Hi All,Pebbly Arkose Fm.Little has been mentioned of the Pebbly...

Hi All,

Pebbly Arkose Fm.
Little has been mentioned of the Pebbly Arkose Fm. with the recent focus on the Upper Angwa side track drilling and logging possibilities. But SM did mention in the ASX 24/11/22's accompanying Webinar that this formation had "potential gas zones and potential light oil zones". The mud losses in this formation, while drilling the initial well, provides an insight into the potential for adequate reservoir parameters particularly porosity and permeability (excluding losses into fault zones).

For those interested, I've posted below a brief summary of my review into a comparison between the structural forms of the Pebbly Arkose and Upper Angwa Formations. What I'm trying to establish here is whether the area & vertical richness estimates for the Upper Angwa can be applied in a very ball park way to estimate any Pebbly Arkose Fm's gas / condensate and oil columns that may be found and thus their A$/S values. IMO this is the case and would also very likely lead to an under estimation of the Pebbly Arkose Fm's volumes and A$/S values. The calculation for the Pebbly Arkose Fm. would just effectively include it as an "upper" Upper Angwa reservoir.

I've also include a Slide (3) on my combined estimated Upper Angwa A$/S values, based on the area & vertical richness estimates, for a gas / condensate case with a net section of 180m (20% of 900m section IVZ has mentioned) and a net 25m oil column.

GLTAH
Cheers
VOGC