Reliability analysis of gas transmission station based on GO methodology

doi:10.7623/syxb201605013

Acta Petrolei Sinica ›› 2016, Vol. 37 ›› Issue (5): 688-694.DOI: 10.7623/syxb201605013

• Petroleum Engineering • Previous Articles Next Articles

Reliability analysis of gas transmission station based on GO methodology

Yao Anlin^1,2, Huang Liangliang^1,3, Xu Taolong¹

1. School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Sichuan Chengdu 610500, China;
2. Oil and Gas Fire Protection Key Laboratory of Sichuan Province, Sichuan Chengdu 610500, China;
3. PetroChina West East Gas Pipeline Company, Shanghai 200122, China

Received:2015-11-06 Revised:2016-03-05 Online:2016-05-25 Published:2016-06-06

基于GO法的输气站场可靠性分析

姚安林^1,2, 黄亮亮^1,3, 徐涛龙¹

1. 西南石油大学石油与天然气工程学院四川成都 610500;
2. 油气消防四川省重点实验室四川成都 610500;
3. 中国石油西气东输管道公司上海 200122

通讯作者: 姚安林,男,1959年9月生,1982年获西南石油学院学士学位,现为西南石油大学石油与天然气工程学院教授,主要从事油气管道系统安全评估及完整性管理技术的科研与教学工作。Email:yaoalt@sina.com
作者简介:姚安林,男,1959年9月生,1982年获西南石油学院学士学位,现为西南石油大学石油与天然气工程学院教授,主要从事油气管道系统安全评估及完整性管理技术的科研与教学工作。Email:yaoalt@sina.com
基金资助:
国家科技支撑计划项目(2011BAK06B01-11)资助。

Abstract

Abstract:

To effectively improve the reliability level of natural gas transmission station and identify weak segments in system, a reliability analysis method has been established based on GO methodology. According to the basic technological processes, a gas transmission station is divided into seven blocks, i.e., pig receiving subsystem, filtering separation subsystem, pressurizing subsystem, regulating-metering subsystem, releasing subsystem, pollution discharge subsystem and pig sending subsystem. Meanwhile, GO chart model has been established based on the process flows of subsystems. The calculation formulas of GO methodology are used to quantitatively analyze the reliability and determine the fault importance of components. Based on a practical case, a comparative analysis is performed on the calculating results of GO methodology and Fault Tree Analysis methodology. The results demonstrate that compared with the Fault Tree Analysis, GO methodology is able to fully characterize the complex correlations with malfunction, maintenance, reserve and etc. in gas transmission station. The modeling process is simple with clear logic, and the analysis result is more consistent with the engineering practice. In the analysis case, the average failure probability of pressurizing subsystem is 2.2180×10^-5. The emphasis should be put on air cooler, header and buried process pipeline in station safety management owing to their high fault importance.

Key words: gas transmission station, reliability analysis, GO methodology, fault importance, pressurizing subsystem

摘要：

为有效提高天然气站场可靠性水平,识别系统的薄弱环节,基于GO法原理建立了输气站场可靠性分析方法。根据输气站场的基本工艺流程,将其划分为清管器接收子系统、过滤分离子系统、增压子系统、调压计量子系统、放空子系统、排污子系统和清管器发送子系统7个区块。根据子系统的工艺流程建立了GO图模型,通过GO法计算公式进行可靠性定量分析并确定组成部件的故障重要度,通过实际案例,将GO法与故障树分析法的计算结果进行对比。结果表明:相对于故障树分析法,GO法能够充分表征输气站场中存在的关于停工、维修和备用等故障的复杂相关性,建模过程简单、逻辑清晰,且分析结果更加符合工程实际;分析案例中增压子系统的平均失效概率为2.2180×10^-5,其中的空冷器、汇管以及埋地工艺管道的故障重要度较高,应作为站场安全管理的重点关注对象。

关键词: 输气站场, 可靠性分析, GO法, 故障重要度, 增压子系统

CLC Number:

TE88

Yao Anlin, Huang Liangliang, Xu Taolong. Reliability analysis of gas transmission station based on GO methodology[J]. Acta Petrolei Sinica, 2016, 37(5): 688-694.

姚安林, 黄亮亮, 徐涛龙. 基于GO法的输气站场可靠性分析[J]. 石油学报, 2016, 37(5): 688-694.

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Reliability analysis of gas transmission station based on GO methodology

基于GO法的输气站场可靠性分析

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