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Ultrasonic technology for enhanced oil recovery from failing oil wells and the equipment for its implemention |
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| Authors: | Vladimir O. Abramov Marat S. Mullakaev Anna V. Abramova Igor B. Esipov Timothy J. Mason |
| Affiliation: | 1. Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninskiy prospekt 31, 119991 Moscow, Russian Federation;2. Viatech Ltd., Universitetskiy prospect, 23-1-16, 119330 Moscow, Russian Federation;3. Russian State University of Oil and Gas, Leninskiy prospect 65, GSP-1, V-296, 119991 Moscow, Russian Federation;4. Sonochemistry Centre, Faculty of Health and Life Sciences, Coventry University, CV1 5FB Coventry, UK |
| Abstract: | A new method for the ultrasonic enhancement of oil recovery from failing wells is described. The technology involves lowering a source of power ultrasound to the bottom of the well either for a short treatment before removal or as a permanent placement for intermittent use. In wells where the permeability is above 20 mD and the porosity is greater than 15% ultrasonic treatment can increase oil production by up to 50% and in some cases even more. For wells of lower permeability and porosity ultrasonic treatment alone is less successful but high production rates can be achieved when ultrasound is applied in conjunction with chemicals. An average productivity increase of nearly 3 fold can be achieved for this type of production well using the combined ultrasound with chemical treatment technology. |
| Keywords: | Oil well treatment Powerful ultrasound Downhole chemistry Enhanced oil recovery |
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