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Based the experiment of gas-liquid two-phase flow in horizontal pipes, a lot of datas of pressure, pressure difference were analyzed statistically, obtained and summarized the characteristics of probability density function (PSD) and power spectral density function (PDF) on three flow regime: stratified flow, slug flow, annular flow. And compared characteristics of PSD and PDF on pressure, pressure...
Liquid holdup is one of the important parameters in the calculation of multiphase flow, annular flow is a common flow regime in the condensating natural gas pipeline. In this paper, based the momentum equation, combined with pig experimental data of gas-liquid two-phase annular flow in large-scale loop, calculated the theoretical liquid holdup. The calculated theoretical data and experimental date...
Routine dehydration can't be satisfied the practical demand because of the heavier, the higher salinity and the more seriously demulsification of oil. The factors affecting the desalting and dewatering during the ultrasonic pretreatment of crude oil were investigated, including electric field strength, ultrasonic frequency, field temperature, the settlement time, pulse time and working mode, etc....
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