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Research Progress and Discussion of Waxy Crude Pour Point Depressants: a mini review

Author(s):

Jing Zhang, Guolin Jing*, Yang Liu, Kai Guo, Huibo Zhang and Shuo Liu  

Abstract:


The crude oils exploited in oilfields are mainly high-wax crude oils. Paraffins will precipitate, crystallize, and form a three-dimensional network structure, when the temperature falls below the wax appearance temperature (WAT), which will decrease crude oil fluidity. This results in huge challenges in oil exploitation and transportation, as well as cost control. To date, the addition of chemical pour point depressants has been a convenient and economical method to improve their low temperature fluidity. This article reviews the types of pour point depressants of crude oil and their performance mechanisms, and introduces the main research methods and progress made in the study of the performance mechanisms between pour point depressants and waxy crude oils. Finally, the development direction of pour point depressant is prospected.

Keywords:

waxy crude oil, pour point depressant, performance mechanisms, co-crystallization, flow behavior, rheology

Affiliation:

Northeast Petroleum University, College of Chemistry & Chemical Engineering, Northeast Petroleum University, College of Chemistry & Chemical Engineering, Northeast Petroleum University, College of Chemistry & Chemical Engineering, Northeast Petroleum University, College of Chemistry & Chemical Engineering, Northeast Petroleum University, College of Chemistry & Chemical Engineering, Northeast Petroleum University, College of Chemistry & Chemical Engineering



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