Underwater Christmas tree sea trial operation risk evaluation method based on feedback correction

Abstract

The invention provides an underwater Christmas tree sea trial operation risk evaluation method based on feedback correction, and the method is characterized in that the method comprises the steps: building an expert database, carrying out the evaluation of an underwater Christmas tree sea trial operation fault tree through the expert database, calculating the failure probability of each basic event and the failure probability of a top event of the fault tree according to the evaluation result of each expert, and sending the calculated failure probabilities of the basic event and the top event to each expert, and carrying out evaluation again by the experts according to the current operation or the result after the operation. The underwater Christmas tree sea test operation risk evaluation method based on feedback correction comprises result correction processing, risk factors can be identified more comprehensively and accurately, high-risk events and prevention measures can be updated in real time, a continuously updated and more perfect underwater Christmas tree sea test operation risk evaluation system is formed, and the risk evaluation method is suitable for the underwater Christmas tree sea test operation risk evaluation system. And real-time guarantee is provided for sea trial operation.

Description

technical field [0001] The invention relates to the technical field of risk assessment, in particular to a risk assessment method for sea trial operation of an underwater Christmas tree based on feedback correction. Background technique [0002] As my country's offshore oil and gas exploration moves from shallow seas to deep seas, the demand for underwater Christmas trees has increased. In order to break through foreign technology monopoly and reduce costs, breakthroughs have been made in the research and development of domestically produced underwater Christmas trees. However, due to the relatively small use of underwater Christmas trees in my country, the lack of experience in sea trial operation, and the lack of a more feasible risk assessment system for localized underwater Christmas tree sea trial operation, further improvement is needed. SUMMARY OF THE INVENTION [0003] In order to solve the above problems, the present invention provides a risk evaluation method for...

AI Technical Summary

Problems solved by technology

However, due to the relatively little use of subsea trees in my country and the lack of experience in sea trial operations, there is a lack of a more feasible risk assessment system for domestic subsea trees in sea trials, which needs further improvement

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