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TECHNICAL PAPERS

Modeling of Multiphase Wax Deposition

[+] Author and Article Information
G. M. Elphingstone, K. L. Greenhill, J. J. C. Hsu

Upstream Technology Department, Texaco, 3901 Briarpark, Houston, TX 77042-5301

J. Energy Resour. Technol 121(2), 81-85 (Jun 01, 1999) (5 pages) doi:10.1115/1.2795072 History: Received October 23, 1998; Revised March 09, 1999; Online November 06, 2007

Abstract

The environmental conditions typically encountered in deepwater petroleum operations lead to a number of production problems. The cold environment promotes particle formation and deposition of paraffinic compounds in a waxy crude system. These solids can build up inside flowlines and significantly decrease production rates. The wax deposition scale-up technique used for single phase has been applied to multiphase flow conditions. The resulting semi-empirical model is used to simulate multiphase transport of waxy crude oil through integration with a commercial steady-state pipeline simulation package. The wax model is a semi-empirical representation of the wax deposition phenomena. The model incorporates the effects of diffusion and shear through the wax deposition tendency. The key parameters are first measured in a laboratory flow loop.

Copyright © 1999 by The American Society of Mechanical Engineers
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