The inspection strategy of the subsea gas boosting system considering imperfect test effect
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To make better use of resources and achieve the highest benefits, the reliability and inspection strategy of the subsea gas boosting system are proposed in this paper. First, the operation modes and phases of the system were analyzed to establish the state transition chart accurately. On this base, the Markov model of the system with five state was established to depict the imperfect test effect and to get the steady-state reliability indexes of the system and the expression of steady-state probability of each state. Then, the failure rate was calculated using reliability predict method and the repairing rate was determined from experience and statistic data. Finally, system cost was calculated to determine the optimal inspection strategy and comparison was made to show the improvement of the system economic effectiveness.