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Biodegradability evaluation of organic additives of drilling fluid used in sea boring
Author(s): 
Pages: 45-47
Year: Issue:  6
Journal: DRILLING FLUID & COMPLETION FLUID

Keyword:  钻井液有机添加剂生物降解性累计耗氧量法环境保护海上钻井;
Abstract: 随着海洋石油的勘探开发,钻井液有机添加剂不可避免地进入海洋,因此在海洋勘探开发过程中应选择环保性能好,即生物降解性能好的有机物添加剂.用累计耗氧量法测定了海洋钻井液有机添加剂的生物降解性,研究评价了有机添加剂的生物降解规律和机理,探讨了有机物生物降解性同其化学结构的内在联系,为海洋勘探开发过程中选择环保性能好的有机物添加剂提供理论依据.总结实验结果发现:淀粉类(如DFD-140和FI-E1等)最容易生物降解;其次是纤维素类(如MV-CMC等)和烯类单体聚合物(如PAM和PHP);而沥青类、两性离子类则难以生物降解,有的甚至对生物降解起抑制作用.
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