Risk-Based Maintenance: A New Vision for Asset Integrity Management

Author(s):  
Randal L. Montgomery ◽  
Chris Serratella

This paper describes a holistic, risk-based approach to asset integrity management (AIM). The approach outlined in this paper is referred to as risk-based maintenance. This approach is based on proven risk assessment and reliability analysis methodologies, as well as the need to have appropriate management systems. Combining these tools and management systems provides a holistic approach to managing asset integrity, rather than a seemingly random application of analysis approaches and improvement initiatives. The information in this paper will benefit plant personnel interested in implementing an integrated AIM program or advancing their current AIM program to the next level.

Author(s):  
Oliver J. Hodgson ◽  
Dennis W. J. Keen ◽  
Malcolm Toft

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.


Author(s):  
Iain Colquhoun ◽  
Christian Calvi ◽  
Harry MacPherson

The development and implementation of specific technical procedures tend to be emphasized as key measures required to ensure the integrity of pipeline systems. These activities are clearly of vital importance. However, the integration of these activities and associated integrity programs with the overall management of the business also plays an important role in guaranteeing success of the programs. This paper describes a typical pipeline integrity management system, its objectives, and its links to other enterprise management systems. The paper also outlines simple methods that can be used to evaluate any given integrity management system’s components with a view to evaluating the programs effectiveness and driving continual improvement. These methods involve the identification of gaps with respect to specified benchmarks, and the design and implementation of risk-based programs to close the gaps. The benefits claimed include: • A comprehensive and holistic approach to pipeline integrity management aligned with company goals and objectives. • Engagement of company-wide technical expertise. • Buy-in and validation by all levels of company management. • Promotion of a company culture that encourages sustainable development of integrity management programs.


OPSEARCH ◽  
2005 ◽  
Vol 42 (2) ◽  
pp. 83-97
Author(s):  
Rashmi Jain ◽  
Dinesh Verma ◽  
John V. Farr

Water ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1350 ◽  
Author(s):  
Maria Velez ◽  
Daniel Conde ◽  
Juan Lozoya ◽  
James Rusak ◽  
Felipe García-Rodríguez ◽  
...  

Paleoenvironmental reconstructions are increasingly being used in conservation biology, ecosystem management, and evaluations of ecosystem services (ES), but their potential to contribute to the ES risk assessment process has not been explored. We propose that the long-term history of the ecosystem provides valuable information that augments and strengthens an ES risk assessment and that it should be considered routinely when undertaking risk assessments. We adjusted a standard ecosystem-based risk management (EBRM) protocol to include paleoenvironmental data, and tested the modified approach on two coastal lagoons in South America. Paleolimnological reconstructions in both lagoons indicate that salinity and nutrients (in Laguna de Rocha), and salinity (in Ciénaga Grande de Santa Marta), as controlled by hydrologic connectivity with the ocean and freshwater tributaries, have been the key variables behind ecosystem’s function. This understanding, applied to inform various components and steps in the EBRM protocol, suggests that the maintenance of hydrological connections should be a management priority to minimize risk to ES. This work illustrates the utility of including paleoenvironmental data in an EBRM context and highlights the need for a more holistic approach to risk management by incorporating the long-term history of ecosystem function.


2009 ◽  
Author(s):  
Dennis C. Bley ◽  
Erasmia Lois ◽  
Alan M. Kolaczkowski ◽  
John Alan Forester ◽  
John Wreathall ◽  
...  

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