It is planned to drill at least two appraisal wells on the Doris oil discovery to evaluate and establish the size and potential of the discovery and also to provide the necessary data to obtain a production contract. These wells will be evaluated with coring, geophysical logging and testing. A further appraisal well may also be drilled if deemed necessary after evaluating the results of the first two wells.
Tethys also plans to carry out a 3D seismic survey over the Doris discovery and shoot additional targeted 2D seismic lines to firm up further potential in the area. Four separate bids to carry out the seismic work have now been received and the contract will be awarded later this week with the seismic planned to commence late May/early June.
In addition to the Doris oil discovery, Tethys has identified several other exploration prospects in the area, which appear similar to Doris and now that a hydrocarbon system has been proven at the deeper levels the risk on these prospects is reduced. The company’s ZJ70 rig Telesto is fully rigged down and ready for transportation from the AKD01 location to a prospect located to the south-west (named Dione) to drill the AKD03 exploration well.
Drilling is also planned on the Daphne exploration prospect further west. The AKD03 well is expected to commence operations in early May and is planned to target both the Cretaceous and Jurassic intervals where oil has been flowed in the Doris oil discovery, and also the deeper Triassic and Permo-Carboniferous intervals that have further potential. Further exploration drilling on the large surrounding Kul-Bas block is also planned.
The Doris prospect covers a most likely area of roughly 60sqkm, with some possible downdip upside potential in the upper reservoir zone.
