LOG INTERPRETATION AND DATA TREND OF SYDEK WELL NIGER DELTA BASIN.

ABSTRACT

Formation evaluation is the practice of determining both the physical and chemical properties of rocks and the fluids they contain. The aim of this study is to integrate petrophysical log data to qualify and quantify reservoirs in order to assess the production potential of the Sydek well. The characterization of the Sydek Well reservoir sand bodies was made possible by the careful integration of well log responses and core information. The study examined the vertical sequence of lithologies of the sand bodies, trend of data, and log interpretation. A detailed petrophysical parameter estimation of the Sydek well showed the following: Reservoir quality was found to be strongly influenced by grain size, in reservoirs where porosities are high, permeabilities are equally high and vice versa, these high values of porosities and permeabilities are attributed to the well sorted nature of the sands, porosity and permeability increased with increasing reservoir quality, average water saturation values range from 12 to 54, while the average hydrocarbon saturation values range from 35 to 94, the formation is medium - coarse grained, well to well sorted sand that occur in upper shoreface environment and quantitative porosity verification shows good correlation between log and core porosities, This study will help optimize reservoir characteristics and carry out reservoir monitoring & management of the wells. With advent of modern well logging tools with enhanced data analysis reservoir wells cannot be over emphasized. Therefore this study has the tendency to enhance the hydrocarbon potential of the Niger Delta basin.