Pressurised Pipeline Repair enabled by Double Block Isolation Tools

Sponsored by: STATS Group

Focused on:

  • Pipelines
  • Oil
  • Gas
  • Isolation

Date: 16 April


Time: 3PM London/10AM New York

Pipeline intervention and isolation methods potentially without ceasing production.

Pipelines are the veins of the energy world, providing continuous flow of oil and gas from the operator to client. Interference with this flow can have major consequences both commercially for the operator and more critically a potential shortfall in fuel for the client. Additionally operators can often encounter difficulties in isolating sections of their pipeline to facilitate repair or maintenance activities if appropriate valves are absent from the line.

This webinar will describe pipeline isolation tooling and techniques that enable safe modification of pressurised pipelines. Double block and bleed isolation tools have been utilised pre- and post-shutdown which enables the shutdown time to be greatly reduced, reducing work scopes, increasing safety and maximising planned duties to be commercially cost-effective to the end user. High integrity isolation methods will also be explained that enable piggable and unpiggable pipeline systems to be isolated to double block and bleed isolation requirements.

Examples will be presented highlighting the benefits of double block and bleed pipeline isolation and how they are applicable to scenarios such as:

  • Emergency pipeline repair
  • Retrospective installation of pigging facilities - making unpiggable pipelines piggable
  • Removal and replacement of a pipeline section, or a deadleg
  • Installation, repair or replacement of pipeline valves (Subsea Isolation Valves, Emergency Shutdown Valves, PLR isolation Valves)
  • Pipeline infrastructure development - new pipeline tie-ins into existing pipelines
  • Decommissioning, disconnection or retirement of pipeline sections or deadlegs

The webinar will conclude with recent case studies where double block and bleed isolation has facilitated repair or modification of major pipelines. In one case 40% of UK oil production was dependent on a successful isolation.

Presented by

Gareth Campbell,

Business Development Manager

Gareth Campbell is Business Development Manager at STATS Group, based at their global headquarters at Kintore near Aberdeen.

His primary focus is promoting STATS’s range of pipeline isolation, intervention, repair and subsea equipment. He has played a key role in supporting STATS’s track record of successful isolation projects and long-term Emergency Pipeline Repair System (EPRS) contracts with international operators and contractors.

Prior to joining STATS in 2011 as a contracts engineer, Gareth was a commercial analyst with GE Oil & Gas.

Steven Byers,

Isolation Services Manager

Steven Byers joined STATS in 2010 first serving as a project engineer, moving to lead project engineer and then as a key member of STATS Management Team whilst leading significant isolation contracts on behalf of the company. Within each of these roles he has been involved in developing and executing both national and international projects.

Steven currently leads our Isolation Business Unit. He has a substantial track record in project delivery, product development, specification and validation and is instrumental in directing and execution of a number of our highest profile isolation projects. In the 4 years with STATS Group he has had unlimited exposure to all aspects of the business portfolio from piping systems, pipeline isolation, intervention, repair, connection and testing work scopes.

His knowledge of the oil and gas industry and specific sector awareness provides him with a firm basis for his current position where his focus is the support and further development of the isolation business stream.

Key Learning Objectives

  • Overview of double block and bleed pipeline isolation tools that enable safe repair of pressurised pipelines
  • Discuss mechanical isolation tools and techniques developed for piggable and unpiggable pipeline systems
  • Benefits of double block and bleed pipeline isolation and examples of repair or modification scenarios
  • Highlighting case studies where double block and bleed isolation has facilitated repair or modification of major pipelines


  • Pipeline Technical Authority
  • Asset Integrity Manager
  • Pipeline Asset Manager
  • Pipeline Maintenance
  • Operations & Maintenance Manager
  • Technical Manager
  • Head of Maintenance
  • Flowlines / Risers and Pipeline Team Lead
  • Subsea Pipelines
  • Subsea Engineer
  • Emergency Pipeline Repair Manager