Equipment Objective

The prime objective of a subsea equipment RBI is to reveal the major failure types and establish a mitigation and control plan to maximize the reliability and availability of subsea systems and ensure the integrity of those same systems by avoiding and reducing the frequency of poor outcomes. A subsea equipment RBI operates on many levels throughout the project.

It is essential for information on major risks to flow upward into a central register where it can be aggregated, prioritized, and managed. The scope of the RBI system must be multidisciplinary and include technical, commercial, financial, and political risks.

Subsea Equipment threats and opportunities

The objectives of a subsea equipment RBI are summarized as follows:

  • Carefully define steps to improve facility performance.
  • Make use of a systematically applied equipment database.
  • Incorporate advances in technology promptly.
  • Optimize inspection, test, and maintenance work.
  • Eliminate unplanned equipment failures.
  • Improve plant performance.
  • Reduce costs.

With a subsea RBI module, a qualitative RBI assessment can be performed. All significant failure causes and modes will be identified and analyzed to develop a cost-effective inspection plan for subsea equipment.


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[2] Det NorskeVeritas, OREDA Offshore Reliability Data Handbook, fourth ed., Det Norske Veritas Industri Norge as DNV Technica, Norway, 2002.

[3] Mott MacDonald Ltd, PARLOC 2001, The Update of the Loss of Containment Data for Offshore Pipelines, fifth ed., HSE, London, United Kingdom, 2003.

[4] Norwegian Technology Standards Institution, CO2 Corrosion Rate Calculation Model, NORSOK Standard No. M-506, (2005).

[5] M.H. Stein, A.A. Chitale, G. Asher, H. Vaziri, Y. Sun, J.R. Collbert, Integrated Sand and Erosion Alarming on NaKika, Deepwater Gulf of Mexico, SPE 95516, 2005, SPE Annual Technical Conference and Exhibition, Dallas, Texas, 2005.

[6] O.H. Bjornoy, C. Jahre-Nilsen, O. Eriksen, K. Mork, RBI Planning for Pipeline Description of Approach, OMAE2001/PIPE-4008, OMAE 2001, Rio de Janeiro, Brazil, 2001.

[7] American Society of Mechanical Engineers, Manual for Determining the Remaining Strength of Corroded Pipelines, ASME B31G-1991, New York, 1991.

[8] Det Norske Veritas, Corroded Pipelines, DNV-RP-F101, 2004.