Upscaling of a proxy parameter for pore structure in sedimentary rocks Conference Paper uri icon

abstract

  • A pore structure parameter called frame flexibility factor previously derived from poroelasticity has been found to explain the effects of pore structure on elastic properties, to characterize quantitatively the carbonate pore types, and to help estimate permeability from wave velocity measurements. Incorporation of this pore-structure proxy (PSP) parameter in carbonate rock physics model also helps to interpret correctly timelapse (4D) seismic difference in terms of saturation variation. In this report, a detailed upscaling theory of this PSP parameter is presented. The volumetric averaging is used for upscaling density, porosity, and compliance. Unlike other averaging algorithms, the poroelasticity model itself is further used to obtain the averaged PSP parameter, to be consistent with the underlying physical principles. Upscaling procedure is illustrated using the MOBIL AVO data set available in the public domain. This PSP upscaling theory should be valid for both core-to-log and log-to-seismic upscaling in both sandstone and carbonate rocks. 2007 Society of Exploration Geophysicists.

name of conference

  • SEG Technical Program Expanded Abstracts 2007

published proceedings

  • SEG Technical Program Expanded Abstracts 2007

author list (cited authors)

  • Sun, Y. F.

complete list of authors

  • Sun, YF

publication date

  • January 1, 2007 11:11 AM