How Do Methane, Carbon Dioxide or Fatty Acids Affect Waxy Crude Oils?
نویسندگان
چکیده
In the oil and gas industry, wax formation deposition are common problems, particularly during production transportation. To better understand expected behaviour of a given waxy crude consequently select best solution to prevent deposition, it is vital conduct laboratory tests or numerical simulations model its performance. For Brazilian field, phase 17 oils was modelled using Multiflash software. tune model, were used, including true boiling point curves viscosity tests. This study followed two stages: first allowed characterization appearance temperature (WAT) determination precipitation for these samples, second stage evaluation impact on after addition methane (CH4), carbon dioxide (CO2) fatty acid (CH3(CH2)nCOOH). Results showed that WAT varied between 47.5 °C 51.6 samples at atmospheric pressure, considering differential scanning calorimetry (DSC) method. Furthermore, percentage mass formed 13.3% 18.3%. By adding aforementioned chemicals as an inhibitor, possible observe reduction in paraffin tendency. Inhibition compared terms effectiveness studied, concluded myristic (C14:0), oleic (C18:1), palmitic (C16:0), lauric (C12:0) most effective reducing value. fact, when 25% mole fraction, CH4 CO2 can reduce value by up 4%, but results strongly dependent fluid pressure. Myristic 5%, less pressure dependent.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16010406