RE: Kuparuk...25 Mar 2021 11:45
Re probability, its the cornerstone of oil drills and 95% of investors don't have a clue how it works, some CEO's don't either.
COS is not really a chance of success, its a geological risk calculation, made up from a set of probabilities.
equally multiple horizons are a set of different probabilities as well.
I wrote a piece of COS and probability about 5 years ago and how misunderstood it is (look up monty hall and probability) re multiple sets.
A piece of work was done by a statistician about 10 years ago looking at COS and actual success. It came out that a 70% COS equally had a 90% success rate. 38% had a 50% success rate, but 20% COS had a less than 10% success rate.
The other factor re COS is that it determines every event as individual and unconnected, particularly multi horizon targets. However this often isn't the case.
It does not cover whether oil, concentrate, gas, water is found and certainly not whether finds are commercial.
This is just imo but there is probably a 90% chance of something flowing.
However that probably falls to 70% being oil - then maybe falling to 50% as commercial oil.
TBH i like those odds. :)
Re flow - again just imo, but less than 50 BOPD would be interesting but not exciting
50-150 BOPD would be a good solid result, considering this isn't a production drill re size of equip.
over 200 bopd would be very good indeed.