Reservoir heterogeneity and flow zones in a selected field, offshore Niger delta

In this study, suites of wire line logs and core data from four oil wells in a field in the Niger Delta was analyzed using stratified modified Lorenz plot (SML) in order to ascertain the flow zones and establish reservoir heterogeneity for optimal production planning and maximum recovery efficiency. SML plot uses conventional porosity, permeability logs and cores data in a simple cross plotting technique where Shaly intervals on the SML plot tend horizontal to low-angle while sandy intervals with the highest proportion in total cumulative storage capacity and cumulative slow has a steeper gradient-slope on the SML plot. Results from the SML cross-plot of cumulative flow capacity and cumulative storage capacity using well log data identified 57 flow units. For the four wells studied using the core data, 24 flow units were delineated and the value obtained from the stratified modified Lorenz plot (SML) ranges between 0.12 to 0.5 and 0 to 0.56 respectively. The findings indicates that the greater portion of the reservoirs in the area were homogenous maximization of the production of the hydrocarbon from the field in the Niger Delta area.