0.02 - 0.15. The average values of these petrophysical parameters were used to rank the three reservoirs R1, R2, R3. It was deduced that reservoir R1 is the most prolific reservoir while R2 is the least. The structural analysis shows a fault assisted anticlinal structure known as structural trap within Maiti field, Niger delta, Nigeria. [ABSTRACT FROM AUTHOR]