油田深井废弃油基钻井液组成及环境影响评价

Component analysis and environment hazard evaluation of oil-based drilling fluid waste used in drilling deep well of oil-field

分析了油田深井废弃油基钻井液的组成,对油田深井废弃油基钻井液的环境危害性进行了评价。经检测,油田深井废弃油基钻井液的主要污染物为石油类有机物,其浸出液中苯、甲苯、乙苯、二甲苯等均超出标准,根据标准判定为危险废物。

The component of oil-based drilling fluid waste used in drilling deep well of oil-field is analysed, and its environ- ment hazard is evaluated. The analyzing results show that the main pollutants in oil-based drilling fluid waste are organies in oil. The content of benzene series such as benzene, methylbenzene and ethylbenzene in lixivium exceeds the standard. Accord- ing to the standard, the oil-based drilling fluid waste is hazardous waste.