负压波与输量平衡法技术在气田水管道泄漏监测中的应用  

Application of Negative Pressure Wave and Transmission Balance Method Technology in Gas Field Water Pipeline Leakage Monitoring

作　　者：钟雪 唐平 刘茜文 肖雯文 刘宇豪 张文艳 ZHONG Xue;TANG Ping;LIU Qianwen;XIAO Wenwen;LIU Yuhao;ZHANG Wenyan(Southwest Oil&Gas Field Company Gathering and Transportation Engineering Technology Institute,Chengdu 610041 China;Tianjin Zenith Oil&Gas Engineering Co.,Ltd.,Sichuan Branch,Chengdu 610000 China;Sichuan Jiacheng Petroleum&Gas Pipeline Quality Inspection Co.,Ltd.,Chengdu 610066 China;Sichuan Huayou Group Co.,Ltd.,Chengdu 610041 China)

机构地区：[1]西南油气田分公司集输工程技术研究所,四川成都610041 [2]天津市振津石油天然气工程有限公司四川分公司,四川成都610000 [3]四川佳诚油气管道质量检测有限公司,四川成都610066 [4]西南油气田分公司华油公司,四川成都610041

出　　处：《西华大学学报（自然科学版）》2024年第5期103-110,共8页Journal of Xihua University:Natural Science Edition

摘　　要：气田水管道泄漏会造成严重的环境问题。为了掌握负压波与输量平衡法监测技术在气田水管道泄漏监测中的有效性及应用效果,采用7种不同直径的限流孔模拟管道泄漏,并开展现场试验,对比分析在消除空管段塞流、末站阀门全开测试及首站停泵末站关阀3种工况下的现场应用效果。测试实验结果表明:负压波与输量平衡法能对ϕ2 mm及以上孔径泄漏进行监测,平均定位误差在50 m以内,平均报警响应时间为60 s;ϕ2 mm孔径以下的微小泄漏,使用两端流量计并结合相关软件算法可以对泄漏进行报警,但监控效果差且无法定位;采用调节末站阀门开启程度、进站泵排量等手段使管道内空管段塞流消失,可提高系统对泄漏点的有效定位。Gas field water pipeline leaks often cause serious environmental problems.In order to grasp the effectiveness and application effect of negative pressure wave and transmission balance method leakage monitoring technology in gas field water pipelines,seven different diameter flow limiting holes were used to simulate pipeline leakage in field tests,and the field application effects under three working conditions of eliminating the plug flow of empty pipe section,full opening test of the valve at the end station and closing the valve at the first stop and last station were analyzed.The test results show that:the negative pressure wave and transmission balance method can monitor the leakage of 2 mm and above aperture,and the average positioning error is within 50 meters,and the average alarm response time is about 60s.For small leakage below 2 mm aperture,the flowmeter at both ends combined with the relevant software algorithm will alarm the leakage,but the monitoring effect is not good and cannot be located;The plug flow of the empty pipe section in the pipeline disappears by adjusting the opening degree of the valve at the end of the station,and the displacement of the pump in the station,etc.,which can improve the effective positioning of the leakage point by the system.

关 键 词：负压波 输量平衡法 气田水管道 泄漏监测 

分 类 号：TE832[石油与天然气工程—油气储运工程]