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Pig news and technical articles from Oil & Gas Journal. Search Pig latest and archived news and articles

  1. Pig behavior provides data for monitoring pipeline geometry

    Magazine Articles

    Mon, 1 May 2000

    deployed a system that tracks the progress of a pig as it moves along the line. The SAAM ..... 3D) pipeline-inspection vehicle (" pig ") to measure the pipeline geometry profile ..... development was based on the assumption that this pig behavior was directly affected both by the

  2. PIG -TRAIN ISOLATION DESIGN DEVELOPED FOR NORTH SEA ESV WORK

    Magazine Articles

    Mon, 26 Aug 1991

    high differential pressure, high sealant pig concept as an isolation technique for both ..... M&S) experience with a bidirectional pig train, acquired during the installation ..... nitrogen, gelled diesel, and diesel forming a pig train (Fig. 3), referred to as primary

  1. NORTH SEA MODULAR PIG RECEIVER DESIGNED FOR BOTH OIL, GAS

    Magazine Articles

    Mon, 5 Jul 1993

    Seatech Consultants Ltd. London Design of subsea modular pig receivers for the North Sea's Tiffany field export ..... of the normal flow through a modular removable subsea pig receiver. Each pig receiver was designed to accept a pig train containing

  2. By-pass pig passes test for two-phase pipelines

    Magazine Articles

    Mon, 14 Oct 1996

    simulation model of the dynamics of a by-pass pig and related two-phase flow behavior along with field trials of the pig in a dry-gas pipeline have revealed significant gains in use of a by-pass pig in modifying gas and liquid production rates

  3. WATCHING THE WORLD PIG OF A DAY FOR BRITISH GAS

    Magazine Articles

    Mon, 12 Jun 1995

    the Chinese calendar, is the Year of the Pig . This was a good omen for the sender ..... heavily this year for British Gas plc. A live pig and press accusations of piggish behavior ..... British Gas workers belong, displayed a large pig at the entrance to the meeting hall as angry

  4. Alyeska program allows pig performance comparison

    Magazine Articles

    Mon, 10 Feb 1997

    surveys (more commonly referred to as " pig runs") since 1979. First-generation ..... conducted while responding to the annual pig runs. With the methods presented here ..... better the information provided from the pig runs and to apply the knowledge from past

  5. SWITCH FROM SPHERES TO PIPELINE PIG IMPROVES GAS-GATHERING EFFICIENCY

    Magazine Articles

    Mon, 1 Aug 1994

    accommodate a conventional polyurethane pig . No modifications were needed at the Okarche ..... Subsequent launching of the 12-in. pig improved efficiencies to more than 95 ..... to about 5-10 psig from 100 psig. The pig , because of its greater seating ability

  6. U.S. "SMART PIG " RULE COMES UNDER RECONSIDERATION

    Magazine Articles

    Mon, 17 Oct 1994

    The U.S. Transportation Department's Research and Special Programs Administration (RSPA) is reconsidering parts of a rule requiring new and replacement pipelines to be built to allow the use of "smart Pius." Since it issued the rule last spring (OGJ, Apr. 18, P. 76), industry groups have strongly

  7. Study improves estimation of damage from stuck pigs, hydrates

    Magazine Articles

    Mon, 2 Jul 2012

    in assessing likely damage from dislodging a stuck pig or hydrate plug. A stuck pig or formation of a hydrate plug can generate fast transient ..... natural gas pipelines, as can inadequate control of pig velocity during receiving operations. Creating a

  8. Aggressive moves counter SRB in flooded subsea pipeline

    Magazine Articles

    Mon, 3 May 2010

    hydrogen sulfide scavengers, and multiple pig runs can quickly eradicate even major infestations ..... upstream end of the trunkline required six pig runs before expected concentrations were ..... pools at a low point, meaning numerous pig runs may be necessary to displace chemical

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