Ann: Dorado-1 Drilling Update, page-20

ZZ

Update seems 2b good. Noticed that the first time around they didn't mention 'fluorescence' which comes from crude Oil & then the Wireline log results mentioned 79.6m net column with 49.6 API light oil. So could b anything ie gas/cond or oil.

Their resistivity tool in the LWD assembly gives a good indication of change in mud properties when they drill thro' water bearing sands or HC bearing sands. As soon as the res drops then they know they've hit water. So logs need to confirm the water contact as well.

Porosity at this updip crestal location was estimated at around 18% by Finder which is why the gas is getting flushed out easily, still they need WL logs to confirm that. At Roc-1 porosity was around 10%.

The Res data with the gas readings on the chromatograph (C1 to C5) for the realtime data interp is all they can look at for now, b4 full set of logs is run for fluid sampling, sidewall cores, mobility etc. iMO we will have to wait till Fri or Monday for the compelte WL log results on the drilled section.

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Drill progress was good.
Another 30m to TD so should start logging sometime later tomorrow in my view. Total openhole section to b logged is apprx 606m from 4044 to planned TD of 4650m.