Water coning is a common problem in oil reservoirs that are underlain by an aquifer. In most cases, this problem is addressed after a watercone reaches a production well, with the irreversible consequences for oil production. Here we develop an electromagnetic tool technology to monitor the near wellbore fluid saturations in the context of water coning. We demonstrate value of the technology by conducting reservoir simulations for an oil producer and the electromagnetic simulations based on the computed fluid distributions. These simulations capture changes in the electromagnetic signals as the watercone approaches the wellbore, showing that it is possible to detect a waterfront at a distance of more than 20 meters away from the well bottom. The source and receiver are located in the production well and the signals are monitored in real time. We use the three-coil electromagnetic devices that are 5–10 meter long and consider only the vertical component of the magnetic field.


Article metrics loading...

Loading full text...

Full text loading...


  1. Arabian-American-Oil-Company-Staff
    [1959] Ghawar Oil Field, Saudi Arabia. AAPG Bulletin, 43(2), 434–454.
    [Google Scholar]
  2. Archie, G.E.
    [1942] The Electrical Resistivity Log as an Aid in Determining Some Reservoir Characteristics. Trans AIME, (146), 54–62.
    [Google Scholar]
  3. Bournazel, C. and Jeanson, B.
    [1971] Fast Water-Coning Evaluation Method. In: Fall Meeting of the Society of Petroleum Engineers of AIME. Society of Petroleum Engineers.
    [Google Scholar]
  4. Egbe, T. and Appah, D.
    [2005] Water Coning Diagnosis Using Spectral Analysis. In: Nigeria Annual International Conference and Exhibition. Society of Petroleum Engineers.
    [Google Scholar]
  5. Kuo, M.
    [1983] A Simplified Method for Water Coning Predictions. In: SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers.
    [Google Scholar]
  6. Lake, L. and Holstein, E. (Eds.)
    [2007] Petroleum Engineering Handbook, Volume V: Reservoir Engineering and Petrophysics.
    [Google Scholar]
  7. Muskat, M. and Wycokoff, R.
    [1935] An Approximate Theory of Water-coning in Oil Production. Transactions of the AIME, 114(01), 144–163.
    [Google Scholar]
  8. Ould-amer, Y., Chikh, S. and Naji, H.
    [2004] Attenuation of water coning using dual completion technology. Journal of Petroleum Science and Engineering, 45(1–2), 109–122.
    [Google Scholar]
  9. Persoff, P., Pruess, K., Benson, S., Wu, Y., Radke, C., Witherspoon, P. and Shiraki, Y.
    [1990] Aqueous Foams for Control of Gas Migration and Water Coning in Aquifer Gas Storage. Energy Sources, 12(4), 479–497.
    [Google Scholar]
  10. Seright, R.S., Liang, J. and Sun, H.
    [1993] Gel treatments in production wells with water-coning problems. In Situ, 17(3), 243–272.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error