The ISO 55001 standard, issued early in 2014, sets requirements for an asset management system as part of a risk based internal control system. For the petroleum, petrochemical and natural gas industries, the ISO 20815 standard, issued in 2008, provides guidance for production assurance and reliability management during project development. The Availability Assurance Charter, based on best practices and developed since 2001, provides a bridge between the project development and the asset management standards that covers all three key areas, long term term planning, project development and operations. The charter covers a somewhat wider area than what ISO 55001 requires because it also addresses parts of the long term planning and the project development processes. The ARTIS Live guideline outlines what it means to develop and sustain a risk based approach, for the dimension of production availability, with the ARTIS Live application as one of the asset management plans, in line with the requirements of the ISO standard. The ARTIS Live application enables the organisation to optimise its responses to the risks to and opportunities for the production availability and maximise the lifetime value of their assets.
In the context of long term planning, that is the optimisation of the strategic asset management plan, the availability models of the individual assets are combined to form a corporate production availability model. This is assisting with the analysis of security of supply questions and provides a quantitative basis for capacity margin discussions. The integrated model provides a transparent and structured channel to collect downtime information from the fields.
For example, many oil and gas producers supply the associated and non-associated gas from their fields to gas handling and LNG producing ventures. In order to satisfy oil export targets and the long-term commitments of natural gas supplies and LNG deliveries, continued expansions and redevelopments of the oil and gas production and supply networks are planned. An understanding of the integrated availability of these facilities is of strategic and commercial importance for making the best development choices, in particular regarding development concepts, capacities and timing.
Availability assurance in project development covers the estabishment of the ARTIS Live application as the asset management plan for addressing the risks to production availability, as part of an asset management system that meets the ISO 55001 requirements. Developed since 2001, originally based on best practices used at NAM in Groningen, it has been the best practice for major projects for ensuring that the proposed facilities meet the plant availability and capacity utilisation targets. The practice leads to a better understanding of how the process systems are expected to perform and deliver the results required. An availability model is developed to describe the proposed new plant extension, as an integrated part of the project development. The model results provide a coherent framework for the identification of design limitations, the prioritisation of potential bottlenecks and the evaluation of design alternatives. The studies aim to put full control on the production availability in the hands of the project development team.
Availability Assurance in operations focuses on establishing and sustaining an ARTIS Live application for production availability target setting, performance monitoring and reporting key availability indicators on a quarterly and annual basis, maintenance and integrity planning, and providing a vehicle for he asset management learning cycle.
The integrated availability models provide:
- a framework for setting consistent targets for production availability
- a transparent and quantitative basis for supply contract negotiations
- a measurement tool for maximisation of capacity utilisation
- a vehicle for shutdown optimisation between up- and downstream
- support of continuous improvement and facility optimisation
Production availability monitoring provides a powerful way to compare different operator shifts, management scenarios and maintenance strategies and drive changes in production availability targets over the life of the asset. It can also highlight emerging production availability bottlenecks before they actually become constraining.
Asset Management and Availability Modelling by Mark Chadderton and Khalee Field, Santos, presented at ICOMS, 2010.
Santos, with the assistance of Shell Global Solutions, has undertaken an overhaul of its Reliability and Maintenance Management System for its Cooper Basin Assets to improve equipment performance and reduce costs. This initiative includes modelling equipment availability and capacity through the usage of Availability studies using Reliability Modelling software. A major obstacle encountered was receiving management support and recognition of the merits of availability modelling. Upon receiving endorsement, availability and capacity modelling of the CO2 Trains in the Moomba Gas Processing Facility has highlighted key train specific vulnerabilities within this system. Subsequently, this has demonstrated past reliability projects may not have addressed the true causes of downtime. Availability Assurance has ensured a movement away from a subjective and reactive approach to reliability to one based on failure history and equipment criticality. Consequently, this paper outlines how availability assurance has been successfully used to move from a system of deferred production between upstream and downstream assets, to a holistic business approach whereby effective production (based on equipment capacity and availability) is the key parameter of success.
- Availability Assurance, by Hans van de Vorst, Qatar Reliability and Optimisation Forum, 2009
Availability Assurance Charter, 2014
The Availability Assurance Charter provides a platform for continuous production systems, in all industries, for optimising the design and operation of their production facilities and ensuring that future supply commitments can be met. The charter spans the whole spectrum of long term planning, project development and operations, all using a single integrated availability model:
- Long term planning, that is the optimisation of the strategic asset management plan.
- Project development: that is the selection and design of project development alternatives
- Operations: that is setting the production availability targets, thereby providing the line sight, and closing the "do - Check - Improve' asset management learning cycle.
ARTIS Live application as part of an ISO 55000 management system, 2016
The ISO 55000-2 series is the international standard, published in 2014, for asset management, that is the coordinated set of activities of an organisation to realise maximum value from their assets in the delivery of its objectives, and it applies to all industries. It is set up around the familiar 'Do – Check – Improve' learning cycle, involving all disciplines, and it outlines the requirements for an asset management system for the continual improvement. Other key concepts include risk based decision making and the 'line of sight', providing a shared understanding of how the company strategy and objectives cascade from the top down to targets for all levels of the organisation.
In any business, there is an expectation that every asset will deliver on its promises by achieving its objectives, and a requirement that each asset provide assurance regarding its ability to meet this expectation. A risk based approach to internal control can be the basis for such assurance.
This guideline outlines what it means to develop and sustain a risk based approach, for the dimension of production availability, with the ARTIS Live application as one of the asset management plans, in line with the requirements of the ISO standard. The ARTIS Live application enables the organisation to optimise its responses to the risks to and opportunities for the production availability and maximise the lifetime value of their assets.
ARTIS Live takes a scientific and integrated approach through risk modelling, data collection, optimisation and reporting, with a mathematical background based on probability theory and statistical modelling. Its key advantage is that it provides a corporate model, fully quantified and validated, accessible and understandable for all, up-to-date with the current condition status, for reviewing and optimising the responses to the opportunities and the risks. Assurance is built into every business process and ARTIS Live provides an agreed platform for that.
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