Tullow makes back-to-back discoveries in Guyana

Tullow Oil said today that its Joe-1 exploration well had opened a new “upper tertiary” oil play in the Guyana basin.

The well was drilled by the Stena Forth drillship, encountering 14 metres of net oil pay in high-quality oil bearing sandstone reservoirs.

Joe is the first oil discovery to be made in the upper tertiary and de-risks the petroleum system in the west of the Orinduik block, where a large number of tertiary and cretaceous age prospects have been identified.

Tullow and its partners will now evaluate data from the Joe-1 discovery alongside data from the Jethro-1 discovery announced in August 2019 and await the outcome of the Carapa well to determine the optimal follow-on exploration and appraisal programme.  

The non-operated Carapa-1 well on the Kanuku licence (Tullow 37.5%) is scheduled to commence drilling in late September with the Rowan EXL II jack-up rig.

Tullow Guyana is the operator of the Orinduik block with a 60% stake. Total E&P Guyana B.V.  holds 25% with the remaining 15% being held by Eco (Atlantic) Guyana Inc.

On completion of operations, the Stena Forth drill ship will depart Guyana and return to Ghana.

Angus McCoss, Tullow exploration director, said: “I am very pleased that we have made back-to-back discoveries in Guyana and successfully opened a new, shallower play in the Upper Tertiary age of the Guyana basin with our second well.

“The Joe-1 discovery and its surrounding prospects represent another area of significant potential in the Orinduik Block and we are greatly looking forward to the next phase of the programme as we continue to unlock the multi-billion barrel potential of this acreage.”


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