The latest Investing Matters Podcast episode featuring Jeremy Skillington, CEO of Poolbeg Pharma has just been released. Listen here.
Thanks, yes of course, if we as individuals or companies do not learn from mistakes then we are not trying to improve. Subsurface is always extracting information from drilling from testing, personal accounts even to constantly refine our models. I worked as a mudlogger on Talisman's exploration wells onshore Trinidad (just north of Ortoire Block). And literally ecerything that could have gone wrong on those wells, went wrong...and I learnt a lot. I hope Talisman did too..
The Northern or Caroni Basin in Trinidad was at a shallow water or shelfal setting while the Herreras were being deposited in Southern Basin. So apart from not having source rock in Northern Basin, there aren't Herrera turbidites there. I believe you may be mixing up the term 'Northern' with the Northern play by BHP in deepwater Trinidad - very different place. This is basically the offshore equivalent of the Central Range of Trinidad. They have discovered about 7Tcf of gas in Pliocene and Late Miocene turbidites.
Turbidites have been sought after for a few decades now but are much much betfer understood now due to extensive field work by academics integrated into great 3D seismic surveys. One only needs to look at the discovery bonanza in Guyana and Suriname to realize that turbidite plays are very much prolific. On Social media i have made a series of posts titled 'time travelling with turbidites' which feature most of the well known turbidites to exist in Trinidad & Tobago. Have a look if you can.
Yes rhe Globorotalia fohsi lobata and fohsi fohsi zones (Gr7bc) as you would have seen from my social media posts and images on Cascadura, was penetrated by the CAS-1ST1 well on the steep southern forelimb of the Penal Barrackpore Cascadura Balata Anticline.
The depositional modelling of the Herreras have been attempted by various geos. Resoundingly the turbidite fairway parallels the SW-NE trending anticlines and the sands demonstrate thinning onto the crest of some folks suggesting theycare syn-kinematic in nature. There are some areas with local imput from northerly Brasso and Cunapo fans bringing coarser almost conglomeratic material into the foredeep. The restoration work in Penal Barrackpore and simulated turbidite flows show this in my MSc thesis that I completed at Leeds, UK.
Not sure what's the Bedforshire reference though..lol
That presentation was at the Houston Geological Society International Dinner. I was working for Petrotrin with a consultancy firm in Houston at the time. They were awarded the contract to assess the Mid Miocene and older formations in Petrotrin's recently acquired North West District 3D onshore Trinidad.
The Northern Basin or Caroni Basin is the northern half of Trinidad and it lacks source rock - Naparima Hill. This is proven by drill bit. There are a few key theories put forward to explain this.
Source rock occurs within the Central Range and southward in Southern Basin towards Venezuela mainland.
At the time of my talk the government was promoting its onshore bid round. And my 2010 MSc thesis on the Herrera sands in Penal Barrackpore tied perfectly into this. I published this in 2011 at AAPG ICE in Milan. Hence why HGS asked me to do a talk. The government had roadshows coming up a few weeks later in Houston as well.
After finishing the mapping for my thesis in 2010, I returned to Petrotrin and continued the mapping across the rest of Southern Basin. In the Barrackpore trend alone there were 52 exploration prospects identified. Petrotrin management at the time didnt have the stomach to take on the risk. Hence their last onshore exploration wells was drilled in 1998. Some of that acreage was taken away from them and later put out in the Onshore Bid Round. And finally one of the 52 prospects has been drilled - Cascadura.