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RESEARCH PAPERS

Model-Assisted Analysis of Simultaneous Paraffin and Asphaltene Deposition in Laboratory Core Tests

[+] Author and Article Information
Shaojun Wang

Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, T 301 Sarkeys Energy Center, 100 East Boyd St., Norman, OK 73019shaojun_w@hotmail.com

Faruk Civan1

Mewbourne School of Petroleum and Geological Engineering, University of Oklahoma, T 301 Sarkeys Energy Center, 100 East Boyd St., Norman, OK 73019shaojun_w@hotmail.com

1

Corresponding author.

J. Energy Resour. Technol 127(4), 318-322 (Mar 17, 2005) (5 pages) doi:10.1115/1.1924466 History: Received September 21, 2004; Revised March 17, 2005

A model for analysis and interpretation of the simultaneous deposition of paraffin and asphaltene in laboratory core tests is presented. This model incorporates the mass balance equations for the oil, gas, paraffin, and asphaltene pseudocomponents; the paraffin and asphaltene solubility and deposition models; the energy and momentum balance equations; and the porosity and permeability reduction models. This model is numerically solved and validated with two sets of laboratory experimental data. It is demonstrated that the present model satisfactorily represents the simultaneous deposition of paraffin and asphaltene and the resultant damage caused on the porosity and permeability of porous media. The model is used for determination of the various process parameters with the help of the experimental data obtained by laboratory core tests.

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Copyright © 2005 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Comparison of the simulation results with the Experiment 1 data of Sutton and Roberts (7)

Grahic Jump Location
Figure 2

Comparison of the simulation results with the Experiment 2 data of Sutton and Roberts (7)

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