RE: Seismic Data25 Jan 2025 13:07
Jt 2017
In my opinion, the recent anchois 3 well result and the Rkz will result in a re mapping of the remaining prospects in each the licences, for different reasons.
Anchois 3 found gas in the B sands, no mention of gas in the A sand and the C, M and O sands were water bearing when they had expected to be gas bearing. The C, m and O sands were deeper than expected and hence were encountered below the gas water contact. The expected depths of reservoirs are first determined by mapping a prospect in seismic time and converting such time depths to meters based on the actual depths of the reservoir in anchois 1 and 2 wells compared to the seismic time depths at the well locations. All very good and standard practice, except it did not work in anchois 3 . The most likely reason in my view is that somewhere in the anchois 3 well the geology of some horizons was different than expected and such geology had a different actual thickness compared to its expected thickness from seismic. While the well results are clearly very disappointing, the information gained is very valuable as it will enable all the other prospects in the licence to be re evaluated on the basis of this new information. Some prospects may get better, and some worse. In addition, the anchois 3 well results will also result in the seismic spectral decomposition analysis which was used to identify gas water contacts, prior to drilling, to be recalibrated based on actual gas water contacts and and hence more accurately map other prospects in the licence .
I expect this work is underway, and hopefully near completion by both chariot and enog.
The higher gas prices in Europe are key to making the smaller anchois 3 well economical.
Jimmy