WEST PERTH, Australia -- ADX Energy has upgraded reserves at its Dougga gas condensate discovery in the Kerkouane permit offshore Tunisia.
This follows a re-mapping exercise, based on dual-sensor 3D seismic data acquired earlier this year. This revealed 300 m (984 ft) of updip potential from the Dougga 1 discovery well, which was interpreted to have intersected a 200 m-plus (656 ft-plus ) gas/condensate column.
ADX now estimated mean recoverable contingent resources at 234 bcf of gas and 50 MMbbl of condensate and LPGS (89 MMboe).
The company has commissioned AGR Tracs International Consultancy for an independent detailed development review and resource assessment. The aim is to establish the technical and commercial feasibility of developing Dougga once results have been incorporated from an appraisal well planned for 2011.
Dougga is in 328 m (1,076 ft) of water, 45 km (28 mi) east of Cap Bon in the Gulf of Hammamet.
ADX says the new analysis is particularly encouraging because of the potential 42% increase in the “high confidence” (P90) contingent resources case. This upgrade is largely due to major improvements in structural and stratigraphic definition using the 3D data set.
The 3D seismic interpretation also suggests that Dougga may contain a highly fractured Abiod reservoir, analogous to that encountered at the Lambouka structure in the same concession.
Interpreted fracturing and the additional Abiod section boost prospects for good reservoir productivity. The next well will therefore include a test to demonstrate commercial gas and condensate flow rates.
ADX claims that together, Dougga and Lambouka could provide a strong development project with combined reserves of over 500 bcf and 70 MMbbl of condensate.
ADX maps further potential in Dougga
ADX Energy has upgraded reserves at its Dougga gas condensate discovery in the Kerkouane permit offshore Tunisia.