Tema Akosombo Product Pipeline (TAPP) is a 90 km 6″ multi-products pipeline in Ghana, running from the Tema Oil Refinery (TOR) to the Port of Akosombo on Lake Volta. The pipeline was initially designed to facilitate the transportation of petroleum products for local distribution and shipment via river barges to Buipe in the Northern Region of Ghana. The system consists of three sections; the first running from the TOR to Accra Plains Depot (APD), the second from APD to Mami Water Depot (MWD) and the third from MWD to the Akosombo Depot (AKD).
Along the existing pipeline, various third-party intrusions existed and product was “lost” from the Tema Oil Refinery to the Akosombo Terminal. The pipeline was decommissioned and has been deemed out of service for more than five years.
Bulk Oil Storage and Transportation Company Limited (BOST), owner of the TAPP line, decided to re-commission the TAPP line in 2016. To successfully re-commission the line, the entire pipeline system had to be analysed and various sections had to be refurbished.
Scope of Work:
- Repairing/Replacing existing Cathodic Protection system;
- Pipeline Current Mapping (PCM) to identify the third-party intrusion locations and necessary cut outs;
- Refurbishing/Replacing pipeline cut outs;
- Installing new supply and return lines across the Adomi Bridge;
- Refurbishing pump stations, pig launching and pig receiving facilities;
- Refurbishment of mainline valve chambers;
- Hydrostatic Pressure Testing, this included displacing the existing sludge in the pipeline;
- Installation of new route markers; and
- Recommissioning of the pipeline.