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Risk assessment method for structural failure of underwater clamping jaw connector

A risk assessment and connector technology, applied in the field of risk assessment of structural failure in underwater production systems, can solve problems such as the lack of statistical data for events at the bottom of the fault tree, and achieve the effect of improving modeling efficiency and clear process

Pending Publication Date: 2020-12-04
OFFSHORE OIL ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, there is a lack of relevant statistics for fault tree bottom events in the risk assessment of underwater jaw connectors

Method used

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  • Risk assessment method for structural failure of underwater clamping jaw connector
  • Risk assessment method for structural failure of underwater clamping jaw connector
  • Risk assessment method for structural failure of underwater clamping jaw connector

Examples

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Embodiment Construction

[0074] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0075] figure 1 It is a flow chart of the risk assessment method for structural failure of the underwater jaw connector of the present invention, figure 2 It is a flow chart of calculating the failure rate of midsole events in the present invention, image 3 It is a structural failure failure mode, impact and hazard analysis table of an underwater claw connector of the present invention, Figure 4 is a structural failure fault tree analysis symbol of an underwater claw connector of the present invention, Figure 5 It is a structure failure fault tree model of underwater jaw connector of the present invention, Figure 6 It is the number and description of each event in the stru...

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Abstract

The invention discloses a risk assessment method for structural failure of an underwater claw connector, and the method comprises the steps: making analysis of a fault mode, influence and harmfulnessof the underwater claw connector, and obtaining an analysis table; establishing a fault tree model of underwater claw connector structure failure according to the analysis table; calculating the failure rate of each bottom event in the failure fault tree of the underwater claw connector structure by adopting a fuzzy comprehensive evaluation method; and making quantitative analysis on the fault tree model of the underwater claw connector structure failure to further obtain the failure rate and the reliability index of the fault tree top event. When the underwater clamping jaw connector does nothave sufficient statistical data, expert experience is converted into the failure rate of a quantitative fault tree bottom event through fuzzy comprehensive evaluation by combining an expert judgmentmethod with a fault tree analysis method, and related reliability indexes of the underwater clamping jaw connector are obtained through calculation, so that reliability of the underwater clamping jawconnector is improved. Risk assessment of structural failure of the underwater clamping jaw connector is realized.

Description

technical field [0001] The invention relates to risk assessment of structural failure in an underwater production system, in particular to a risk assessment method for structural failure of an underwater jaw connector. Background technique [0002] The subsea production system has been more and more used in the development of deepwater oil and gas fields due to its short construction period, low cost and strong disaster resistance. As a new type of rapid underwater pipeline tie-back method, the underwater jaw connector has flexible operation, low cost, and can realize the connection of vertical and horizontal pipelines, so it has a wide range of applications in the tie-back operation of deep-water oil and gas pipelines. Application prospect. Its main function is to realize safe and reliable connection between subsea production facilities. Such as the connection between subsea tree and wellhead, subsea tree and jumper, subsea manifold and jumper, subsea manifold and manifol...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F30/17G06F119/02
CPCG06F30/20G06F30/17G06F2119/02
Inventor 刘培林尹丰石磊贾鹏周雷朱春丽刘璞庞楠王巍巍张振兴张宁运飞宏
Owner OFFSHORE OIL ENG
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