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Findings From 16 Years of Auditing Pipeline Integrity Management Systems

[+] Author Affiliations
Oliver J. Hodgson

Penspen, Richmond upon Thames, UK

Dennis W. J. Keen, Malcolm Toft

Penspen, Newcastle upon Tyne, UK

Paper No. IPC2016-64397, pp. V002T01A013; 11 pages
doi:10.1115/IPC2016-64397
From:
  • 2016 11th International Pipeline Conference
  • Volume 2: Pipeline Safety Management Systems; Project Management, Design, Construction and Environmental Issues; Strain Based Design; Risk and Reliability; Northern Offshore and Production Pipelines
  • Calgary, Alberta, Canada, September 26–30, 2016
  • Conference Sponsors: Pipeline Division
  • ISBN: 978-0-7918-5026-6
  • Copyright © 2016 by ASME

abstract

A Pipeline Integrity Management System (PIMS) is a comprehensive, systematic, and integrated set of arrangements implemented by an operator to assess, mitigate, and manage pipeline risk. Over the past 16 years, Penspen have performed over 30 PIMS audits of pipeline operators internationally. This paper presents the collated findings from these audits, and examines the common areas in which operators have fallen short of best practice. The paper concludes with a series of recommendations based on the findings, which can be adopted by operators to improve their PIMS arrangements and practices.

Penspen’s standardized 17 -element PIMS Model takes a holistic view of pipeline integrity. The audits, which are based on the Model, assess the adequacy and effectiveness of operators’ management systems and arrangements in keeping risks to people, the environment, and to the business to acceptable levels, given the anticipated pipeline operating conditions and taking into account the pipeline’s history and current status.

Starting at the ‘top level’ of a PIMS, the audits consider the adequacy of operators’ pipeline policies, objectives, and performance metrics, and how these are subject to monitoring, review, and audit. The audits look at the organization responsible for managing the integrity of pipelines, and examine how all those with a role to play in the wider PIMS work together to this end. The numerous activities that take place during a pipeline’s lifecycle are investigated, to assess how the risk assessment results are used to determine the control and mitigation measures to be implemented during the pipeline’s design, construction, handover, commissioning, operation, inspection and maintenance, and how the operator ensures the effectiveness of these measures. The audits also study those ‘supporting’ processes and systems which play an important part in pipeline integrity management, including procurement, emergency response and recovery, incident investigation, change control, document and data management, and legal and code compliance.

The collated results from the 30+ audits reveal that while operators typically have good control systems in place for the project stages of the pipeline lifecycle, controls for the operational stages have been found to be less robust. In terms of management and organization, operators can fail to recognize how many different individuals and teams have a role to play in the management of pipeline integrity. Furthermore, while operators often have good corporate systems in place for change control, emergency response, and risk assessment, such systems may not take into account pipeline-specific risks or requirements. Operators can tend to focus on pipeline safety and/or environmental-related risks, when through holistic assessment it can be shown that risks associated with production interruptions will tend to drive actions in practice.

Copyright © 2016 by ASME

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