Pigging

Gulf South has made a couple of small changes in the scheduling of meter outages during in-line inspection pigging on Index 287 in the New Orleans area that began Tuesday and will continue through Aug. 25 (see Daily GPI, July 26). See the bulletin board for details.

Florida Gas Transmission ended Friday an Overage Alert after a two-day run.

While it investigates the results of just-completed pigging of its 42-inch diameter Expansion pipeline, Gulf South is limiting capacity in the Expansion Area 16, 17 and 18 Receipt Groups to 950,000 Dth/d until further notice. Gulf South also said it shut in four interconnects due to the work. TGT said the Gulf South restriction has the potential to impact its lease capacity on Gulf South at four locations.

Southern California Gas declared a high-linepack OFO for Friday, setting the tolerance for positive daily imbalances at 10%.

Trunkline extended a pigging outage of the Quicksand Creek Lateral through Friday; it previously had been scheduled to be completed Wednesday (see Daily GPI, March 3). Four meters are shut in during the outage.

Sea Robin Pipeline reported completion of pigging operations on its mainline from the offshore Vermilion 149 platform into Erath Station in South Louisiana, and said Wednesday the onshore liquid separation facility operated by Devon Energy is no longer restricting flows (see Daily GPI, May 10). Normal operating pressures have been restored, Sea Robin said.

Gulf South made another change in the pigging schedule for its 12-inch diameter Index 131 from Lafayette to Weeks Island in South Louisiana (see Daily GPI, Jan. 23). The work, which began Jan. 18, has been extended through Friday of this week and will resume for one day next Tuesday.

Tennessee has scheduled about 12 hours of pigging activity March 8 on part of its Blue Water System offshore Louisiana. Specifically, Line #523M-100 will be pigged from Vermilion 245 to Ship Shoal 198. Only a Shell Oil meter (#012435) will be shut in during the work, but other meters in the area likely will experience higher than normal pressures, Tennessee said.

The completion date for a complete pigging of Matagorda Offshore Pipeline System has been extended through Tuesday; the project was originally scheduled to finish Sunday (see Daily GPI, Nov. 13).