Modélisation de la structure interne des réservoirs de type fluviale. Application sur un site de stockage de gaz en aquifère

Pascal Lavest. ( 1996 )
INPL

Abstract

The modeling of fluvial reservoirs is a study area for which many technics have been developped, all related to a specifie context, defined by be nature and the density of data available. Our framework is the study of a natural gas underground storage unit, where the amount of data available enables us to build a deterministic model. For that purpose, we have developped new modeling tools, that can be grouped in three different parts: - The geometrical modeling and volumic characterization of stratigraphical sequences, through a new object, that we called the gstack. - The creation of a regular-grid type object, on which we implemented new functionnalities. These allow us, in the frame of a complex geological modeling project where differents types of mesh are used at differents steps, to integrate the results of each of these steps on one single object. - the development of a new interpolation algorithme, based on the D.S.I method, which allows to constrain the estimation of a physical property on a regular grid, by a non-constant anisotropy field. These tools have been tested and validated by the contruction of a geological model of a natural gas storage reservoir. This work also let us show how it was possible to integrate different types of information (seismic data, well data, knowledge of the geologist, etc ... ) in one model.

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BibTeX Reference

@PHDTHESIS{,
    author = { Lavest, Pascal },
     title = { Modélisation de la structure interne des réservoirs de type fluviale. Application sur un site de stockage de gaz en aquifère },
      year = { 1996 },
    school = { INPL },
  abstract = { The modeling of fluvial reservoirs is a study area for which many technics have been developped,
all related to a specifie context, defined by be nature and the density of data available.
Our framework is the study of a natural gas underground storage unit, where the amount of
data available enables us to build a deterministic model.
For that purpose, we have developped new modeling tools, that can be grouped in three different
parts:
- The geometrical modeling and volumic characterization of stratigraphical sequences,
through a new object, that we called the gstack.
- The creation of a regular-grid type object, on which we implemented new functionnalities.
These allow us, in the frame of a complex geological modeling project where differents
types of mesh are used at differents steps, to integrate the results of each of these steps on
one single object.
- the development of a new interpolation algorithme, based on the D.S.I method, which
allows to constrain the estimation of a physical property on a regular grid, by a non-constant
anisotropy field.
These tools have been tested and validated by the contruction of a geological model of a
natural gas storage reservoir. This work also let us show how it was possible to integrate different
types of information (seismic data, well data, knowledge of the geologist, etc ... ) in one
model. }
}