Double Block and Vacuum Isolation Technology
In the Oil & Gas industry, pipelines often handle fluids which may be hazardous, flammable and/or toxic. Any interruption to operations for unplanned maintenance or operation activities is considered a risk of release of harmful energy or materials into the work area.
Proper isolation of equipment is selected considering the nature of work activity, materials involved, and piping arrangement. Positive isolation (blinding) of process lines and equipment is used to prevent the release of harmful energy or materials to the work area during maintenance or construction activities. However, cases can arise where this option is not always achievable or cannot be placed safely because of leaking valves, and operators require other methods of isolation.
Double Block and Vacuum is an option that can be used to enhance an isolation procedure and permit continuous monitoring throughout the isolation period.
This paper presents the performance of DBV isolation during a field trial in a gas pipeline application.
Contributing Companies and Authors
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Pipeline Technology Journal 3/2021
Issue 3/2021 of ptj is the second issue of the Pipeline Technology Journal in 2021
On its 58 pages this issue features papers to the topics of Pipeline Planning & Construction. From a fully-electric driven HDD rig to the use of artificial intelligence during the planning of offshore pipelines. This issue contains 6 papers from different companies.