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Wellhead Integrity Management System

Wellhead Integrity Management System

Velosi uses FMECA based RBI Methodology for Wellhead Integrity Assessment. The methodology is developed in accordance with BS EN 60812, IEC 60812, OREDA, API 6A, API 14B, API 14C, API RP 57 and ISOTS-116530-2 to optimize the preventive maintenance activities.

Velosi recommends use of reliability analysis methods that can be used to identify and assess the impact of failures of well barrier elements.

Such analysis are useful for:

  • Comparing different well maintenance alternatives with respect to blowout probabilities
  • Evaluating the blowout risk for specific well equipment
  • Identifying potential barrier problems in specific well types
  • Assessing the effect of various risk reduction methods
  • Identifying potential barrier problems during well interventions/maintenance activities

Velosi uses FMECA approach to answer the following questions:

  • In what ways can system components fail?
  • What are the underlying causes of failures?
  • How can failures be detected?
  • What are the failure effects, on the failed component and on the system?
  • How critical are the failure effects, in terms of damage to humans, the environment, or material assets?
  • What are the common industrial practices to mitigate the failures against identified mechanisms?

  • Formulization of Asset Register
  • Identification of applicable damage mechanism / de-gradation mechanism
  • Risk Ranking & Calculation of criticality based on calculated POF & COF
  • Development of Inspection plan against calculated criticality factors
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