Mathematical Modelling of Wax Deposition in Crude Oil Pipeline Systems


KÖK M. V., Saracoglu O.

Proceedings - SPE Asia Pacific Oil and Gas Conference and Exhibition, Winning Technology and Teamwork, APOGCE 2000, Brisbane, Avustralya, 16 - 18 Ekim 2000, ss.1183-1189 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.2118/64514-ms
  • Basıldığı Şehir: Brisbane
  • Basıldığı Ülke: Avustralya
  • Sayfa Sayıları: ss.1183-1189
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Deposition of wax on the wall of the crude oil pipelines is regarded as a problem since the pipeline diameter is reduced. Therefore more power is required to force the same amount of crude oil through the system. In this study, a mathematical model is developed for estimation of wax deposition in crude oil pipeline systems. A computer program was developed to simulate wax deposition phenomena. Each component is characterized by weight fraction, heat of fusion and melting point temperature. Temperature profile along the pipeline, solid-liquid equilibrium constant, wax mole fraction and wax thickness along the pipeline were calculated. This computer program was applied to Kirkuk - Ceyhan crude oil pipeline system. It was observed that wax thickness, after a year, is approximately 0.34 mm and temperature declined from 303 K to around 295 K. The wax mole fraction after a year is approximately 0.2225. The solid-liquid equilibrium constant for the first component was around 0.29 and 355 for the second component after a year.