站点伴生气凝析油排放工艺改进以及应用效果评价  

Process improvement and application evaluation of condensate oil emission in transfer stations

作　　者：何娟 唐海[1] 龙雄云[2] 李姝蔓 王成龙 HE Juan TANG Hai LONG Xiong-yun LI Shu-man WANG Cheng-long(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China No.3 Oil Production Plant, PetroChina Changqing Oilfield Company, Yinchuan 750006, China The Exploration and Development Research Institute, PetroChina Changqing Oilfield Company, Xi＇an, 710018 Zhanjiang Research Institute, CNOOC Ltd., Zhanjiang 527057, China)

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]长庆油田分公司第三采油厂工艺研究所,宁夏银川750006 [3]长庆油田分公司勘探开发研究院,陕西西安710018 [4]中海石油(中国)有限公司湛江分公司,广东湛江527057

出　　处：《现代化工》2017年第10期217-220,共4页Modern Chemical Industry

基　　金：国家"十三五"重大专项(2016ZX05053-06-02)

摘　　要：以实际油田为对象,从凝析油的排放量、常规的工艺处理流程以及排放方式优缺点3个方面系统地研究了站点凝析油管理现状,表明了员工排放、直排污油箱和直排事故罐3种排放方式在分离排放效果、员工工作量、安全隐患等方面并不能满足安全密闭性回收的要求。主要从气液分离器出口、设备伴热、自动化以及凝析油的去向等方面对站点凝析油的排放处理工艺流程进行了改进,并在9座站点进行了现场应用和效果分析,凝析油的排放量由340 L/d增加到405 L/d,人工排放频次由77次/d降低到0次/d,证明了改进工艺流程的可行性以及高效性。Based on specific oilfield,the management status of condensate oil emission in transfer stations is studied systematically in various aspects including the emission amount of condensate oil,conventional process treatment procedures and advantages and shortcomings of various emission ways. The results illustrate that three existing emission ways such as manual emission,direct drainage contaminated-oil tank,and direct drainage fault pot all can hardly meet the requirements in safety,close and recovery from three aspects including the effect of separation and emission,work load for staff and hidden risks. Therefore,the emission process treatment procedures of condensate oil in transfer stations have been improved from aspects such as the outlet design of gas-liquid separator,heat tracing for devices,automation,and the end usage of condensate oil. Spot applications and effect evaluations have been performed in nine stations. Results show that the emission amount of condensate oil increases from 340 liters per day to 405 liters per day,while times of manual emission operation decrease from 77 times per day to zero,which has approved that improvements are feasible and effective.

关 键 词：伴生气利用 凝析油 大型站点 工艺流程 安全隐患 

分 类 号：TE99[石油与天然气工程—石油机械设备]