Offshore staff
TORONTO – Eco (Atlantic) Oil & Gas has issued an update on exploration of the Orinduik block offshore Guyana, led by operator Tullow Oil.
The partners, which also include the TotalEnergies/Qatar Petroleum joint venture, TOQAP Guyana, are looking to select their next drilling targets this summer, following completion of seismic reprocessing.
Drilling could then resume in 2022.
Samples from the Joe and Jethro discovery wells, both of which encountered biodegraded heavy oil in the lower Tertiary, have undergone further geochemical analysis.
In parallel, mapping of thermal maturation and additional basin modeling has improved understanding of this Tertiary section in the northern quadrant of the block and into the neighboring three Hammerhead discoveries in the Stabroek block.
Repsol’s 27°API light oil in the Carapa well, drilled updip and inboard of Orinduik and within the Cretaceous section, has also been reviewed.
In addition, detailed mapping continues of the depositional channel systems through the basin, supported by data from each new well drilled regionally, and from prior logs.
Reprocessing has sharpened identification of the reservoirs and traps created by the slope channel systems, terraces, and resultant ponding.
Finally, the partners have completed studies of depo-systems to map hydrocarbon travel updip onto the Orinduik terraces from the same source rock feeding the reservoirs within Stabroek.
06/18/2021
