Calibration of the petro-elastic model (PEM) for 4D seismic studies in multi-mineral rocks

Hamed Amini, Erick Raciel Alvarez

Research output: Contribution to conferencePoster

5 Citations (Scopus)
308 Downloads (Pure)

Abstract

We propose a method to calibrate the petro-elastic model in a multi-well fashion, applicable to multimineral,multi-fluid rocks. We use a model that combines Gassmann’s equations (1951) with the modified MacBeth (2004) rock stress sensitivity model (Alvarez & MacBeth, 2013) through a linear search optimisation algorithm, which allows modelling of the variations of the dry-frame elastic moduli with changes in porosity and mineralogy. The importance of the rock framework characterisation on PEM predictions is highlighted, and it is concluded that an over-simplification of the dry-frame characterisation in 4D seismic-related studies can lead to errors of the same magnitude as the 4D seismic signal and therefore these effects cannot be ignored.
Original languageEnglish
DOIs
Publication statusPublished - 17 Feb 2014
EventEAGE/FESM Joint Regional Conference Petrophysics Meets Geoscience - Kuala Lumpur, Malaysia
Duration: 17 Feb 201418 Feb 2014

Conference

ConferenceEAGE/FESM Joint Regional Conference Petrophysics Meets Geoscience
CountryMalaysia
City Kuala Lumpur
Period17/02/1418/02/14
Other"From Nano Pores to Mega Structures"

Keywords

  • 4D seismic
  • petro-elastic model
  • Gassmann
  • multi-mineral

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    Amini, H., & Alvarez, E. R. (2014). Calibration of the petro-elastic model (PEM) for 4D seismic studies in multi-mineral rocks. Poster session presented at EAGE/FESM Joint Regional Conference Petrophysics Meets Geoscience, Kuala Lumpur, Malaysia. https://doi.org/10.3997/2214-4609.20132136