Feature
June 2011 Vol. 238 No. 6
Piggable Pressure Isolating System For Untapped Live Onshore Pipelines
In a perfect world every pipeline repair or maintenance site would just happen to have a valve on either side to use to isolate the work site. It is not a perfect world but the good news is that help has arrived. With the advent of new communications systems and piggable pressure isolation tools, that isolation capability now exists.