iam, page-24

Hi everyone

Maybe I'll have a bit more luck on this thread. My photo kicked the bucket over on the other one:)

Just adding to Ya's great posts and links - now I'm back home I can look more closely at the info regarding the action at the A#1 site over the week.

There has been some great input on the MEO forum and, hoping not to duplicate too many posts, will try to add a comment or two.

It is evident that the gas encountered in the Withnell formation is a separate zone to the targeted area.

If we look at the Artemis Report No.5 it gives a clue but the Baillieu Report gives us more of an indication:

Thanks gassy for the ECB report ref here

Reading this report and comparing it to the Carnarvon Basin litho-column from Geoscience Australia (similar to and Ya's above):



we can see that the Withnell formation is 200-300m above the target area. This means that there would be a separate top and bottom seal for Withnell. This would probably be Miria Marl and Toolonga. For the Calypso and Legendre reservoirs the Muderong Shale/Dingo top seal and the Athol base will provide the seal. The Muderong works well in other parts of the basin - it is the base seal we need for Artemis to work

If we translate this on to MEO's seismic:-



The two areas are evident and can be seen at the varying depths.

Ya did post in the announcement thread that The 'Withnell formation' is an overpressure zone in the NWS & has caused issues in the past on other wells eg: West Tryal Rocks & a few others. I have been trying to find references to any previous high pressure encounters and it will be interesting to see if there is enough recoverable gas in commercial quantities in this unexpected zone.

The main play is yet to come over next few days and knocking the crust off Calypso is tantalising imminent but the Withnell encounter has meant that the smaller bore has been started earlier than expected and a slower, safer progess will be the order of the day.

But MEO has taught us how to be patient.

#:>))