Abstract
Crude oil dehydration process in multi-purpose station is of great importance, in which there are a lot of confounding factors and parameters. In order to solve the dewatering difficulty in multi-purpose station of Liaohe Oilfield during operation, we designed a laboratory experiment of thermo-chemical setting dehydration, and analyze these factors impacting the liquid mixture separation of oil and water from the districts, including to liquid water content, dehydration temperature, PH value of crude oil solution, demulsifier dosing concentration, produced fluid composition. This research shows that: adjusting the technological parameters in a reasonable range, is both beneficial to dewatering and improving heavy oil dehydration effect, and of great significance of improving the downstream production standard. Key words : Heavy oil; Multi-purpose station; Crude oil emulsion; Demulsification
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