London-listed Anglo African Oil & Gas has found 12 metres of oil in the Djeno horizon, at its TLP-103C well, it announced on January 29. The company said it would move on to drill a new well, TLP-104, with the purpose of bringing the Djeno into production – but that this would be drilled with a new rig. This next well will also test further potential reservoirs, in the Djeno and Vandji structures. The company is working on the Tilapia licence in Congo Brazzaville.
This recent announcement brings the total amount of oil discovered at the well to 56 metres. The well also found a 26 metre oil column in the Mengo formation, with another 13 metres in new horizons, between the R2 and Mengo, with five metres in the R2 reservoir.
The TLP-103C reached a total depth of 2,683 metres on January 26. This was followed by wireline logging. Results revealed the 12 metre column, with another four-metre transition zone with a high shale content, of Neocomian age. A number of other potentially oil-bearing intervals were also found.
The TLP-103C will be plugged back to the Mengo formation, which will be flow tested and produced. The company will also upgrade topsides facilities and consider pipelines to an export terminal, in Pointe Noire.
Following the drilling of this well, the Congolese regulator has provided a letter of intent (LoI) confirming that the government intends to provide Anglo African with a new licence, running to 2042.
Finding oil with the first attempt is an “excellent outcome”, Anglo African’s executive chairman, David Sefton, said. “While this well will produce from the Mengo and R2 rather than the Djeno, we have now encountered oil in all the targeted horizons, with a total combined oil of at least 56 metres, including a combined 44 metres of oil in both the Mengo and R2 and across additional discovered reservoirs.”
Bringing TLP-103C into production will increase cashflow from the licence, with Sefton saying the field would begin generating cash in the near term. The company will now press ahead with plans for full field development on the licence.
The TLP-104 will go on to drill a deeper Djeno sandstone reservoir. Work will be carried out with a new rig, a decision driven by safety reasons, Anglo African said. The original rig was provided by SMP Drilling and there were a number of problems during drilling, leading to stops and starts.