dougal6626 Aug 2018 18:39
Sorry for the delay but I have more time today to explain in detail so here goes..
We know they drilled below the 301 and encountered an unexpected sand body causing a pressure spike..
2 mins 55 secs
‘The horizon at 3375 looked interesting, you have to drill deeper than that to allow the logging tools to cover the whole depth, we decided we would drill deeper still to 3550m’
4 mins 53
The two sands we drilled through below the 310 which were tentatively being analysed as being ‘middleised Isongoan’ aged both show significant gas flows as we drilled through them and reservoir fluid samples collected mixture of water, condensate and gas in the three samples that we took.
IE4 Well - 6 minutes
Its fair to say from the IE4 location, maybe you are familiar with the IE3 location that the drilled in mid-2010 and the backup location was unanimously some time ago by all the upstream partners, to date of the 17 wells we have drilled 14 have been hydrocarbon bearing. The analysis data have identified about 10 additional prospects of which the IE4 is one. From seismic geological perspective there’s not much practical difference between the sand bodies whether its drilled or undrilled which suggests the IE4 is hopefully also condensate bearing and the fact was chosen in part because of the broad correlation between the sands of the IM3 location and the IM5.
Sub 310 - 7 mins 24 secs
The sub 310 sand horizon tentatively being identified as being middle isongo provides some new data and opens up the possibility of the middle isongo and the deeper interests on the reservoir. The main fact there is the existing prospects as well as opening up new leads.
Transcripted 10 mins 43
You have to collect all that data once it’s finished analysed and then its entered into your geological and reservoir model and then on the basis of that remodel the, the erm, the, the entire field or least the (interruption in the background ‘yeah’ cough, cough) or the field where we have er, erm, or the field where we have petroleum, so that’s not a, not a, sort of exercise.. that will take, and it will take a few weeks to analysis all the data before you start imputing it into the models. Once you’ve run the model you’ve then have to interpret you have to analysis the results.
11 mins 40 secs
For those that have just joined the call, and there’s been a surge in parcipitants I think the message we are trying to communicate is that hydrocarbon bearing zones encountered in the deeper middle isongo sand do contribute to the reservoir and resources at this location but its way to early at this stage and depends on the ‘?’ of the well logged, the well pressure and the reservoir fluid samples in the geo engineering model. What’s probably more interesting is that it does seem to provide some support that the middle isongo prospect identified does have legs and that there may be large volumes of prospective resources in the licence than currently thought.
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