The temporary bridge plug that Energy Resource Technology, LLC (ERT), and subsidiary of Talos Energy, used to stop a natural gas and condensate leak on their Well #2 late last week is holding, and the well has been sealed, the Bureau of Safety and Environmental Enforcement (BSEE) said Monday.
A bridge plug, which can be either permanent or retrievable, is a tool that is used in downhole applications to isolate the lower part of the wellbore, allowing it to be temporarily or permanently sealed from production.
“We are pleased to report that the well control event has been successfully resolved without injury and with a very limited release of hydrocarbons, which we believe to be a small amount of natural gas and less than 10 barrels of light condensate over the course of the event,” Talos Energy President and CEO, Tim Duncan, said.
Additional work by ERT remains before the well is permanently plugged, BSEE said, and that work will be reviewed and approved by the BSEE Houma District engineers. BSEE will also investigate the reason for the loss of well control, and make recommendations to improve the response to well control events. The U.S. Coast Guard will also work closely with ERT to plug the well permanently with cement.
Initially, ERT used drilling fluids on the leak after a loss of well control was observed early last week at Well #2 Ship Shoal Block 225, Platform B, which is located about 74 miles southwest of Port Fourchon, Louisiana. The leak initially allowed condensate consisting of a light oil and water mixture to cover the surface of the water. However, no sheen was detected last Friday after ERT stopped the leak July 11. The condensate evaporated overnight Thursday, and a July 13 flight over the site confirmed that no sheen was visible.
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