海上油气田生产污水处理新技术应用分析  

Application Analysis of New Technologies for Wastewater Treatment in Offshore Oil and Gas Field Production

作　　者：杜洋洋 李志强 梁宁 林湧涛 齐志彬 Du Yangyang;Li Zhiqiang;Liang Ning;Lin Yongtao;Qi Zhibin(Shenzhen Branch,CNOOC China Co.,Ltd.,Shenzhen Guangdong 518064,China)

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东深圳518064

出　　处：《山西化工》2024年第7期153-155,163,共4页Shanxi Chemical Industry

摘　　要：海上油气田在生产过程中,会产生大量含油污水。由于生产加药等因素的影响,油气田产出的污水水质很差。深水气田在生产中会加入甲醇、乙二醇等化学药剂,使产出污水水质较油田差,气田污水未经处理直接外排,会严重污染海洋环境。针对海洋油气田不同设施的生产污水水质差异,通过对生产污水除油的工艺方法进行研究,调研海域内生产污水处理工艺及效果,借鉴原油脱水中的电破乳技术,提出了一套新的应用电驱聚结破乳原理的生产污水处理工艺,并成功应用,使得外排生产污水含油量由0.003 0%下降至0.001 5%,极大地保护了海洋环境。During the production process of offshore oil and gas fields,a large amount of oily wastewater is generated.Due to factors such as production dosing,the quality of the wastewater produced by the oil and gas fields is very poor.In the production of deep-water gas fields,chemical agents such as methanol and ethylene glycol are added,resulting in poorer wastewater quality compared to oil fields.Untreated gas field wastewater is directly discharged,which can seriously pollute the marine environment.In response to the water quality differences in production wastewater from different facilities in offshore oil and gas fields,a study was conducted on the process methods for removing oil from production wastewater,and the treatment processes and effects of production wastewater in the sea area were investigated.Drawing on the electric demulsification technology in crude oil dehydration,a new production wastewater treatment process using the electric drive agglomeration demulsification principle was proposed and successfully applied,reducing the oil content of discharged production wastewater from 0.0030%to 0.0015%,greatly protecting the marine environment.

关 键 词：油气田 生产污水 水质 电破乳 电驱聚结破乳 含油量 

分 类 号：X741[环境科学与工程—环境工程]