Wax deposition in horizontal wells

Date

2000-01-01

Author

Ozbayoglu, M.E.
Demiral, B.
Kök, Mustafa Verşan

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In this research, wax deposition in horizontal well bores was studied. In a horizontal well, the main mechanism for wax appearance is the pressure change rather than the temperature change. Six different thermodynamic models were improved for horizontal wells by adding a pressure function, and a computer program was developed to simulate the precipitation phenomena in horizontal wells. Solid-liquid equilibrium constants for each pseudo-component were calculated. Critical pressures and overall solid mole factions of the crude oil at different error ranges are determined. In addition to these, the changes in productivity index due to wax deposition for steady stare and pseudo-steady state conditions were examined by the addition of a "wax factor". It was observed that pressure change was slightly effective on wax appearance in horizontal wells.

Subject Keywords

Wax deposition, Horizontal well, and crude oil, Wax appearance temperature

URI

https://hdl.handle.net/11511/33236

Journal

Petroleum Science and Technology

DOI

https://doi.org/10.1080/10916460008949839

Collections

Department of Petroleum and Natural Gas Engineering, Article

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Citation Formats

M. E. Ozbayoglu, B. Demiral, and M. V. Kök, “Wax deposition in horizontal wells,” Petroleum Science and Technology, pp. 177–193, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33236.