混输海底管道进站调压阀安装位置的影响分析  

Influence analysis on installation position of inlet pressure regulating valve for multiphase subsea pipeline

作　　者：李鹏程 江志华 王军 张文欣 LI Pengcheng;JIANG Zhihua;WANG Jun;ZHANG Wenxin(CNOOC Research Institute Co.,Ltd.,Beijing 100028,China)

机构地区：[1]中海油研究总院有限责任公司

出　　处：《石油工程建设》2019年第5期43-45,共3页Petroleum Engineering Construction

基　　金：国家科技重大专项“深水流动安全保障与水合物风险控制技术”（2011ZX05026-004）

摘　　要：混输海底管道进站压力稳定对保障陆地终端向下游用户提供可靠的气质与气量十分重要,进站调压阀是控制进站压力的重要元件。针对进站调压阀安装在段塞流捕集器上游或下游的情况,分析其对段塞流捕集器最大操作压力的确定、清管过程中终端向下游用户供气及终端操作模式调整的影响。分析结果表明,进站调压阀安装在段塞流捕集器下游可有效保障向终端用户供气的气质和气量,安装在段塞流捕集器上游可降低段塞流捕集器最大操作压力,优化工程投资;调压阀安装位置应结合陆地终端装置运营模式、下游用户供气要求以及项目投资等因素综合确定。The inlet pressure is very important to ensure the onshore terminal providing natural gas with stable composition and flow rate for the downstream users.The inlet pressure regulating valve is the important instrument to control inlet pressure.When the inlet pressure regulating valve is installed in upstream or downstream of the slug catcher,the influences of the valve position on the maximum operating pressure of the slug catcher,the terminal gas supply for downstream gas users and the adjustment of the terminal operation mode during pipeline pigging are studied.The analysis results indicate that the inlet pressure regulating valve installed in downstream of the slug catcher can not only effectively ensure the gas supply for downstream users in gas composition and flow rate,but also reduce the project investment;the inlet pressure regulating valve installed in upstream of the slug catcher can reduce the maximum operating pressure of the slug catcher and optimize project investment;the installation position of the inlet pressure regulating valve should be determined in combination with the operation mode of land terminal equipment,the gas demand of downstream users and the project investment.

关 键 词：进站调压阀 安装位置 段塞流捕集器 混输海底管道 清管 

分 类 号：TV7[水利工程—水利水电工程]