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== Abstract ==

Gas purging, a process of displacing one gas by another gas, occurs on a routine basis in the natural gas industry when pipelines are purged into and out of service. In a project sponsored by the Gas Research Institute and in cooperation with the American Gas Association (A.G.A.) the purging practices as outlined in the A.G.A.’s Purging Principles and Practices manual are being reviewed because many of today’s pipeline purging operations occur under conditions not addressed directly in the manual. The program focus is on the purging procedures outlined in Chapter 8 of the manual entitled Gas Transmission and Distribution Pipes. The technical objective of the project is to develop an understanding of the scientific principles upon which safe, practical purging practices can be based. Direct displacement and inert gas slug purging operations are explained in terms of dispersion and mixing parameters and their relationship to the gas velocity. Field data is compared to the results of an analytical mixing model. Computer software for planning safe and cost effective pipeline purges has been developed. Finally, recommendations for revising Chapter 8 of the A.G.A. manual are presented.

== Original document ==

The different versions of the original document can be found in:

* [http://proceedings.asmedigitalcollection.asme.org/data/conferences/asmep/89957/765_1.pdf http://proceedings.asmedigitalcollection.asme.org/data/conferences/asmep/89957/765_1.pdf]

* [http://asmedigitalcollection.asme.org/IPC/proceedings-pdf/doi/10.1115/IPC1996-1882/2506930/765_1.pdf http://asmedigitalcollection.asme.org/IPC/proceedings-pdf/doi/10.1115/IPC1996-1882/2506930/765_1.pdf],
: [http://dx.doi.org/10.1115/ipc1996-1882 http://dx.doi.org/10.1115/ipc1996-1882]

* [http://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/120/4/249/5810353/249_1.pdf http://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/120/4/249/5810353/249_1.pdf],
: [http://dx.doi.org/10.1115/1.2829548 http://dx.doi.org/10.1115/1.2829548]

* [https://asmedigitalcollection.asme.org/offshoremechanics/article/120/4/249/433092/Pipeline-Purging-Principles-and-Practice https://asmedigitalcollection.asme.org/offshoremechanics/article/120/4/249/433092/Pipeline-Purging-Principles-and-Practice],
: [https://offshoremechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1453592 https://offshoremechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1453592],
: [http://offshoremechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1453592 http://offshoremechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1453592],
: [http://asmedigitalcollection.asme.org/data/Journals/JMOEEX/28127/249_1.pdf?resultClick=1 http://asmedigitalcollection.asme.org/data/Journals/JMOEEX/28127/249_1.pdf?resultClick=1],
: [http://fluidsengineering.asmedigitalcollection.asme.org/article.aspx?articleid=1453592 http://fluidsengineering.asmedigitalcollection.asme.org/article.aspx?articleid=1453592],
: [https://academic.microsoft.com/#/detail/2076624650 https://academic.microsoft.com/#/detail/2076624650]

* [https://nondestructive.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986 https://nondestructive.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986],
: [https://asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986 https://asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986],
: [http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2572926 http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2572926],
: [https://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2572926 https://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=2572926],
: [https://medicaldiagnostics.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986 https://medicaldiagnostics.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/40214/765/265986],
: [https://pressurevesseltech.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/765/265986 https://pressurevesseltech.asmedigitalcollection.asme.org/IPC/proceedings/IPC1996/765/265986],
: [https://academic.microsoft.com/#/detail/2532923964 https://academic.microsoft.com/#/detail/2532923964]

DOIS: 10.1115/1.2829548 10.1115/ipc1996-1882

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Lambeth et al 1998a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 105672406 to Lambeth et al 1998a

Scipediacontent: Created page with " == Abstract == Gas purging, a process of displacing one gas by another gas, occurs on a routine basis in the natural gas industry when pipelines are purged into and out of s..."