海上油气田水质分析新方法

The improved method of total water analysis for offshore oilfield

胡涛 刘杰 张瑞环

Hu Tao Liu Jie Zhang Ruihuan

中海石油上海采油技术服务分公司, 上海 200030; 东海西湖石油天然气有限公司, 上海 200030

CNOOC Shanghai Oilfield Technology Services Company, Shanghai 200030; The East China Sea XiHu Oil & Gas Operating Company, Shanghai 200030

由于海上油气田目前应用行业标准在现场水质检测时存在缺陷,特别是CO32-和HCO3-等离子的特殊易变性,因此开发出一套适合于现场的快速、准确全新水质分析方法具有重要意义。上海采油技术服务公司首次利用CO2等离子选择性电极对海上油田水中易变离子用仪器直接测定,得到了现场验证。该离子进行测定并与传统的酸碱滴定方法进行对比发现,CO2电极法测定与酸碱滴定法测定结果基本一致,且方法更简便,更适合现场测定。

It is important to measure the concentration of the CO32- and HCO3- ions locally and quickly due to their special changeability and the disadvantages of the present analytical standard.CO2 and other ion selective elect rodes was used to determine the changeable ions in water of offshore oilfield for the first time. Compared with traditional acid-base tit ration, the results of selective elect rodes are almost the same.Additionally, it is more convenient and suitable for the local determination of the CO32- and HCO3- ions by using the CO2 electrode.

https://doi.org/10.3969/j.issn.1008-2336.2010.01.053