African Oil and Gas Engineering | 02 December 2010
Methodological Evaluation of Process-Control Systems in Ethiopian Oil and Gas Operations: A Randomized Field Trial on System Reliability
Y, a, r, e, d, D, e, b, e, l, a, ,, T, a, d, e, s, s, e, A, s, g, e, d, e, ,, T, e, s, f, a, y, e, A, l, e, m, a, y, e, h, u, ,, M, e, k, o, n, n, e, n, G, e, b, r, e, a, b
Abstract
The Ethiopian oil and gas sector is transitioning from exploration to production, necessitating robust process-control systems for reliability and efficiency. A randomized field trial was conducted across five oil and gas facilities. Process data were collected using a Bayesian hierarchical model to estimate the probability of system failure, with robust standard errors accounting for variability. The analysis revealed that facility-specific configurations significantly influence system reliability (proportion: 0.75). This study establishes a methodological framework for assessing process-control systems in Ethiopian operations, providing insights into reliability optimization. Implementing the recommended model can enhance system performance and reduce downtime by at least 10% across all facilities tested. The maintenance outcome was modelled as $Y<em>{it}=\beta</em>0+\beta<em>1X</em>{it}+u<em>i+\varepsilon</em>{it}$, with robustness checked using heteroskedasticity-consistent errors.