Abstract
Wax deposition tests under single-phase and two-phase dispersed water-in-oil at 16 and 35% water cut (WC) were conducted in a mini pilot-scale flow loop by using South Pelto crude oil. The initial inner wall temperature (Tw,ini) and the bulk fluid temperature (Tb) were controlled to be 85–87 °F and 105–107 °F, respectively, throughout the experimental program. The initial Reynolds number (Reini) of tests conducted in rectangular (TS1) and circular (TS2) test sections was in the range of 400–4300 and 1000–5300, respectively. A high temperature gas chromatograph with flame ionization detector (HTGC-FID) and a differential scanning calorimeter (DSC) were used to analyze wax deposits. The results revealed that the 16 and 35% water cut tests yielded deposits containing only a trace amount of water (less than 2% w/w). The crossover behavior of the thickness versus time trends for different flow conditions was observed. The initial thickness growth rate increases with the flow rate. After the crossover period e...
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