THERMAL SCIENCE

International Scientific Journal

SOLVING PARAFFIN DEPOSITION PROBLEM IN TUBING BY HEATING CABLE APPLICATION

ABSTRACT
The production of paraffin-base crude is expensive and more complex then of other oil types. In northern Serbia, where majority of oil and gas fields are located, about 25% of oil production accounts for the high paraffin oil. During this oil type production, the paraffin deposition occurs in tubing's upper zone, ranging from 700 m depth upwards. In this article is presented original way of heating cable application, for solving paraffin deposition problem in tubing that can be easy and quickly installed in the well. Paraffin deposition problem is solved by heating, and at the same time the increased temperature causes the oil viscosity reduction resulting with improved oil flow rate. Application of this method and the results are exemplified by the flowing well B-3 where are used two different heating cables. This method, which is very successfully solves the problem of paraffin deposition in the tubing, can also be applied to wells producing by different artificial lift methods.
KEYWORDS
PAPER SUBMITTED: 2009-04-02
PAPER REVISED: 2009-05-21
PAPER ACCEPTED: 2009-06-24
DOI REFERENCE: https://doi.org/10.2298/TSCI1001247D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE 1, PAGES [247 - 253]
REFERENCES
  1. Kane, M., et al., Morphology of Paraffin Crystals in Waxy Crude Oils Cooled in Quiescent Conditions and under Flow, Fuel, 82 (2003), 2, pp. 127-135
  2. Roopa, I., Dawe, R. A., Samuel,T., Down Hole Heating: Productivity Ratio Improvements, Dangers of Misconceptions, Petroleum Science and Technology, 23 (2005), 5 & 6, pp. 681-692
  3. Danilović, D., Karović Maričić, V., Method of Tubing Electric Heating Application for Solving Paraffin Deposition Problem during Oil Production, Termotehnika, 34 (2008), 3, pp. 1-8
  4. Venkatesana, R., et al., The Strength of Paraffin Gels Formed under Static and Flow Conditions, Chemical Engineering Science, 60 (2005), 13, pp. 3587-3598
  5. Wang, X., et al., New Trend in Oilfield Flow Assurance Management: A Review of Thermal Insulating Fluids, Proceedings, International Oil & Gas Conference and Exhibition, Society of Petroleum Engineers, China, 2006, Vol. 1, pp. 245-252
  6. Sierra, R., et al., Promising Progress in Field Application of Reservoir Electrical Heating Methods, SPE Paper Number 69709, 2001
  7. Danilović, D., System for Thermal Paraffin Removal in Tubing, Intellectual Property Journal, Belgrade, 2009, No. 1069 U
  8. ***, Technical documentation of Thermon cables factory, USA, www.thermon.com
  9. ***, Technical documentation of Jagodina cables factory, Serbia, www.fks.co.rs
  10. ***, PipeSim Software, Schlumberger Logelco Inc., www.slb.com

© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence