元坝气田井口控制系统应用效果跟踪及优化研究
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摘要
井口控制系统是元坝气田自控系统的重要组成部分,能够保障元坝气田井口关键阀门平稳运行及联锁关断,跟踪其应用效果以及优化研究在气田开发中有着较为重要的意义。自元坝气田试采工程井站调试投产以来,各采集气井站、各供应厂家井口液控系统先后出现了多种多样的故障,极大地影响了元坝气田的生产运行管理和经济效益。本文以元坝气田井口控制系统为研究对象,针对元坝气田井口控制柜液控管线外漏、电机频繁补压、控制压力及先导压力过高、高低压限位阀故障以及RTU频繁遭雷击等故障现象,分析了密封部件损坏、外部环境影响、设备故障等原因,并结合现场液控柜故障实例分析及措施探讨,基于设计原理以及外部环境,可采取合理优化扣型、关键阀门声响报警、关键点压力监测、RTU双浪涌保护、合理调整溢流阀压力以及高导压力值等优化措施,以期为井口控制柜的平稳运行提供有利的保障。
Automated control system mounted on the wellhead is an important part of security control system in Yuanba Gas Field,which can ensure the sustainable run of key wellhead valve and interlock turning off.Its application tracking and streamline research would be of great importance during gas field development.Since well station for production test put into production in Yuanba Gas Field,various failures appeared successively on the automated control systems at each gas gathering station with each supplier,which influenced operation and economic benefit in Yuanba Gas Field significantly.The automated control system mounted on the wellhead in Yuanba Gas Field was studied.Leakage of hydraulic pipeline,frequent pressing of electrical machinery,excessive pressure control and pilot pressure,failures of limit valve of high pressure and low pressure and frequent lightning strike of RTU and other failures were analyzed.The reasons of sealing parts failure,external environmental impact and equipment failures were expounded.Combined with case study in site,some optimization measures,such as optimized buckle type of hydraulic pipeline,audible alarm of key valve,pressure monitoring of key point,double surge protector on RTU,reasonable adjustment on pressure of relief valve and high pressure of limit valve,were put forward based on the design principle and external environment so as to provide strong assurance for smooth running of the automated control system mounted on the wellhead.
Automated control system mounted on the wellhead is an important part of security control system in Yuanba Gas Field,which can ensure the sustainable run of key wellhead valve and interlock turning off.Its application tracking and streamline research would be of great importance during gas field development.Since well station for production test put into production in Yuanba Gas Field,various failures appeared successively on the automated control systems at each gas gathering station with each supplier,which influenced operation and economic benefit in Yuanba Gas Field significantly.The automated control system mounted on the wellhead in Yuanba Gas Field was studied.Leakage of hydraulic pipeline,frequent pressing of electrical machinery,excessive pressure control and pilot pressure,failures of limit valve of high pressure and low pressure and frequent lightning strike of RTU and other failures were analyzed.The reasons of sealing parts failure,external environmental impact and equipment failures were expounded.Combined with case study in site,some optimization measures,such as optimized buckle type of hydraulic pipeline,audible alarm of key valve,pressure monitoring of key point,double surge protector on RTU,reasonable adjustment on pressure of relief valve and high pressure of limit valve,were put forward based on the design principle and external environment so as to provide strong assurance for smooth running of the automated control system mounted on the wellhead.
引文
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[2]吴革生,王效明,宋汉华,等.气井井口智能生产控制系统[J].新疆石油天然气,2008(增1):126-132.
[3]李战平,鲁艳峰.长北气田气井井口控制系统的设计与应用[J].自动化仪表,2008,29(3):44-46.
[4]刘健,薛海林.海上石油平台井口控制盘的设计方法[J].石油化工自动化,2015,51(6):25-27.
[5]陈擎东,李军,罗辉.高压气井井口控制柜远程关断系统[J].油气田地面工程,2011,30(8):76-77.
[6]朱明喜.普光气田地面安全控制系统[J].石油化工自动化,2012,48(4):80-82.
[7]李国娜,吉万成,张春生,等.塔里木高压气田井口安全控制系统[J].油气田地面工程,2014,33(9):18-18.
[8]吴云才,何银达,易飞,等.井口安全控制系统自控部分现状分析及优化[J].天然气与石油,2015,33(1):93-97.
[9]屈少林.高压气田井口控制盘的优化研究及应用[J].石油化工自动化,2017,53(1):37-40.