NuTech & Sandjet8 Aug 2024 02:06
@F & M. You asked what PG meant by
“Positive results from MOU-3 could potentially transform rigless testing strategies “.
I suspect he is talking about identifying commercial potential that would not be realised using a conventional testing programme.
For the information of those who can only criticise others without providing anything useful themselves, I must stress that this is only speculation on my part. During past presentations, Paul has in passing mentioned the presence of 'unconventional gas', without expanding upon what that means. All of the current boreholes have demonstrated near-continuous biogenic gas shows while drilling, in some cases over intervals of hundreds of metres. These shows are not definitively associated with obvious reservoir strata. I suspect that these shows are the cumulative result of many thin reservoir beds, whose thickness is below the resolution of conventional logging - probably less than a metre. Such shows have also been recorded in the logs of many older pre-PRD wells including GRF-1, TAF-1X, MSD-1, KDH-1, TFR-1, DGR-1 & DGR-3 - these were all seen as being non-economic, since using existing technology it would not be possible to identify or accurately perforate such thin reservoirs. Perhaps all these previously-tested prospects may now prove to have economic accumulations of gas.
PRD are now using a combination of technologies that have never before been used in Africa - NuTech analysis can identify potential reservoirs down to perhaps 25cm, and Sandjet can accurately locate and perforate them. The current MOU-3 testing programme is looking specifically at such thin formations within the TGB6 sands (which extend across to MOU-1). I posted a few weeks ago that such thin beds can extend over huge areas, and if the poroperm is adequate, could be the source of surprisingly large volumes of gas - Caterham7 kindly joined the conversation and concurred.
For MOU-1, the 6th July 2021 RNS stated that elevated background gas shows were present from 605m to 1487m, a depth of 882m. Assuming this show was the result of numerous thin beds, even if the net : gross was only 5%, that still gives 45m of potential pay. Even thin reservoirs in the Rharb basin have flowed at a rate equivalent to 1mmcfgd or more per vertical metre, so that is a huge amount of potentially commercial gas that has been previously overlooked. The old saying 'big fields get bigger' is not due to discovering more hydrocarbons, but improved recovery due to better technology.
If these suppositions are correct, there is a great deal of upside potential that could be unlocked in both Morocco & T & T using these new technologies in current and future prospects - testing of the MOU-3 TGB-6 sequences will be the proof of the pudding. Yesterday Malcy said "there are very substantial expectations around". For once, Malcy is correct.