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Paraffin Deposition Phenomena in Crude Oil Pipelines

  • James P. Brill
Conference paper
  • 172 Downloads
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 43)

Abstract

When oil and gas are produced from wells drilled in deep water environments, the fluids undergo rapid temperature reductions as a result of heat transfer to the surrounding cold water. Typical sea floor temperatures in 2,000-m water depths are often about 5 °C. When the oil temperature near the pipe wall cools below the cloud point or wax appearance temperature, deposition of paraffin on the pipe wall begins. Predicting the phenomena of paraffin deposition requires combining computations for heat transfer, phase equilibrium thermodynamics, fluid dynamics and deposition mechanisms, some of which are not well understood for either single phase or multiphase flow conditions. Once started, paraffin deposition can continue until significant reductions occur in the pipe cross-sectional area available for flow, sometimes resulting in total blockage.

Keywords

Pipe Wall Radial Temperature Gradient Cloud Point Temperature Test Pipe Shear Dispersion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 1998

Authors and Affiliations

  • James P. Brill
    • 1
  1. 1.Petroleum Engineering Dept.The University of TulsaUSA

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