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Eco (Atlantic) Oil & Gas has announced that its shallow water Gazania-1 well within Block 2B offshore South Africa did not encounter commercial hydrocarbons. The well was the fourth one to be drilled this year in the Orange Basin following Graff-1 (Shell), Venus-1 (TotalEnergies) and La Rona-1 (Shell). Gazania-1 is the only disappointing one so far. Gazania-1 was considered to be a near-term low-risk well, and its prospect’s size had best estimate prospective resources of 300 million barrels. More importantly, the well had a 60% chance of success and targeted an updip section of the already discovered A-J reservoir, along with overlapping potential reservoirs. “Gases normally associated with light oil were encountered throughout the drilling of the Gazania-1 well. This, in our view, confirms the active hydrocarbon system, proven by the A-J1 discovery well in 1988, extends to the part of the basin where the Gazania-1 well is located. Further seismic interpretation will likely lead to the definition of viable areas for trapping downdip of Gazania-1 closer to the 1988 oil discovery A-J1,” Eco Atlantic COO Colin Kinley said in a statement. But this is just the beginning for drilling in the Orange Basin, which straddles both Namibia and South Africa. In Namibia, Shell is about to resume drilling on PEL 39 where it has already discovered oil & gas earlier this year at Graff and La Rona. The Deepsea Bollsta has been contracted for the campaign set to start by the end of 2022 and last for a year. Meanwhile, TotalEnergies is expected to start appraisal drilling soon around Venus in Namibia which could be the biggest African discovery ever made. In South Africa, the French is also planning several key exploratory wells in 2023 and 2024 on Block 5/6/7 and DWOB. Meanwhile, Eco Atlantic itself will be part of another exploratory drilling campaign next year on two wells within Block 3B/4B, operated by Africa Oil Corp and where the un-risked prospective resource is estimated at over 3bn barrels of oil and liquids and over 1.3 Tcf of gas.
Invictus Energy has reported fluorescence end elevated gas shows of up to 65 times above background levels in the Upper Angwa primary target of its Mukuy-1 well onshore Zimbabwe. The well is yet to reach total depth and has confimed a working conventional hydrocarbon system in the Cabora Bassin. “We still have several hundred metres of drilling through our primary targets with additional potential, which will be followed by a comprehensive wireline logging programme to evaluate results, with the aim of confirming the presence of moveable hydrocarbons in multiple zones,” said Scott Mcmillan, Managing Director of Invictus Energy. The company and its drilling contractor, EXALO Drilling, have encountered a few technical issues during the campaign that have slowed down drilling progress. However, a recent changeout of the downhole drilling motor has allowed operations to continue and the Exalo 202 Rig will now recommence drilling through the primary targets. What’s at Stake at Cabora Bassa? Thought to potentially be the largest undrilled structure onshore Africa, the Mukuyu pospect is subject to intense scrutiny for its potential to transform Zimbabwe’s energy landscape. The prospect is being drilled amidst favourable market conditions and a growing appetite for gas in Zimbabwe and Southern Africa. The Mukuyu Prospect alone is estimated to contain 20 Tcf of gas and 845 million barrels of conventional gas / condensate (gross mean unrisked) across 5 horizons.
