Petroleum Science

, Volume 7, Issue 4, pp 502–508 | Cite as

Heavy-organic particle deposition from petroleum fluid flow in oil wells and pipelines

  • Joel Escobedo
  • G. Ali MansooriEmail author


Suspended asphaltenic heavy organic particles in petroleum fluids may stick to the inner walls of oil wells and pipelines. This is the major reason for fouling and arterial blockage in the petroleum industry. This report is devoted the study of the mechanism of migration of suspended heavy organic particles towards the walls in oil-producing wells and pipelines. In this report we present a detailed analytical model for the heavy organics suspended particle deposition coefficient corresponding to petroleum fluids flow production conditions in oil wells. We predict the rate of particle deposition during various turbulent flow regimes. The turbulent boundary layer theory and the concepts of mass transfer are utilized to model and calculate the particle deposition rates on the walls of flowing conduits. The developed model accounts for the eddy diffusivity, and Brownian diffusivity as well as for inertial effects.

The analysis presented in this paper shows that rates of particle deposition (during petroleum fluid production) on the walls of the flowing channel due solely to diffusion effects are small. It is also shown that deposition rates decrease with increasing particle size. However, when the process is momentum controlled (large particle sizes) higher deposition rates are expected.

Key words

Asphaltene Brownian deposition coefficient diffusivity diamondoids heavy organic particles paraffin/wax particle deposition petroleum fluid prefouling behavior production operation suspended particles turbulent flow 


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Copyright information

© China University of Petroleum (Beijing) and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.University of Illinois at ChicagoChicagoUSA

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