Side-line application of short-flow reinjection process of produced liquid in offshore oil field in a heavy oil field in Bohai Sea
The treatment of oily wastewater is one of the key links in the operation of offshore oil and gas field production platform.In order to improve the economic benefit and the efficiency of oil-water separation,the high efficiency micro-air flotation(AMFD)oil removal separator,small combined fiber coalescing(CFC)oil water separator and medium particle coalescing filtration technology(MPE)separator were developed in this study.The small-scale continuous industrial side-line test was carried out on an offshore platform of CNPC in Bohai Sea to verify the oil-water separation performance of the equipment in the actual industrial application environment.The results show that,compared with the original process of the platform,the total dwell time of the"AMFD+CFC+MPE"process is reduced by 87%,the use of demulsifier and water clarifier is cancelled,and the amount of reverse demulsifier is reduced by 22%.All effluent indicators meet the standard of the platform reinjection water injection,and the treatment effect is better than the original process of the platform.
Offshore platformOil-water separationSide line testProduce water degreasing
NETL
NSTL
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