Anglo African investigates water injection at Tilapia

The AIM-traded company said that on commencing drilling of TLP-103, TLP-101 - which was producing around 30 barrels of oil per day (bopd) at the time, was taken offline due to the proximity of the flare to the drilling apparatus.

It said it had now upgraded and relocated the flare to enable production from TLP-101 to continue during drilling.

TLP-101 had been brought back into production, and had now produced an average of 55 bopd during a two-week test period.

During the downtime, the firm said it engaged a specialist reservoir engineering company to conduct a full review of wells TLP-101 and TLP-102, which followed on from the stimulation exercise performed on well TLP-102, successfully conducted earlier in 2018.

The results of those studies had shown connectivity between the two wells, the board claimed.

Due to that connectivity, the reservoir engineering company had recommended using TLP-102 as a water injector to enhance production from TLP-101.

Studies of the strategy by both the company and the specialist reservoir engineering firm predicted that using a water injection system could lead to a rise in production from TLP-101 to up to 400 bopd.

Anglo African said it was now obtaining estimates for the cost of the work, and assessing the commercial viability of this project.

“While the recent focus of news from the Company has rightly been on TLP-103C and the very successful drilling campaign, we have also been working methodically on the other two wells at the Tilapia site,” said Anglo African Oil & Gas executive chairman David Sefton.

“TLP-101 being taken offline for a while provided a perfect opportunity to run tests that would not ordinarily have been possible.”

Sefton confirmed that following the tests, TLP-101 was successfully brought back on line and at rates of production which were “materially more” than those at which that well had produced over recent years.

“However, the very interesting result of the testing and the excellent work by the reservoir engineering company has been to come up with several interesting and innovative ideas which have the potential to make TLP-101 produce at levels that would generate significant income for the company.”