Loading...

Swelling behavior of heavy crude oil during injection of carbonated brine containing chloride anion

Lashkarbolooki, M ; Sharif University of Technology | 2019

545 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.molliq.2018.11.112
  3. Publisher: Elsevier B.V , 2019
  4. Abstract:
  5. Carbonated brine (CB) injection, known as one of the effective enhanced oil recovery processes, is highly dependent on the reservoir conditions (i.e. temperature and pressure) as well as the type of dissolved salt in aqueous solution. This study is aimed to investigate the influential parameters on the swelling of crude oil as the most important mechanism during CB injection. The swelling of crude oil in the presence of different CB solutions consisted of different salts such as KCl, NaCl, CaCl2 and MgCl2 with constant concentration of 15,000 ppm is studied using a high-pressure, high-temperature visual cell which measures the volume of drop using image processing software based on Young-Laplace method. Also, the Δ Bond number of crude oil is examined to more reliably find out the mechanisms. According to the results, it can be concluded that the solubility of CO2 in aqueous phase is not the only parameter affecting the swelling behavior, and that the crude oil and ion type as well as temperature have remarkable effect on the mobility of CO2 molecules and their partitioning from aqueous phase toward oil phase. © 2018 Elsevier B.V
  6. Keywords:
  7. Bond number ; Carbonated brine ; Crude oil ; EORs ; Swelling ; Carbon dioxide ; Carbonation ; Enhanced recovery ; Image processing ; Magnesium compounds ; Potassium compounds ; Sodium chloride ; Bond numbers ; Enhanced oil recovery ; EORs ; High temperature ; Image-processing software ; Reservoir conditions ; Swelling behavior ; Temperature and pressures
  8. Source: Journal of Molecular Liquids ; Volume 276 , 2019 , Pages 7-14 ; 01677322 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0167732218346506