Anzon Australia Pty Limited (AZA), a wholly owned subsidiary of ROC, advises that the Basker-5 (B5) well workover has been suspended and the Ocean Patriot rig moved to the Basker-3 (B3) well workover.

The B5 workover programme was designed to isolate water production within the B5 well through the installation of a cement plug to isolate the lower reservoir sands. The production log acquired during the workover to confirm the source of water inflow showed a more complex combination of water and gas flowing within the well. The workover has been suspended and the isolation procedure is under review due to the results from B5 production log test.

As a result the oil acceleration benefits from B5 which, prior to commencement of the programme, were assessed to be approximately 800 BOPD, are currently uncertain.

Subject to further assessment of the log results, a revised B5 workover may be undertaken at the end of the current drilling campaign, which includes the B3 workover and the Basker-7 (B7) development well.

Tags: ROC Oil