Analysis of Risk Control Options for Blockage Treatment

Subsea X-mas Tree에서의 Blockage 처리 실패에 대한 위험도 저감 방안 분석

  • Received : 2012.11.29
  • Accepted : 2013.04.19
  • Published : 2013.04.30


A subsea chemical injection system treats blockage problems in a subsea production system. It is important to treat problems quickly, because production delays cause fatal profit losses in a subsea production system. Therefore, the subsea industry requires a relatively higher reliability level for a production system compared to other industries. In this study, a subsea chemical injection system (linked to a control system) to inject chemicals into a subsea X-mas tree was analyzed. By using FSA (Formal Safety Assessment), the risk factors were defined and a quantitative risk analysis utilizing FTA (Fault Tree Analysis) and ETA (Event Tree Analysis) was performed. As a result, the effectiveness of a risk reduction option was evaluated.


Subsea chemical injection system;Subsea Production System;Blockage;FSA(Formal safety assessment);FTA(Fault tree analysis);ETA(Event tree analysis)


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Cited by

  1. Risk and efficiency analysis of dual mixed refrigerant liquefaction process configurations for floating liquefied natural gas at conceptual design stage pp.10668527, 2018,


Supported by : 해양시스템공학연구소(RIMSE)