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Australian Energy Producers Journal Australian Energy Producers Journal Society
Journal of Australian Energy Producers
RESEARCH ARTICLE (Non peer reviewed)

Reducing maintenance burden on established facilities through a targeted risk review of safety critical equipment

Bronwyn Innes
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Upstream Production Solutions, 1101 Hay St, West Perth, WA 6005, Australia. Email: bronwyn.innes@upstreamps.com

The APPEA Journal 59(2) 612-614 https://doi.org/10.1071/AJ18061
Accepted: 4 April 2019   Published: 17 June 2019

Abstract

Traditionally, safety critical equipment is identified in the computerised maintenance management system, at a whole- or subsystem level, during detailed design. Once the computerised maintenance management system is commissioned, thousands of equipment tags are identified as safety critical, and the categorisation is rarely looked at holistically again. As an industry, we are constantly working to reduce the maintenance and operating costs of our facilities without compromising safety. A change in operating risk profile of a facility presents an often-overlooked opportunity to achieve this. A risk-based review of safety critical equipment identified in the computerised maintenance management system can allow for reduction of the critical maintenance burden and facility operating costs. For established facilities, a detailed review of safety critical elements and equipment is generally limited to life extension projects or major brownfields modifications. However, over the operating life of a facility the risk profile and risk tolerances may change. This paper considers three potential causes of change and the opportunities that arise. These causes of change include: (i) change in risk profile due to changing operating conditions, e.g. reservoir depletion; (ii) change of operator resulting in a different operational risk appetite; and (iii) changing in industry risk data or methodologies. Applying a targeted risk-based review to the high-value or high-risk safety critical equipment affected by these changes can provide justification of changes to their safety criticality rating. This paper presents a methodology for providing a transparent, risk-based approach to re-classifying safety criticality which aligns with regulatory requirements and stakeholder expectations.

Additional keywords: aging facilities, as low as reasonably practicable (ALARP), change of operator, cost benefit analysis, formal safety assessment, fire and explosion risk assessment, offshore, offshore petroleum and greenhouse gas storage regulations (safety) (OPGGS(S)), risk engineering, risk review, safety critical elements, safety critical equipment, reverse ALARP.

Bronwyn Innes – Risk Engineer, BEng(Chem)(hons), BSc(Chem), MIEAust, FS Eng (TÜV Rheinland). Bronwyn leads Upstream PS’ provision of risk engineering services, providing operational risk support for both new developments and brownfield facilities (onshore and offshore). She has worked as a risk consultant in the oil and gas industry for clients including Woodside, OMV, Apache, and Chevron. Her experience in risk engineering on FPSO, WHP, pipelines, FLNG, drilling, subsea, construction, and oil and gas processing facilities allows her to bring a wide range of knowledge to provide value to Upstream PS’ clients.


References

Australian Government (2013). Offshore Petroleum and Greenhouse Gas Storage (Safety) [OPGGS(S)] Regulations 2009. Chapter 2, Part 2, Division 3, 2.30(1)(a).

Clegg, N., and Heinemann, S. (2018). A comprehensive approach to safe and successful asset operatorship transition. The APPEA Journal 58, 521–524.
A comprehensive approach to safe and successful asset operatorship transition.Crossref | GoogleScholarGoogle Scholar |

International Association of Oil & Gas Producers [OGP] (2010). Risk assessment data directory. Report No. 434. OGP, London.

National Offshore Petroleum Safety and Environmental Management Authority [NOPSEMA] (2015). Guidance note GN0166 – ALARP. p. 7. Available at https://www.nopsema.gov.au/assets/Guidance-notes/A138249.pdf [verified 29 April 2019].

National Offshore Petroleum Safety and Environmental Management Authority [NOPSEMA] (2016) Guidance note GN0619 – Replacement of a registered operator for an operating facility. p. 3. Available at https://www.nopsema.gov.au/assets/Guidance-notes/A76451.pdf [verified 29 April 2019].

Oil & Gas UK (2014). Guidance on risk related decision making. (Oil & Gas UK: London.)

Waters, L.B., Blotto, P., Covil, M., and Cracknell, D. (1996). E&P forum risk assessment data directory. In ‘The third international conference on health, safety & environment in oil & gas exploration & production, Volume 1, 9–12 June 1996, New Orleans, LA.’ SPE-35774. pp. 155–164. (Society of Petroleum Engineers)