Evaluation of Facies Architecture and Depositional Environment of G-Field in the Greater Ughelli Depobelt of the Niger Delta Area, Nigeria

This study utilized well logs and core data to evaluate facies architecture and depositional environment of G-field in the Greater Ughelli Depobelt of the Niger Delta area in Nigeria. The study revealed five lithofacies unites, namely, Bioturbated Sandstone Facies (BSF), Coarse to Pebbly Sandstone Facies (CPSF), Mudsone Facies (MF), Very Fine Grained laminated Sandstone Facies (FGLSF), and Wavy- to Flaser-Bedded Facies (WFbF). The lithofacies were grouped into Two (2) Facies Assemblages that where established from the five mentioned lithofacies A-E. The Facies Assemblages are Open-marine Facies Association, Brackish-water Marginal-marine Facies Association and Tidal Flat Association. Gamma Ray (GR) logs within the cored interval defined an aggrading deposit. These assemblages were used to infer the various environments responsible for the deposition

Feasibility Study and Analysis of a Micro-Grid Scheme for Federal University of Technology, Owerri, Imo State, Nigeria

The need for reliable, robust, clean and secure electrical energy has led to developments in distributed off-grid solutions. This work considers various distributed generation sources such as; hydro, solar and wind, within the specified environment. Its aim is to ascertain the most feasible micro-grid solution for the specified campus environment. The work evaluates various micro-grid models to ascertain the most suitable model for the campus environment. HOMER micro-grid optimization software was used to aid the analysis. The micro hydropower plant at Otamiri River was found to be a good source with the power output of 586kW, and cost of energy per kWh of $0.284. Consequently, the model of the micro-grid was further analyzed in MATLAB/Simulink to determine the behavior of the system. The effect of load variation and short circuit fault was observed, and it shows the performance of the system to be stable