
Gulf Coast Western and its operating partner Alpine Exploration Companies have brought the Mary O Long-1 well blowout under control in the Mallard Bay marshlands along the southern coast of Louisiana, US.
The blowout occurred in the Lower Alliance Sand interval at around 12,420ft on 3 March. Workers lost control of the well during a completion operation.
The firms have restarted completion activities and production from the well is expected to commence in the next two weeks.
Located in state marshland waters off Cameron Parish, the Mary O Long No 1 well is a reentry of a proved oil and gas well drilled by Conoco in the 1980s, with several logged zones. Work was stopped at the time due to low commodity pricing and the need to build a production platform and pipeline.
The well flowed at extrapolated rates of 14.49 million cubic feet of natural gas a day and 545 barrels of oil a day.
Gulf Coast Western CEO Matthew Fleeger said that after re-entering the well, the company encountered even greater pressures than those experienced by Conoco 30 years ago.

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By GlobalData"We are pleased that Alpine was able to successfully get the well back under control and look forward to placing the well into production in the near future," Fleeger added.
Gulf Coast Western also anticipates to produce from the Planulina Sand located above the Lower Alliance, bringing the total production potential for the well to over two million barrels of oil equivalent.
Image: The Mary O Long No 1 well was a reentry of a proved oil and gas well drilled by Conoco in the 1980s. Photo: courtesy of Gulf Coast Western.