The Kowe Block is located approximately 20 km offshore of Gabon with a water depth of 100m. It contains three fields, Tchatamba Marin, Tchatamba South and Tchatamba West, together the “Tchatamba Complex”. Discovered between 1993-1997, production from the fields started in 1998. A peak production of 43 Kbopd was reached in 2001.

High-capacity oil production facility in an emerging region

Production in the Kowe Block in Gabon proved to be stronger than originally planned and, with additional reserves proven, the facilities were extended in 2003 and a permanent pipeline was constructed directly to the onshore Cap Lopez terminal.

Production in all three fields is from the Lower Cretaceous Madiela, Cap Lopez, Azile and Anguille reservoirs, consisting of high permeable quartz and carbonate shallow marine sands.

Due to the excellent reservoir quality and aquifer strength, no water injection is required. Pressure support is through natural water drive and produced water is treated before disposal. High quality sweet crude (40 API) from the Madiela and Cap Lopez reservoirs is mixed with the slightly sour hydrocarbons from the Azile and Anguille reservoirs. For lifting and export, all crude is currently blended as part of Oguendjo blend.

In late 2009, Perenco took over the operation from Marathon. Perenco, present in Gabon since 1992, has been actively expanding its business in recent years and has been able to improve the overall uptime of the facilities.

One equity
Perenco, Tullow