南海某平台降低外排生产水的生物毒性实例  

Example of Reducing the Biological Toxicity of Discharged Production Water on a Certain Platform in the South China Sea

作　　者：马振华 李春辉 杨勇 吴攀 王吉成 姚爽 Ma Zhenhua;Li Chunhui;Yang Yong;Wu Pan;Wang Jicheng;Yao Shuang(CNOOC Deep Sea Development Co.,Ltd.,Zhuhai Guangdong 519000,China)

机构地区：[1]中海石油深海开发有限公司,广东珠海519000

出　　处：《山西化工》2024年第7期246-249,共4页Shanxi Chemical Industry

摘　　要：南海某平台为深水采气平台,由水下生产系统、乙二醇回收单元和生产水处理系统等单元组成。投产初期对外排生产水的生物毒性进行检测发现,生物毒性处于排放标准附近,随时有超标风险。对该平台处理工艺进行了全面分析,确定导致生物毒性偏高的主要原因为开井期间水下井口注入甲醇所致,并通过开井程序优化、甲醇注入量校核、工艺参数调整等改进措施,解决海上深水采气平台开井期间生产水生物毒性高的问题。该方法对同类气田设施提供了借鉴和指导。A certain platform in the South China Sea is a deep-water gas production platform,consisting of underwater production systems,ethylene glycol recovery units,and production water treatment systems.During the initial stage of production,the biological toxicity of the discharged production water was tested and found to be near the discharge standard,with a risk of exceeding the standard at any time.A comprehensive analysis was conducted on the treatment process of the platform,and it was determined that the main cause of high biological toxicity was the injection of methanol into the wellhead during the well opening period.Improvement measures such as optimizing the well opening program,verifying the injection amount of methanol,and adjusting process parameters were taken to solve the problem of high biological toxicity in the production water of offshore deepwater gas production platforms during the well opening period.This method provides reference and guidance for similar gas field facilities.

关 键 词：生产水 生物毒性 化学药剂 注入量 程序优化 

分 类 号：X741[环境科学与工程—环境工程]