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NWE 0.4¢

mentelle 1

  1. jocam9

    1,317 posts.
    The stratigraphic column on the NWE website shows the following stacked reservoirs in sequence below the Kockatea shale (the seal and source rock). They are the Dongara Sandstone, Wagina Sandstone, Carynginia Formation, Irwin River Coal Measures and High Cliff Sandstone. The column schematic also indicates that the Cliff Head oil discovery is from the Wagina Sandstone and IRCM though the accompanying blurb only mentions the IRCM as the target reservoir.

    I am wondering if ROC, in talking about the "top" of the reservoir is really talking about the Dongara/Wagina Sandstones only and that the IRCM was yet to come below the 1332 metre depth the well was at when it reported 52 metres of continous oil shows. If that is the case and there was also oil in the IRCM when they intersected it then do we not have at Mentelle a potentially far bigger oil column than discovered in either CH1 (5 metres) or CH 2 (28.5 metres)?

    Mentelle is supposed to be 2 kms from CH but is that 2 km from CH one or CH 2 bearing in mind that the bottom holes of the two CH wells were 1 km apart? What I am getting at is whether Mentelle is actually a satellite structure to CH as first thought or a separate field altogether. (Or does satellite and separate mean the same thing?) Given that the top of the Mentelle target reservoir was struck some 50 metres below the reservoir at CH 2 is that a good thing or a bad thing? For example does that support the theory that it might be a totaly separate reservoir? The NWE seismic map shows a fault separates CH from Mentelle.

    Lastly ROC putting its foot down on any further press releases to me is an encouraging sign. I think they are optimistic about the find and and want to be the ones to announce it tomorrow. But maybe I am just rationalising.

    Any geos out there with any ideas on the above or do I have to wait til tommorrow like everybody else? Blackgold, you can see why I can't sleep! Ah well a maybe a valium tonight.
    Good luck all, need to be close to the puta tomorrow! JBC

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