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Refinery Remaining Life Assessment

For a major Canadian oil refiner, APTECH conducted a life assessment study for major classes of equipment, such as columns, pressure vessels, heat exchangers, fired heaters, compressors, tanks, and piping. Over 200 pieces of equipment were evaluated. The majority of this equipment had been in continuous operation for about one design lifetime. Major degradation modes evaluated included creep rupture, stress rupture, corrosion, stress corrosion cracking, high temperature hydrogen attack, wet H2S cracking, and fires and explosions. APTECH identified those pieces of equipment with limited remaining life and for which the client's current maintenance program did not make adequate provisions. Further, utilizing the results of prior risk assessments conducted for the facility, APTECH identified a list of unusually critical equipment which, upon failure, would result in a loss of production of six months or more.

Satish Almaula		Plant failure and root cause analysis; process and design engineering analysis; process technology development and testing; plant engineering, operations, maintenance and safety management; plant and process control system management.

Geoffrey Egan, Ph.D.		Engineering mechanics, welding engineering, stress and fatigue analysis, risk analysis, nondestructive examination, project management.

Steven Kohan, Ph.D.		Chemical engineering, refinery processes, toxic fume generation.

Michael Cronin, P.E.		Stress analysis, design evaluation, engineering mechanics

Steve Paterson		Metallurgy, welding, boiler pressure part and machinery failure analysis.