The TEN development project includes the collective development of three hydrocarbon accumulations – Tweneboa, Enyenra (formerly, Owo) and Ntomme. The three oil and gas fields are part of the Deepwater Tano license located offshore of Ghana.
The fields lie in water depths of 1,000m to 2,000m. The development is located 25km away from the Tullow-operated Jubilee field. It is the first deepwater field to be developed in offshore Ghana.
A field development plan for the project is expected to be submitted in the second half of 2012. First production is expected in the first quarter of 2015. A peak production rate of 100,000bopd is expected by 2018. The project is expected to recover approximately 216 million barrels of oil.
Tullow Oil is the operator of the Deepwater Tano license and holds a 49.95% interest. Partners include Kosmos Energy (18%), Anadarko Petroleum (18%), Sabre (4.05%) and the Ghana National Petroleum Corporation (GNPC,10%).
Tullow is planning to jointly develop the three fields using a single floating, production, storage and offloading (FPSO) facility. A total of 33 wells are planned to be drilled, including 15 oil production, 15 water injection, one gas production and two gas injection wells. Another 16 wells are expected to be drilled in the future, depending upon the production levels.