Assessing deformation and fracturation with volumic balanced restoration

in: Poster presented at the 2003 SPE workshop on "Challenging Reservoirs: Providing the Petrophysical Solutions".

Abstract

This poster illustrates a methodology to characterize fracturation and assess induced permeability based on connectivity analysis. Fractures parameters (density, size, aperture...) are stochastically generated from well data. Secondary information (soft data) is an analogue parameter that integrates all available indirect information on fractures (seismic attributes, strain, stress, curvatures...). Multivariate statistics are used to find the best non-linear combination of indirect parameters that fits observed parameters on wells. Strain related information (tensor, principal strain direction and elongations) can be easily computed over all a defined volume using 3D balanced unfolding based on tetrahedral meshes. It may enhance greatly the quality of the analogue fracture parameter. A new methodology derived from mechanics of continuum media allows to estimate the restored geometry and a static strain associated with the folding / faulting process.

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BibTeX Reference

@INPROCEEDINGS{Muron:03,
    author = { Muron, Pierre and Souche, Laurent and Mace, Laetitia and Mallet, Jean-Laurent },
     title = { Assessing deformation and fracturation with volumic balanced restoration },
 booktitle = { Poster presented at the 2003 SPE workshop on "Challenging Reservoirs: Providing the Petrophysical Solutions". },
      year = { 2003 },
   address = { Dubaï, UAE },
  abstract = { This poster illustrates a methodology to characterize fracturation and assess induced permeability based 
on  connectivity  analysis.  Fractures  parameters  (density,  size,  aperture...)  are  stochastically  generated 
from  well  data.  Secondary  information  (soft  data)  is  an  analogue  parameter that  integrates  all  available 
indirect information on fractures (seismic attributes, strain, stress, curvatures...). Multivariate statistics are 
used to find the best non-linear combination of indirect parameters that fits observed parameters on wells.
Strain related information (tensor, principal strain direction and elongations) can be easily computed over 
all a defined volume using 3D balanced unfolding based on tetrahedral meshes. It may enhance greatly 
the quality of the analogue fracture parameter. A new methodology derived from mechanics of continuum 
media allows to estimate the restored geometry and a static strain associated with the folding / faulting 
process. }
}