Turnarounds (TA) in refining units are executed periodically, on a planned basis, to meet multiple objectives, such as regulatory compliance, process reliability improvement, and equipment inspection and/or repairs. In a competitive business environment, managing TA events in a cost effective manner is a well-recognized challenge.
Development of a comprehensive Work Scope for the TA of equipment in a Process Unit is a key step which can make the difference when focusing on business goals for a Process Unit. Since a major turnaround can range from 500,000 – 1 MM man-hours and involve hundreds of TA tasks, Best Practices - utilizing Risk Based Work Selection methods - are used for prioritizing and justifying execution of tasks. Execution of these tasks yields an optimized work scope and minimized TA duration.
A principal outcome of this Work Process is that it enables the Unit to meet S, H, E, and Financial goals of major Process Units.
Becht uses a structured work process with its proprietary software, Strategy Tool for Risk-Assessment for Improved Turnaround Scope (STRAITS©), to deliver a database of TA tasks which can be uploaded into a Clients’ TA Planning & Execution platforms. Our Company has trained TA Facilitators and SMEs who work closely with Client TA Managers and Planners. For a Work Scope which involves 500 TA tasks covering Fixed Equipment, Machinery, Piping, Instruments & Electrical Systems, these RBWS assessments are done over a period of two weeks which includes one-week of on-site team when the Clients teams participate and provide input to our process.
The Risk Based Work Selection (RBWS) process prioritizes and optimizes planned work for a Unit turnaround. The methodology includes the following:
Moreover, this methodology complies with the following Industry Standards and Codes:
Becht Engineering’s TA RBWS process has been used at a number of refineries in North America and internationally. The Work Process uses a proprietary methodology which engages refinery TA teams and covers multiple Process Units. As previously mentioned, a key portion of our TA RBWS process involves utilizing our STRAITS software for risk based decision making to optimize TA Work Scopes and durations. A summary of the results from the TA RBWS assessments are illustrated below in the chart. The RBWS process covers the following equipment classes:
Becht Engineering Specialists have assisted Clients who are planning and executing TA's at numerous refineries in the United States and globally. Examples shown in the chart are meant to illustrate the benefits for Work scope optimization.
Our experience in facilitating RBWS sessions at numerous refineries, indicates the following:
Becht Engineering recommends the application of RBWS methodology for major TA events. For capturing the “real” savings generated by Work Scope optimization the methodology should be used after the TA Work Scope has been “frozen”. Becht’s Reliability Services Group has a highly experienced team of Reliability Practitioners and trained Facilitators who can assist Clients in TA Work Scope Planning and Execution.
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Contact Becht Reliability Services
or Call Arcot ("Radha") Radhakrishnan at (949) 208-6882
Radha's career has spanned over 45 years of worldwide involvement in the petroleum, chemicals and oil producing industries, including service with Shell Chemicals, Exxon Corporation and with ExxonMobil Corporation. At Exxon his R&D contributions included development of equipment technology for synthetic fuels (DOE) and the development/implementation of storage tank design and construction practices for atmospheric and low temperature services. His career has included a diverse range of technology assignments relating to capital projects, commissioning of new facilities, R&D, trouble-shooting, and incident investigation.
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