Bulletin

El Paso changed the pigging schedule for Line 1102 from Plains to Dumas; see the bulletin board for operational details and capacity effects. It also postponed to an unspecified later date, pending delivery of critical parts, a total shutdown of the Window Rock Station that had been planned for Thursday (April 24). However, Window Rock’s A Plant only was down for Department of Transportation inspections and gas cooling equipment tie-ins Thursday, with the 7A turbine remaining down through Friday. This work, in combination with ongoing maintenance at Flagstaff Station and on the Window Rock 2B turbocharger, will reduce capacity of the North Mainline by 160 MMcf/d Friday, by 110 MMcf/d Saturday, and by 26 MMcf/d Sunday through Tuesday.

A Williams corporate spokesman said Thursday a Kern River bulletin board report, saying Jonah Field equipment problems had caused restrictions on field throughput to the Opal Plant operated by affiliate Williams Field Services, was in error. “There was a nominations snafu,” the spokesperson quoted a WFS dispatcher as saying, but no equipment problem. The plant was processing about 650 MMcf/d Thursday, which was pretty typical throughput, he said. Total Opal capacity is 730 MMcf/d.

The Department of Transportation’s Office of Pipeline Safety(OPS) has issued an industry-wide bulletin advising operators andowners of gas transmission pipelines to review their monitoringprograms and operations for detecting the presence of internalcorrosion on their systems.

After advising on its bulletin board Monday that it wasmonitoring conditions for the necessity of an OFO, Florida GasTransmission issued an Overage Alert Day notice Tuesday due to highmarket-area demand. The notice applies to the system east ofStation 12 (Santa Rosa County in the Florida Panhandle) and carriesa 4% tolerance for negative daily imbalances. The pipeline willdecide this morning whether to extend the notice through today’sgas day.

Mojave Pipeline reversed an earlier bulletin board posting (see Daily GPI, June 16), emphasizing that itwould “not” shut in part of its West Lateral Thursday and cause theshut-ins of “17Z”-labeled interconnects with Chevron, Mobil, Shell andTexaco. However, Mojave said, a maintenance shut-in of the Oxy 17Zinterconnect was to proceed as scheduled Thursday and today.