Bhardwaj, U., Teixeira, A. P. and Guedes Soares, C. (2019), “Reliability prediction of a subsea separator”, 4th Workshop and Symposium on Safety and Integrity Management of Operations in Harsh Environments: Risk, Reliability and Resilience (CRISE4), 15-17 July, St. John's, Newfoundland, Canada, p. 1-9

This paper estimates the failure rate a of subsea separator based on data available for a similar, known, topside equipment. First, the failure modes and failure causes of the subsea separator as well as its main reliability influencing factors are identified. Then, a reliability prediction method is illustrated stepwise to estimate the total failure rate of the subsea separator. Reliability data from OREDA (Offshore and Onshore Reliability Data) are used to demonstrate the method and for comparing the failure rates of the topside and subsea separators. Finally, a parametric study is conducted to show the effect of variation of topside failure rate on the estimated failure rate of the subsea separator. It is expected that the application of the reliability prediction method will help in understanding the field performance of the subsea separators. This study could be further extended to predict the reliability of other subsea equipment.

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