Wentworth Resources estimates that Tembo-1 appraisal well could spud in Q3 2018 subject to securing a partner according to its latest investors update.
According to the operator design and procurement activities for the drilling of an appraisal well of the Tembo-1 gas discovery, are ongoing concurrent with the farm-out process to secure an industry partner to participate in the appraisal programme.
Wentworth Resources believes that resource estimate for the Tembo Structure is 1.7 Tcf (unrisked P50) with the significant oil shows in the Tembo-1 discovery well also suggesting the potential for an oil case of 219 MMbbls (unrisked P50).According to Wentworth Resources the estimates are restricted to the Tembo structure and not the 2,500 sq. km. Tembo Block.
In the second half 2017, Wentworth said it planed to acquire a minimum of 500 km of new onshore 2D seismic data with the drilling of an appraisal well anticipated to occur in 2018 after the identification of a suitable drilling location based on the evaluation and integration of the new and existing seismic data.
The Tembo-1 well was drilled to a total depth of 4,553 metres into rocks of Upper Jurassic age. Natural gas and some condensate was recovered by modular formation dynamics testing (“MDT”) confirming the petro physical analysis of 11 meters of pay in sands of Cretaceous age.
Wentworth terms Tembo-1 as a milestone well for the Rovuma basin adding that an extensive amount of pertinent geologic data was collected which will have a significant impact on future exploration efforts in the basin.
Under the two-year appraisal period granted in June 2016, Wentworth became the Operator of the Rovuma Onshore Concession (“Concession”) and increased its participation interest in the Concession from 11.59% to 85% while State owned Empresa Nacional de Hidrocarbonetos (“ENH”) retains a 15% participation interest as a carried partner through to the commencement of commercial operations.