Invictus Energy (ASX:IVZ) discovers additional elevated gas shows and fluorescence at Mukuyu-1 - Kalkine Media

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 Invictus Energy (ASX:IVZ) discovers additional elevated gas shows and fluorescence at Mukuyu-1
Image source: Company Website


  • Invictus Energy has encountered additional elevated gas shows and fluorescence after Mukuyu-1 was deepened to 3,923 mMD
  • The results confirmed the potential of the Upper Angwa formation over a 900m gross interval
  • Primary Upper Angwa target formation is thicker than expected from pre-drill estimates, which bodes well for future prospectivity in the basin, as per IVZ.

In the latest announcement, an independent upstream oil and gas exploration company, Invictus Energy Limited (ASX:IVZ), revealed that several reservoir units with elevated gas shows and fluorescence until total depth (TD) had been encountered upon deepening the existing Mukuyu-1 wellbore to 3,923 metres Measured Depth (mMD). This result further confirms the potential of the Upper Angwa formation over an approximately 900m gross interval.

Currently, the Mukuyu-1 well is drilled in Invictus Energy’s 80%-owned SG 4571 licence in Zimbabwe’s Cabora Bassa Basin.

Image source: Company update

The need for a sidetrack well (Mukuyu-1 ST-1)

According to the latest assessment, the existing 8½” wellbore section needs to be lugged back, and a sidetrack is required to be conducted from the 9⅝” casing shoe (at about 2,020mMD). With these measures, Invictus will get a chance to obtain a valid fluid sample and the ability to suspend the well for future flow testing.  


 Image: © 2022 Kalkine Media®

Sidewall core obtained from 3,168mMD showing fluorescence – primary fluid sampling target

What’s in the offing?

Invictus will engage in drilling the sidetrack well (Mukuyu-1 ST-1) to a slight updip location to the north of Mukuyu-1, with a lower mud weight and solids content mud system (around 1,500psi reduction in overbalance). This is expected to improve the logging conditions and increase the percentage of the acquiring of a fluid sample.

Upon the completion of sidetrack drilling, the well will be logged, including wireline formation testing. The final results will be released when obtained. Finally, the Mukuyu-1 ST-1 well will then be suspended for potential future testing.

Management commentary

 Image: © 2022 Kalkine Media®

IVZ shares were trading at AU$0.270 apiece on 24 November 2022.


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