气田采出水预处理工艺技术优化  

Optimization of the Pretreatment Process of Gas Field Produced Water

作　　者：马志荣[1] 祝守丽 傅俊义 MA Zhi-rong;ZHU Shou-li;FU Jun-yi(Karamay Vocational&Technical College,Xinjiang Karamay 834000,China;PetroChina Xinjiang Oilfield Oil and Gas Storage and Transportation Branch,Xinjiang Karamay 834000,China)

机构地区：[1]克拉玛依职业技术学院,新疆克拉玛依834000 [2]中国石油新疆油田油气储运分公司,新疆克拉玛依834000

出　　处：《当代化工》2019年第12期2836-2839,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金项目“油源断裂转换带优势输导油气条件研究”(41372153);中国石油天然气股份有限公司重大科技专项“大庆油气持续有效发展关键技术研究与应用”(2016E-0211).

摘　　要：针对气田处理厂采出水预处理工艺整体运行效率不高,甲醇回收系统腐蚀严重,注水管线污泥堵塞明显等问题,对采出水预处理工艺技术进行了优化改进。通过延长采出水在卸车池及原料水罐中沉降时间,使采出水中油水充分分层,必要时添加破乳剂,进一步将采出水中油分分离。冬季在管道混合器或在反应罐外壁增加伴热,或安装可加热型管道混合器,对液体进行适当加热,采出水与药剂混合充分均匀,充分发挥药效,防止絮体过快析出,从而提高沉降效果。并提出了相关的工艺优化及改进措施,为采出水预处理工艺提供借鉴。In view of the problems of low overall operation efficiency,serious corrosion of methanol recovery system and obvious sludge blockage in water injection pipeline,the pretreatment process of produced water in gas field treatment plant was optimized and improved.By prolonging the settling time of produced water in the unloading tank and raw water tank,the full stratification of oil and water in the produced water can be realized.If necessary,adding demulsifier can further separate the oil from the produced water.In winter,heat tracing should be used in the pipe mixer or on the outer wall of the reactor tank,or a heated pipe mixer should be used to properly heat the liquid,and the produced water should be fully and evenly mixed with the medicament,preventing the flocs from quick precipitating,thus improving the settlement effect.The relevant process optimization and improvement measures were put forward to provide reference for the pretreatment process of produced water.

关 键 词：采出水 水处理 混合器 水质分析 

分 类 号：X741[环境科学与工程—环境工程] TE37[石油与天然气工程—油气田开发工程]