A role of ultrasonic frequency and power on oil mobilization in underground petroleum reservoirs

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Abstract

In oil industry, the reduction of oil production is of major concern as world’s necessity for oil increases. Therefore, developing and applying new techniques to mobilize residual oil left in the reservoir is important. Ultrasound technique is one of the unconventional methods to increase the productivity of oil wells, but in spite of many laboratory experiments on oil mobilization under ultrasound in porous media the precise mechanisms are weakly understood. Therefore, it is vital to perform basic experiments to achieve a good knowledge and deep insight into the mechanisms. To recognize the reason why ultrasound is able to mobilize residual oil left in pores, one must remember why oil droplet is trapped. Residual oil is left in pores because of insisting capillary forces. So, in this paper a mechanism related to capillary forces are developed to clarify the effect of ultrasound on mobilization of residual oil in porous media. In addition, some experiments are conducted with a 2D glass micro-model in which the mobilization of oil is observed using a digital microscope and camera. It was concluded from the result of experiments that the oil mobilization was proportional to ultrasound power and frequency.
Original languageEnglish
Pages (from-to)29-36
JournalJournal of Petroleum Exploration and Production Technology
Volume2
Issue number1
DOIs
Publication statusPublished - 2012

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Petroleum reservoirs
mobilization
Ultrasonics
petroleum
oil
porous medium
Porous materials
Oils
Experiments
experiment
oil well
oil industry
Oil wells
oil production
droplet
glass
ultrasound
Microscopes
productivity
Productivity

Cite this

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title = "A role of ultrasonic frequency and power on oil mobilization in underground petroleum reservoirs",
abstract = "In oil industry, the reduction of oil production is of major concern as world’s necessity for oil increases. Therefore, developing and applying new techniques to mobilize residual oil left in the reservoir is important. Ultrasound technique is one of the unconventional methods to increase the productivity of oil wells, but in spite of many laboratory experiments on oil mobilization under ultrasound in porous media the precise mechanisms are weakly understood. Therefore, it is vital to perform basic experiments to achieve a good knowledge and deep insight into the mechanisms. To recognize the reason why ultrasound is able to mobilize residual oil left in pores, one must remember why oil droplet is trapped. Residual oil is left in pores because of insisting capillary forces. So, in this paper a mechanism related to capillary forces are developed to clarify the effect of ultrasound on mobilization of residual oil in porous media. In addition, some experiments are conducted with a 2D glass micro-model in which the mobilization of oil is observed using a digital microscope and camera. It was concluded from the result of experiments that the oil mobilization was proportional to ultrasound power and frequency.",
author = "Hossein Hamidi",
note = "Acknowledgements The authors appreciate the Faculty of Petroleum and Renewable Energy Engineering at University Technology Malaysia in Johor Bahru, Malaysia for providing laboratory facilities in completing this work.",
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T1 - A role of ultrasonic frequency and power on oil mobilization in underground petroleum reservoirs

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N1 - Acknowledgements The authors appreciate the Faculty of Petroleum and Renewable Energy Engineering at University Technology Malaysia in Johor Bahru, Malaysia for providing laboratory facilities in completing this work.

PY - 2012

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N2 - In oil industry, the reduction of oil production is of major concern as world’s necessity for oil increases. Therefore, developing and applying new techniques to mobilize residual oil left in the reservoir is important. Ultrasound technique is one of the unconventional methods to increase the productivity of oil wells, but in spite of many laboratory experiments on oil mobilization under ultrasound in porous media the precise mechanisms are weakly understood. Therefore, it is vital to perform basic experiments to achieve a good knowledge and deep insight into the mechanisms. To recognize the reason why ultrasound is able to mobilize residual oil left in pores, one must remember why oil droplet is trapped. Residual oil is left in pores because of insisting capillary forces. So, in this paper a mechanism related to capillary forces are developed to clarify the effect of ultrasound on mobilization of residual oil in porous media. In addition, some experiments are conducted with a 2D glass micro-model in which the mobilization of oil is observed using a digital microscope and camera. It was concluded from the result of experiments that the oil mobilization was proportional to ultrasound power and frequency.

AB - In oil industry, the reduction of oil production is of major concern as world’s necessity for oil increases. Therefore, developing and applying new techniques to mobilize residual oil left in the reservoir is important. Ultrasound technique is one of the unconventional methods to increase the productivity of oil wells, but in spite of many laboratory experiments on oil mobilization under ultrasound in porous media the precise mechanisms are weakly understood. Therefore, it is vital to perform basic experiments to achieve a good knowledge and deep insight into the mechanisms. To recognize the reason why ultrasound is able to mobilize residual oil left in pores, one must remember why oil droplet is trapped. Residual oil is left in pores because of insisting capillary forces. So, in this paper a mechanism related to capillary forces are developed to clarify the effect of ultrasound on mobilization of residual oil in porous media. In addition, some experiments are conducted with a 2D glass micro-model in which the mobilization of oil is observed using a digital microscope and camera. It was concluded from the result of experiments that the oil mobilization was proportional to ultrasound power and frequency.

U2 - 10.1007/s13202-012-0018-x

DO - 10.1007/s13202-012-0018-x

M3 - Article

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