RE: PEL94 Farm-out20 Feb 2025 16:23
Seems like there is hope for very high porosities for Marula (and therefore most likely the other plays in the licence which are all similar age ie Maastrichtian). High porosity means high permeality which means good oil flow into well and high oil production per meter reservoir. Low permeability seem to be one of the problems with the Shell discoveries in the Orange basin.
Note that the Marula prospect has an overburden of only 1500m or so vs Shells Graff Discovery of about 2500m. More overburden will compact the reservoir sands more and lower porosity and permeability.
The very exciting thing about GBPs PEL94 is the number of same age Maastrichtian plays so that if we hit oil in Marula with good reservoir properties then there is every chance many of the other prospects come good also as long as the trapping mechanism works (Marula trapping mechanism is special as it onlaps onto sea floor high to the West).
N
«Using the log data from the nearest offset well (2012/13-1), which has a similar-aged and type of sandstone reservoir to Marula, to perform porosity and fluid substitution analyses. These demonstrate that if this sandstone was increased in porosity from that seen in the well and charged with oil, then the resulting AVO anomaly matches that seen at Marula. This allowed the assumed porosity at Marula to be increased, with the impact of further increasing prospective resources.»
https://globalpetroleum.com.au/wp-content/uploads/2023/03/23-03-27-GBP-RNS-PRs-PEL94-Marula-2023-Final.pdf
«The Ugab River is located in Walvis Bay and has provided the sedimentary entry point in to the Walvis Basin since the late Early Cretaceous time. This river has its source in the South African plateau of the Congo craton and Damara belt and crosses the marginal bulge, a conspicuous large-scale feature, close to the outcrops of the 132 to 125 Ma Etendeka flood basalt [4]. Interestingly, the Etendeka volcanic province provides only ~4% of the present day of the sand in sandy beaches of the Skeleton Coast [1]. From the Murombe well result, it is likely that longshore drift has provided a clean-quartz-rich sand into the Walvis Basin since the late Early Cretaceous».
https://www.researchgate.net/publication/320615183_Hunting_turbidites_in_the_Walvis_Basin_offshore_Namibia
Sign In
Follow the stocks
