Safety integrity level evaluation method for marine oil well control equipment
An offshore oil and integrity technology, applied in the field of offshore oil, can solve the problems of inability to take into account the degradation law, maintenance, difficulty in accurate calculation, and increased model complexity, achieving rich data, convenient evaluation process, and accurate and intuitive evaluation results. Effect
An offshore oil and integrity technology, applied in the field of offshore oil, can solve the problems of inability to take into account the degradation law, maintenance, difficulty in accurate calculation, and increased model complexity, achieving rich data, convenient evaluation process, and accurate and intuitive evaluation results. Effect
CN110109359AActive Publication Date: 2019-08-09CHINA UNIV OF PETROLEUM (EAST CHINA) +2
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[0045] specific implementation plan
[0046] Such as figure 1As shown, the evaluation method of safety integrity level of offshore oil well control equipment includes three major steps: creating a safety instrument function evaluation module and dividing the system equipment into subsystems, establishing a Bayesian network model for calculation, comprehensive calculation analysis and optimization .
[0047] The specific steps to create a safety instrumented function evaluation module and divide the system equipment into subsystems are as follows:
[0048] S101: According to the assessment requirements, create safety instrumented function modules; such as figure 2 As shown, according to the configuration of offshore oil well control equipment, the preliminarily set safety instrument functions include the opening function of the upper annular BOP, the closing function of the upper annular BOP, the opening function of the lower annular BOP, the lower annular BOP Closing funct...
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The invention belongs to the field of marine oil and specifically relates to a safety integrity level evaluation method for marine oil well control equipment. The safety integrity level evaluation method for the marine oil well control equipment comprises the following three steps: creating a safety instrument function evaluation module and dividing related equipment executing a safety instrumentfunction into a sensor subsystem, a controller subsystem and an executor subsystem, respectively building a dynamic Bayes network model of each subsystem and calculating, and synthesizing safety integrity data of the subsystems and performing optimization analysis; and in a process of building the dynamic Bayes network models, fully considering influence of structural configuration of the marine oil well control equipment, connection relations among all the units as well as degeneration maintenance inspection parameters on an evaluation process. The method provided by the invention has the main advantages that a safety instrument system is divided into multiple safety instrument function modules to be evaluated, and the safety integrity data is quantitatively calculated by adopting a dynamic Bayes network method, so that data is more detailed and accurate.
Description
technical field [0001] The invention belongs to the field of offshore oil, and in particular relates to a method for evaluating the safety integrity level of offshore oil well control equipment. Background technique [0002] In offshore oil and gas exploration and development, well control equipment must ensure the normal execution of safety functions when necessary, and it constitutes a generalized safety instrumented system with blowout and kick parameter detection equipment. The safety integrity level (Safety Integrity Level, SIL) is divided according to the probability that the safety instrumented system performs the safety instrument function under the specified time and conditions. The safety instrumented system is mainly used to monitor the state of the production process, judge potential dangers, and timely alarm or directly execute safety functions for dangerous abnormal conditions, so as to avoid or reduce the occurrence of dangerous accidents, eliminate or reduce ...
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Patent Timeline
09 Aug 2019
Publication
CN110109359A
- IPC
- G05B13/04
- CPC
- G05B13/042; G05B9/02; G05B2219/24008; G05B23/024; G06N7/01; Y02P90/02; G05B19/406; G05B2219/31304
- Inventors
- 蔡宝平; 李文超