A Comparative Research of Microwave, Conventional-Heating, and Microwave/Chemical Demulsification of Tahe Heavy-Oil-in-Water Emulsion
- Nana Sun (Petroleum Engineering College, Xi'an Shiyou University) | Huayi Jiang (Petroleum Engineering College, Xi'an Shiyou University) | Yulong Wang (Petroleum Engineering College, Xi'an Shiyou University) | Aojiang Qi (Petroleum Engineering College, Xi'an Shiyou University)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- May 2018
- Document Type
- Journal Paper
- 371 - 381
- 2018.Society of Petroleum Engineers
- organic alkali, microwave chemical demulsification, microwave radiation, amphoteric, conventional heating demulsification
- 3 in the last 30 days
- 234 since 2007
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We consider the emulsion stabilized by organic base and compound surfactants too stable to separate automatically. To obtain an efficient demulsification technique, the influences of microwave-radiation, conventional-heating, and microwave/chemical methods on the demulsification of heavy-oil-in-water (O/W) emulsions were investigated separately. The results showed that as microwave-radiation time increased, the water-separation rate increased initially and then decreased; with increasing microwave-radiation power, the water-separation rate increased sharply first and then increased moderately; and for both microwave and conventional heating, a higher temperature did not imply a better demulsification effect. In addition, the demulsification efficiency was higher and the separated water was clearer by use of the microwave/chemical approach, which needs less demulsifier in a shorter time for O/W emulsion.
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