陶氏FILMTEC™SR90元件含有纳滤膜，用于从海水中选择性去除海水中的硫酸盐，用于海上石油生产中的注水注水作业，有助于防止硫酸钡和硫酸锶结垢沉淀，并控制/减轻含钡和锶的储层的酸化。这种纳滤膜在低压下运行效率非常高，同时也去除了大于0.001微米的所有颗粒，从而使高质量的注入水不含二氧化硅和细菌，从而确保反映初始储层条件的持续注入速率。

DOW FILMTEC™ SR90 Elements contain a nanofiltration membrane that is designed to selectively remove sulfate from seawater used for waterflood injection operations in offshore oil production, helping to prevent barium and strontium sulfate scale precipitation and to control/mitigate souring in reservoirs containing barium and strontium. This nanofiltration membrane, operating very efficiently at lower pressures, also removes all particles greater than 0.001 microns, resulting in high-quality injection water free of silica and bacteria, thereby ensuring continued injection rates reflective of initial reservoir conditions.

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