摘要
海底管道试压作为管道投产前的关键验收环节,是业主与施工方的关注焦点。南海深水表层水温与海底温差较大,管内介质与管道周围环境完成热量交换才能进入标准规范要求的保压状态,试压时间很长,对工程成本和投产日期影响较大,有必要研究一种既能证明管道的安全、稳定,又能在规定时间内满足投产条件的分析方法。以茂名石化海底管道项目为例,详细分析现场数据,对压降进行工艺模拟计算,总结了一种快速验收方法。应用结果表明:该方法可以保证海底管道试压压降波动的合理性和安全可靠性,缩短了试压时间,确保了项目按时投产。同时分析了试压压降产生波动的原因,对深海海底管道试压具有一定的借鉴意义。
As a key acceptance link before pipeline commissioning,pressure test for subsea pipeline is the focus for owners and construction companies.There is a large temperature difference between surface water and bottom water in the deepwater of the South China Sea,so the pressure holding state required in the standard and specification cannot be reached until the heat exchange between the medium inside the pipeline and the environment around the pipeline is completed.And consequently,the pressure test lasts a very long time,and the engineering cost and commissioning date are impacted greatly.Therefore,it is necessary to develop a new analysis method,which can prove the pipeline safe and stabe,eliminate the pipeline quality problems and satisfy the commissioning conditions within the stipulated duration.In this paper,Maoming subsea pipeline project was taken as the example.The pressure drop was technologically simulated and calculated by analyzing the field data in detail.And a rapid acceptance method combining theory with practice was adopted to prove that the pressure drop fluctuation of Maoming subsea pipeline project during pressure test is reasonable,safe and reliable,the test time is shortened and the project is put into operation on time.In addition,the reasons for the fluctuation of pressure drop during the pressure test were analyzed.The research results provide a certain reference for the pressure test of deepwater subsea pipelines.
作者
迟艳芬
CHI Yanfen(SINOPEC Petroleum Engineering&Construction Shengli Corporation)
出处
《油气储运》
CAS
北大核心
2019年第11期1316-1320,共5页
Oil & Gas Storage and Transportation
关键词
海底管道
试压
热量交换
投产
快速验收
压降波动
subsea pipeline
pressure test
heat exchange
commissioning
rapid acceptance
pressure drop fluctuation
