Application Analysis of New Technologies for Wastewater Treatment in Offshore Oil and Gas Field Production
During the production process of offshore oil and gas fields,a large amount of oily wastewater is generated.Due to factors such as production dosing,the quality of the wastewater produced by the oil and gas fields is very poor.In the production of deep-water gas fields,chemical agents such as methanol and ethylene glycol are added,resulting in poorer wastewater quality compared to oil fields.Untreated gas field wastewater is directly discharged,which can seriously pollute the marine environment.In response to the water quality differences in production wastewater from different facilities in offshore oil and gas fields,a study was conducted on the process methods for removing oil from production wastewater,and the treatment processes and effects of production wastewater in the sea area were investigated.Drawing on the electric demulsification technology in crude oil dehydration,a new production wastewater treatment process using the electric drive agglomeration demulsification principle was proposed and successfully applied,reducing the oil content of discharged production wastewater from 0.003 0%to 0.001 5%,greatly protecting the marine environment.
oil and gas fieldsproduction wastewaterwater qualityelectric demulsificationelectric driven coalescence and demulsificationoil content
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