A macro-elasticity evaluation method and system for offshore oil well control equipment

A technology of offshore oil and evaluation method, which is applied in the field of marine engineering to achieve the effect of enhancing the impact ability, improving the elastic value and solving the error problem

Active Publication Date: 2020-06-02
CHINA UNIV OF PETROLEUM (EAST CHINA) +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of the existing elasticity evaluation, the present invention provides a macro-elasticity evaluation method and system for offshore oil well control equipment

Method used

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  • A macro-elasticity evaluation method and system for offshore oil well control equipment
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  • A macro-elasticity evaluation method and system for offshore oil well control equipment

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Embodiment Construction

[0030] specific implementation plan

[0031] Such as figure 1 As shown, the resilience of offshore oil well control equipment refers to the ability of the system to respond and restore its original state after encountering unexpected disturbances or events. At time t1, offshore oil well control equipment is impacted by typhoon, earthquake or tsunami. Under the impact load, the reliability level of the system gradually declines; After the measures are prepared, that is, at time t2, maintenance measures are taken for offshore oil well control equipment, and the reliability of the system gradually increases, and finally stabilizes at time t3.

[0032] Such as figure 2 As shown, the steps of a macro-elasticity evaluation method for offshore oil well control equipment are:

[0033] S1: Determine the type and intensity of the external shock. Under the same failure mechanism, the reliability degradation process of well control equipment components under external impact is equiva...

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Abstract

The invention belongs to the field of ocean engineering, and in particular relates to a method and system for evaluating macro elasticity of offshore oil well control equipment. The macro-resilience evaluation method of offshore oil well control equipment includes six steps: determining the type and intensity of external shocks, calculating the failure rate of components, calculating the recovery rate of components, Bayesian network modeling in the degradation process, and Bayesian network modeling in the maintenance process. Sri Lanka network modeling, offshore oil well control equipment elasticity calculation. Macro-resilience evaluation system for offshore oil well control equipment, including external shock evaluation module, component failure rate calculation subsystem, reliability degradation process simulation module, fault identification module, component recovery rate calculation module, reliability recovery process simulation module, reliability Sex change curve derivation unit, elasticity calculation unit. The elastic evaluation method belongs to the macroscopic sense and is not limited by the type of external shocks. It solves the error problem of the failure rate value in the elastic evaluation process and improves the elastic value of the system.

Description

technical field [0001] The invention belongs to the field of ocean engineering, and in particular relates to a method and system for evaluating macro elasticity of offshore oil well control equipment. Background technique [0002] Offshore oil development is one of the important energy industries in the world today. Due to the harsh working environment, offshore oil exploitation has more risks than onshore oil exploitation. Offshore oil well control equipment is an important tool to guarantee offshore oil exploitation, and its flexibility has always been concerned. In the field of engineering, resilience refers to the ability of an engineering system to respond and restore its original state after being subjected to unforeseen disturbances or events. Under the influence of severe weather such as typhoons, earthquakes and tsunamis, the performance of offshore oil well control equipment will decline or even completely lose its function; after maintenance measures are taken, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06N7/00G06Q50/02G06F111/08
CPCG06Q50/02G06F30/20G06N7/01E21B2200/22G06Q10/06G01M99/00E21B43/00G01V99/005
Inventor 蔡宝平张妍平刘永红高春坦邵筱焱许宏奇李心成陈艳东纪仁杰刘增凯刘立兵张日奎杨玉乾刘士堂魏新
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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