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Tuesday, January 24, 2023
Invictus Energy has provided an update on operations at its 80% owned SG 4571 license in Zimbabwe’s Cabora Bassa Basin. The Mukuyu-1 evaluation is complete and Phase 2 campaign planning has commenced.
HIGHLIGHTS
Managing Director Scott Macmillan commented: “The Mukuyu-1 and ST1 drill campaign has been a great success, identifying 13 potential hydrocarbon bearing zones across the Pebbly Arkose and Upper Angwa formations. Significantly, a combined 225 meters of gross potential hydrocarbon bearing zones have been identified in the primary target Upper Angwa, which still contains deeper untested potential.
“This is an outstanding result and virtually unprecedented for the first well in a frontier basin, establishing a new petroleum province and substantially de-risking the Company’s wider acreage in the Cabora Bassa Basin. “We are still interpreting all the data, with results to be integrated into the seismic data and basin models to guide future well locations and exploration prospect selection.”
Mukuyu-1 ST1 identifies 13 potential hydrocarbon bearing zones
Following completion of operations of the Mukuyu-1 ST1 well, a total of 13 potential hydrocarbon bearing zones were interpreted in the Pebbly Arkose and Upper Angwa formations. Of note is the primary target Upper Angwa formation, with 11 identified potential hydrocarbon bearing zones totaling a combined 225 meters. All potential hydrocarbon bearing zones have been isolated and plugged and the Mukuyu-1 and ST1 wells have been left in a safe condition.
Mukuyu appraisal and Phase 2 drilling program planning commences
Rig 202 is warm stacked at the Mukuyu-1 well location to allow for maintenance and upgrades prior to recommencing drilling.
Laboratory analysis of sidewall cores acquired during logging, and drill cuttings and mud gas samples acquired while drilling will provide further calibration of the wireline and the geological model once completed. These results will be integrated into the seismic data and basin models to guide future well locations and exploration prospect selection.
The company is now assessing the forward work program and a range of targets for the first well in its Phase 2 drilling campaign, including Mukuyu-2 and Baobab-1, as well as other promising exploration prospects identified across the wider Cabora Bassa acreage.
The timing of the forward exploration and drilling will be determined following the completion of long lead and well services tendering exercises which are commencing imminently.
Cabora Bassa Basin petroleum system pre-drill vs. post drill summary
The pre-drill interpretation and understanding of the Cabora Bassa Basin was a gas prone petroleum system with potential seal and charge vs trap timing (containment) risk.
Post-drill, results from the Mukuyu-1 and subsequent sidetrack have proven a working hydrocarbon system and the presence of gas-condensate and potentially light oil, evidenced from elevated mudgas (C1-C5 components), fluorescence and wireline log interpretation, significantly de-risking remaining prospectivity in the basin.
The primary pre-drill risks of seal (presence and effectiveness) and source rock (presence and quality) have effectively been de-risked with the intersection of multiple competent seals and presence of gas filled sands indicating the preservation of reservoired hydrocarbons, significantly reducing the historically high risks of containment. For the full release with more data visit Invictus here.
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