Matra reports successful acid treatment

Matra Petroleum plc says that the Arkhangelovskoe - 12 discovery well on the Arkhangelovskoe License in Orenburg, Russia, has been successfully treated with acid to remove formation damage.

The acid treatment was completed on 21st May and followed re-perforation and retesting of the well. The well cleaned-up and produced strongly after the treatment and was flowing at a stabilised rate of 540 bopd on a 5mm choke with a flowing wellhead pressure of 1000psi on 25th May. A series of flow tests were then conducted using a series of increasing choke sizes.

The last of these flow periods was on a 7mm choke and the well flowed at a stabilised rate of 820 bopd with a flowing wellhead pressure of 650psi. The well has now been shut-in at the start of a 24 hour pressure build-up survey. Data acquired during this test combined with the pressure data will confirm the full well potential under natural flow and with artificial lift (pump). The well will be returned to production at the completion of the pressure survey.

Source : http://www.matrapetroleum.com/