Seismic low-frequency effects from oil-saturated reservoir zones

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We consider the frequency dependence of seismic reflections from a thin (compared to the dominant wavelength), fluid saturated reservoir for the cases of oil and water saturation. Reflections from a thin, water or oil-saturated layer have increased amplitude and delayed travel time at low frequencies if compared with reflections from a gas-saturated layer. This effect was observed for both ultrasonic lab data and seismic field data. One set of field data revealed high correlation of low frequency processed image for two different production horizons represented by fractured shale and sandstone. Another set was processed for the purpose of contouring of ... continued below

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Goloshubin, Gennady M.; Korneev, Valeri A. & Vingalov, Vjacheslav M. April 16, 2002.

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We consider the frequency dependence of seismic reflections from a thin (compared to the dominant wavelength), fluid saturated reservoir for the cases of oil and water saturation. Reflections from a thin, water or oil-saturated layer have increased amplitude and delayed travel time at low frequencies if compared with reflections from a gas-saturated layer. This effect was observed for both ultrasonic lab data and seismic field data. One set of field data revealed high correlation of low frequency processed image for two different production horizons represented by fractured shale and sandstone. Another set was processed for the purpose of contouring of oil/water contact, and reveal very good correlation with available well data. The frequency dependent amplitude and phase reflection properties can be used for detecting and monitoring thin liquid saturated layers.

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OSTI as DE00797860

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  • SEG International Exposition and Annual Meeting, Salt Lake City, UT (US), 10/06/2002--10/11/2002

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  • Report No.: LBNL--50638
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 797860
  • Archival Resource Key: ark:/67531/metadc739647

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  • April 16, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 4, 2016, 2:22 p.m.

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Goloshubin, Gennady M.; Korneev, Valeri A. & Vingalov, Vjacheslav M. Seismic low-frequency effects from oil-saturated reservoir zones, article, April 16, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc739647/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.