0

Full Content is available to subscribers

Subscribe/Learn More  >

Maintenance of Gas Pipeline Automatic Block Valves

[+] Author Affiliations
Thales B. da Cruz

Petrobras Transporte S.A. - TRANSPETRO, Guararema, SP, Brazil

Márcia G. de Novaes, João Paulo de B. Leite

Petrobras Transporte S.A. - TRANSPETRO, Rio de Janeiro, RJ, Brazil

Paper No. IPC2014-33590, pp. V004T08A017; 7 pages
doi:10.1115/IPC2014-33590
From:
  • 2014 10th International Pipeline Conference
  • Volume 4: Production Pipelines and Flowlines; Project Management; Facilities Integrity Management; Operations and Maintenance; Pipelining in Northern and Offshore Environments; Strain-Based Design; Standards and Regulations
  • Calgary, Alberta, Canada, September 29–October 3, 2014
  • Conference Sponsors: Pipeline Division
  • ISBN: 978-0-7918-4613-1
  • Copyright © 2014 by ASME

abstract

The concept of gas pipelines sectionalized by block valves in Brazil has focused on safety rather than operability, and so all such valves are automatically controlled. However, operational history has indicated that undesired actuation of automatically controlled blocking valves is among the major risks of supply failure. Thus, a statistical study was carried out to identify the chief causes for undesired closures and opportunities for improvements. One of the most important causes is the lack of standardization of equipment and procedures within the pipeline network. The lack of standardization usually results in higher costs and complexity of operation and maintenance.

With the purpose of overcoming such drawbacks, it was required to establish a program for process optimization, in order to obtain well-adjusted maintenance and operational procedures throughout the life cycle of the equipment and facilities. A maintenance strategy for the automatic block valves is an important point to achieve the objectives defined in this program, such as an increase in operational reliability, minimizing the risks of gas-supply failure and the reduction of operational costs.

Although the project is still in progress, it is already possible to observe some positive outcomes related to operational reliability, showing a significant reduction in the number of operational occurrences of automatic block valves in 2013.

Copyright © 2014 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In