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he li kong zhi zuan jing fei shui hui yong lv yi jian qing huan jing wu ran
Pages: 28-32
Year: Issue:  4
Journal: Environmental Protection of Oil & Gas Fields

Keyword:  Drilling fluid circulating systemWaste water reinjectiOnEnvi-ronmental pollutionDrilling fluid performance controlEnvirommental protectionOptimization;
Abstract: lrrationally and unduly emphasizing the reuse of waste water from drilling is one of the important causes to make the treatment of waste water frorn drilling rather low in quality. Now according to the characteristics of drilling operation,the necessity of porperly controlling the reuse ratio of waste water frorn drilling has been analysed and discussed; besides, a method of controlling reuse ratio by stages has been put forward. On-the-spot practice shows that on the basis of putting this method into effect along with some effective auxiliary measures,it will effectively raise the qualifica-tion rate of waste water from drilling and reduce the enviromnental pollution caused by waste water from drilling.
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