Repair

Florida Gas Transmission kept an Overage Alert Day in place through Saturday before ending it Sunday.

Australian producer BHP Billiton has begun assessing how to repair its Neptune tension leg platform (TLP) in the deepwater Gulf of Mexico (GOM) after discovering “structural anomalies” last week.

Tennessee declared a force majeure event Wednesday evening due to the need to repair what a spokesman called an “apparent” leak in a line near the Eugene Island 339C platform. The 339C meter and Eugene Island 315 and 316A platforms were required to shut in until further notice. Further investigation was under way Thursday afternoon, the spokesman said.

Florida Gas Transmission did not extend an Overage Alert Day beyond Tuesday.

Dominion reported completing repair work Thursday on Cornwell Compressor Station’s Engine No. 9 and said production in bubbles 3226, 3227 and 2207 can be resumed following notification to Dominion field personnel. However, a couple of hours after that posting the pipeline said it was encountering unexpected problems in returning the engine to service and that the production in those bubbles must remain shut in until the problems are resolved.

Southern California Gas took the #1 compressor at its North Needles Station off-line Wednesday to repair broken gears and the case on the unit’s air starter. The work is causing a loss of 150 MMcf/d of border receipt capacity at Needles until further notice.

ANR Pipeline said it must repair an engine at the St. John Compressor Station in Indiana in the Northern Fuel Segment (ML-7) that will reduce St. John west-to-east capacity by 115 MMcf/d (leaving 1,190 MMcf/d available) through Dec. 18. Based on current nominations, the outage could result in the curtailment of firm secondary and IT nominations, ANR said.

Thousands of residents in Buffalo, MN, were without natural gas service Thursday after problems with repair and maintenance work on CenterPoint Energy’s utility gas lines. Officials said it could be two days before the service is restored, the Associated Press reported. CenterPoint representatives did not respond to calls from NGI Thursday afternoon. About 200 CenterPoint Energy crews were working to restore the service, preparing to go to each home to turn gas meters back on and help relight pilot lights, local police told the Associated Press. About 5,500 residents were affected. City officials said the gas could be out for 48 hours or more, which is a concern because snow is in the forecast and overnight lows Thursday, Friday and Saturday are expected to be in the mid 20s. Plans were being prepared to house residents, particularly those in extended care facilities, who might need a warm location for the night.

Florida Gas Transmission said a third-party contractor damaged its Texas mainline near compressor station six, requiring one to three days of repair work. The line had been transporting about 300,000 Dth/d. FGT also declared an overage alert in its market area Tuesday with a 25% tolerance.