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Empyrean Energy said that Conrad Petroleum reporting better-than-expected drilling results from its Tambak-well, but miner had to shut the well for safety reasons. The company also said that efforts to resume drilling had failed to flow gas to surface from the well due to heavy formation damage.
While preparing for a drill stem test across the intra-Muda reservoir, an inflatable open hole bridge plug, used to isolate the gas-bearing reservoir for testing, failed. But during operations to recover the packer, the well started flowing natural gas to surface and was immediately shut in for safety reason.
The well was killed using heavy mud containing barite, and conditions to resume drilling, but after two separate drilling attempts, the flow gas to the surface failed to take place due to the heavy formation damage from the kill mud.
'A valid flow test at Tambak-2 without kill mud being required due to the packer failure would have been desirable given the excellent quality reservoir seen on logs and the 33 feet of net gas pay,' the company said.
'While the unsuccessful DST caused by the formation damage is disappointing, the well results are extremely encouraging for the development of the Mako gas field. Petrophysical analysis suggests any DST testing would have yielded similar high flow rates to the discovery well,' it added.
At 10:18am: (LON:EME) Empyrean Energy PLC share price was -1.16p at 8.85p