西南石油大学学报(自然科学版)

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Optimization in Heavy Oil Thermochemistry Dehydration Process

Kou Jie1, Yang Wen1, Wang Xiuzhen2   

  1. 1. College of Pipeline and Civil Engineering,China University of Petroleum(East China),Qingdao,Shandong 266580,China
    2. Petroleum Engineering Design Co. Ltd.,SINOPEC,Dongying,Shandong 257026,China
  • Online:2013-12-01 Published:2013-12-01

Abstract:

The experimental study of heavy oil thermochemistry dehydration was carried out on the base of heavy oil mixed with
a certain proportion of diluent oil,combined with the optimization demulsifier. 4050 demulsifier had better dehydration effect
for the heavy oil and diluent oil used,and through the comparison of the viscosity reduction rate and the dehydration effect,
the ratio of dilute proportion 1:1 was determined. On this basis,the impact of temperature,concentration of demulsifier on
dehydration were studied,and the impact of water cut content on the effective concentration range of demulsifier and effective
temperature range were also studied. The experimental results show that:at certain demulsifier concentration range,an effective
concentration range may not exist at the lower temperature,which will be larger at higher temperatures;at a certain dehydration
temperature,demulsifier effective concentration range will be larger as water cut content increases;at a certain demulsifier
concentration,demulsification effective temperature range will also be larger as water cut content increases.

Key words: heavy oil, thermochemistry, dehydration, demulsifier, dilute proportion