Determination of the Density of Water Emulsions in the Crude Oil Dehydration Process

Autor: Sohrab Zendehboudi, Alireza Bahadori, Ahmad Jamili, Gholamreza Zahedi
Rok vydání: 2015
Předmět:
Zdroj: Petroleum Science and Technology. 33:327-334
ISSN: 1532-2459
1091-6466
DOI: 10.1080/10916466.2014.977392
Popis: The salt elimination from produced crude oil is an important stage in oilfield processing and it is considered as a compulsory requirement in the oil industry. In most cases, salt is found a dissolved component in the brine phase in contact with oil. Different compositions of various salts might exist in the brine; however, sodium chloride (NaCl) has the highest fraction in the solution. The water existing in the crude oil is seen as very small drops dispersed in the bulk of oil. In the current study, a simple predictive strategy for density determination of aqueous salty solution in crude oil as a function of salinity (in vol% of sodium chloride concentration), temperature, and pressure is proposed through combination of an Arrhenius-type asymptotic exponential function and the relationship introduced by Spivey et al. (2004). The developed method predicts the amount of salt in the crude oil for temperatures up to 373 K, sodium chloride concentrations up to 250,000 ppm (25% by volume), and maximum pressur...
Databáze: OpenAIRE