Research on Treatment Technology of Production Waste Liquid in Dongfang 1-1 Gas Field
The production waste liquid of Dongfang 1-1 gas field has the characteristics of high stability,high oil content and high suspended matter content,and the original production waste liquid cannot meet the discharge standard of the sea.If the injection method is adopted,the injection well formation will be blocked,so it is necessary to treat the production waste liquid.Through the analysis of waste liquid from production of Dongfang 1-1 gas field,the treatment method of flocculation after demulsification was determined,and the types and dosage of demulsifier and water purification agent were optimized.The experimental results show that the oil content and suspended matter content of the waste liquid after treatment with demulsifier and water purification agent can be reduced to 9.1mg/L and 5.7mg/L,which can meet the reinjection and discharge standards.
gas fieldproduction waste liquiddemulsificationtreatmentresearch
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