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Title: A rock physics and seismic reservoir characterization study of the Rock Springs Uplift, a carbon dioxide sequestration site in Southwestern Wyoming

We present a reservoir geophysics study, including rock physics modeling and seismic inversion, of a carbon dioxide sequestration site in Southwestern Wyoming, namely the Rock Springs Uplift, and build a petrophysical model for the potential injection reservoirs for carbon dioxide sequestration. Our objectives include the facies classification and the estimation of the spatial model of porosity and permeability for two sequestration targets of interest, the Madison Limestone and the Weber Sandstone. The available dataset includes a complete set of well logs at the location of the borehole available in the area, a set of 110 core samples, and a seismic survey acquired in the area around the well. The proposed study includes a formation evaluation analysis and facies classification at the well location, the calibration of a rock physics model to link petrophysical properties and elastic attributes using well log data and core samples, the elastic inversion of the pre-stack seismic data, and the estimation of the reservoir model of facies, porosity and permeability conditioned by seismic inverted elastic attributes and well log data. In particular, the rock physics relations are facies-dependent and include granular media equations for clean and shaley sandstone, and inclusion models for the dolomitized limestone. Themore » permeability model has been computed by applying a facies-dependent porosity-permeability relation calibrated using core sample measurements. Finally, the study shows that both formations show good storage capabilities. The Madison Limestone includes a homogeneous layer of high-porosity high-permeability dolomite; the Weber Sandstone is characterized by a lower average porosity but the layer is thicker than the Madison Limestone.« less
Authors:
ORCiD logo [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3] ;  [4] ;  [3] ;  [5] ;  [6] ;  [1] ;  [1]
  1. Univ. of Wyoming, Laramie, WY (United States). School of Energy Resources, Dept. of Geology and Geophysics
  2. Univ. of Texas Permian Basin, Odessa, TX (United States). Dept. of Geology and Geophysics
  3. Univ. of Wyoming, Laramie, WY (United States). Dept. of Geology and Geophysics
  4. Univ. of Wyoming, Laramie, WY (United States). Carbon Management Inst.
  5. Univ. of Wyoming, Laramie, WY (United States). Dept. of Civil and Architectural Engineering
  6. Univ. of Wyoming, Laramie, WY (United States). Dept. of Chemical Engineering
Publication Date:
Grant/Contract Number:
FE0023328
Type:
Accepted Manuscript
Journal Name:
International Journal of Greenhouse Gas Control
Additional Journal Information:
Journal Volume: 63; Journal ID: ISSN 1750-5836
Publisher:
Elsevier
Research Org:
Univ. of Wyoming, Laramie, WY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; carbon dioxide sequestration; seismic reservoir characterization; rock physics; porosity; permeability
OSTI Identifier:
1369278