Pig Trap
Pig Trap news and technical articles from Oil & Gas Journal. Search Pig Trap latest and archived news and articles
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Pressure isolation facilitates onshore, offshore maintenance
… for safe isolation procedures before beginning work on existing infrastructure. 4 Initial onshore use of the tool for a pig trap isolation on Vebundnetz Gas Aktiengesellschaft (VNG) roughly 7,000 km natural gas transmission grid in eastern Germany …
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NORTH SEA ESV PROGRAM IS FOCUS OF SUMMER WEATHER WINDOW
… moved six ESV's on its Brae Platforms A and B. On both structures, ESV's had originally been installed in the pig - trap areas close to wellheads. The new ESV's were installed under the platforms as near the top of the risers as possible …
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LIKELY CAUSE OF GULF ACCIDENT PINPOINTED
… the ARCO platform. The line was being cut to install a pig trap . Sonat, meanwhile, has paid $30 million to settle several ..... was no oversight of the contractors' activities. The pig trap was being installed below Sonat's 18 in. shutdown valve …
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EPNG fined $15.5 million; pipeline rehab ordered
… cleaning pigs on the system. -- Collect and analyze liquid samples for corrosive properties whenever a pipeline, vessel, pig trap , meter tube, or tank is opened on the system. -- Comply with gas quality guidelines that require monitoring of potentially …
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INDUSTRY BRIEFS
… Petroleum Co. Norway under its Ekofisk redevelopment program (OGJ, Sept. 7, 1998, p. 32). The platform served as a pig trap and metering point for gas being exported to Emden, Germany. Statoil said abandoning 2/4-S will trim 30 million …
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PIG-TRAIN ISOLATION DESIGN DEVELOPED FOR NORTH SEA ESV WORK
… blocked drain line, and the limited number of pig trap connections meant that the pig trap had to be drained via the door. Sampling of the ..... vent system to bring these pigs back into the pig trap . ACKNOWLEDGMENT Contributing to this article …
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MECHANICAL ISOLATION TOOL FOR ESD VALVE SERVICING UNDER DEVELOPMENT
… valves on the Beryl riser (two pig - trap isolation valves and one ESD valve ..... was not enough time to procure a pig trap closure with a suitable penetration ..... the riser, with access from the pig trap . The pig train consisted of a slug …
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European pipeline spills down in 1995
… gross 280 cu m of naphtha) was caused by mechanical failure in the form of an incorrectly manufactured modification to a pig trap . About 71% of the spillage was recovered. Cleanup took 15 days and was estimated at $1.5 million. Copyright 1997 …
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PRESSURE-TESTING METHOD PERMITS LINE-SEGMENT ISOLATION
… to change a 26-in. valve at the head of a riser. The valve in question was one of several in-line adjacent to a pig trap , all of which needed to be refurbished. The alternative to using the new system would have been to hydrotest the entire …
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EUROPEAN PIPELINE SPILLS IN 1990 FEWEST ON RECORD
… environmental reasons. The accidental closure by a pipeline worker of a mainline valve at a pump-station caused a scraper- pig trap at an upstream facility to become over-pressurized. A spillage of 252 cu m (1,857.6 bbl) of jet fuel occurred …
