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采用OECD推荐的需氧性简易生物降解能力实验——带盖小瓶海水实验法,对7种钻井液添加剂的生物降解性进行了较为详细的研究。研究结果表明,7种钻井液添加剂在所研究的浓度(20mg/L)范围内均能发生生物降解,其降解难易程度与分子结构密切相关,生物可降解性顺序为:淀粉类产品>烯类单体聚合物>含芳香烃的添加剂
The biodegradability of seven drilling fluid additives was studied in detail using the OECD recommended aerobic simple biodegradability experiment - covered vial seawater experiment. The results showed that seven kinds of drilling fluid additives could biodegrade in the range of 20 mg / L, and the degree of degradation was closely related to the molecular structure. The order of biodegradability was starch product> alkene Monomeric Polymers> Aromatics-Containing Additives