CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS

Burns, Daniel R; Toksoz, M Nafi

doi:10.2172/837070

Title: CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS

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Abstract

Numerical modeling and field data tests are presented on the Transfer Function/Scattering Index Method for estimating fracture orientation and density in subsurface reservoirs from the ''coda'' or scattered energy in the seismic trace. Azimuthal stacks indicate that scattered energy is enhanced along the fracture strike direction. A transfer function method is used to more effectively indicate fracture orientation. The transfer function method, which involves a comparison of the seismic signature above and below a reservoir interval, effectively eliminates overburden effects and acquisition imprints in the analysis. The transfer function signature is simplified into a scattering index attribute value that gives fracture orientation and spatial variations of the fracture density within a field. The method is applied to two field data sets, a 3-D Ocean Bottom Cable (OBC) seismic data set from an offshore fractured carbonate reservoir in the Adriatic Sea and a 3-D seismic data set from an onshore fractured carbonate field in the Middle East. Scattering index values are computed in both fields at the reservoir level, and the results are compared to borehole breakout data and Formation MicroImager (FMI) logs in nearby wells. In both cases the scattering index results are in very good agreement with the wellmore »« less

Authors:: Burns, Daniel R; Toksoz, M Nafi

Publication Date:: Fri Feb 04 00:00:00 EST 2005

Research Org.:: Massachusetts Institute of Technology (US)

Sponsoring Org.:: (US)

OSTI Identifier:: 837070

DOE Contract Number:: FC26-02NT15346

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: 4 Feb 2005

Country of Publication:: United States

Language:: English

Subject:: 58 GEOSCIENCES; 02 PETROLEUM; FRACTURED RESERVOIRS; GEOLOGIC FRACTURES; ORIENTATION; OVERBURDEN; PERMEABILITY; COMPUTERIZED SIMULATION; STRESS ANALYSIS; SEISMIC SURVEYS

Citation Formats


                    Burns, Daniel R, and Toksoz, M Nafi. CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS.  United States: N. p., 2005. 
        Web.  doi:10.2172/837070.

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                    Burns, Daniel R, & Toksoz, M Nafi. CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS.  United States.  https://doi.org/10.2172/837070

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                    Burns, Daniel R, and Toksoz, M Nafi. 2005.  
        "CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS".  United States.  https://doi.org/10.2172/837070.  https://www.osti.gov/servlets/purl/837070.

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@article{osti_837070,

  title        = {CHARACTERIZATION OF IN-SITU STRESS AND PERMEABILITY IN FRACTURED RESERVOIRS},

  author       = {Burns, Daniel R and Toksoz, M Nafi},

  abstractNote = {Numerical modeling and field data tests are presented on the Transfer Function/Scattering Index Method for estimating fracture orientation and density in subsurface reservoirs from the ''coda'' or scattered energy in the seismic trace. Azimuthal stacks indicate that scattered energy is enhanced along the fracture strike direction. A transfer function method is used to more effectively indicate fracture orientation. The transfer function method, which involves a comparison of the seismic signature above and below a reservoir interval, effectively eliminates overburden effects and acquisition imprints in the analysis. The transfer function signature is simplified into a scattering index attribute value that gives fracture orientation and spatial variations of the fracture density within a field. The method is applied to two field data sets, a 3-D Ocean Bottom Cable (OBC) seismic data set from an offshore fractured carbonate reservoir in the Adriatic Sea and a 3-D seismic data set from an onshore fractured carbonate field in the Middle East. Scattering index values are computed in both fields at the reservoir level, and the results are compared to borehole breakout data and Formation MicroImager (FMI) logs in nearby wells. In both cases the scattering index results are in very good agreement with the well data. Field data tests and well validation will continue. In the area of technology transfer, we have made presentations of our results to industry groups at MIT technical review meetings, international technical conferences, industry workshops, and numerous exploration and production company visits.},

  doi          = {10.2172/837070},

  url          = {https://www.osti.gov/biblio/837070},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Feb 04 00:00:00 EST 2005},

  month        = {Fri Feb 04 00:00:00 EST 2005}

}

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