Implementation of a Telemetry System for Real-Time Oil Pipeline Flow and Pressure Monitoring in Rivers State

Oil theft and pipeline vandalism in Rivers State, South South Nigeria, cause billions of Naira in losses annually for oil producing companies and the Nigerian government, while also triggering environmental contamination events in communities along pipeline corridors. This study presents the implementation of a telemetry-based system for real-time monitoring of flow rate and pressure at multiple nodes along a 35-kilometre crude oil gathering pipeline operated in Eleme and Tai Local Government Areas. Remote telemetry units housing Coriolis flow meters and piezoelectric pressure transducers are installed at three pipeline nodes, transmitting readings via satellite communication to a central operations control room. An anomaly detection algorithm running on the control room server computes mass balance discrepancies between upstream and downstream flow measurements and triggers operational alerts when imbalances exceeding the defined theft-indicative threshold are detected. The system was installed and commissioned over a six-month period, followed by a nine-month operational monitoring assessment. During the monitoring period, the system detected five mass balance anomaly events, four of which were confirmed as illegal bunkering tapping incidents following field investigation. Detection lag time from theft initiation to alert generation averaged 11 minutes. False alarm rate was 12 percent, primarily attributable to legitimate pig-run operations that temporarily cause flow perturbations. The study presents a cost-benefit analysis showing payback within 8 months based on the value of crude oil protected from theft during the monitoring period. Keywords: telemetry, pipeline monitoring, flow measurement, oil theft, Rivers State