高矿化度条件下示踪剂NH_4NO_3浓度的测定  

Quantitative Determination of Ammonium Nitrate as Tracer in Highly Mineralized Oilfield Produced Water

作　　者：乔保林[1] 周旭煌[1] 李中原[2] 唐锡元[1] 杨朝光[1] 王志鹏[1] 乔宏宾[1] 熊玉宾[1] 

机构地区：[1]中原油田勘探开发科学研究院,河南濮阳457001 [2]中原油田天然气产销总厂

出　　处：《油田化学》2001年第1期87-89,96,共4页Oilfield Chemistry

摘　　要：通常情况下 ,溶液中某一离子的定量分析都是在盐含量很低的情况下进行的 ,但油田示踪剂的分析却需要在高矿化度条件下完成 ,特别是在中原油田的产出水中。本文分析了水矿化度及其中钙镁离子对分析硝酸根离子的影响 ,并提出了解决这一问题的办法 ,形成了完整的分析方法。新方法具有分析范围宽 ,精密度好 ,准确度高的特点。Some improvements are made in quantitatively determining NO - 3 in highly mineralized oilfield produced water by classical spectrophotometric method, including ①introducing powdered zink inert particulated material in mixture as reducing agent instead of zink salt mixture; ② adding 2 mL of ethanol to stabilize the chromophoric azo compound formed; ③ performing absorbance determinations at λ=526 nm in time interval 15—45 min. The range of detection is of 0—50 mg/L and the accurancy of determinations is of 98—102.5%.

关 键 词：硝酸铵 示踪剂 定量分析 分光光度法 油田采出水 高矿化度 

分 类 号：TE39[石油与天然气工程—油气田开发工程] O657.32[理学—分析化学]