Skip to Main content Skip to Navigation
Theses

Modélisation des hétérogénéités lithologiques à l'échelle du réservoir pétrolier en milieu marin et fluviatile :

Abstract : When modelling a petroleum reservoir, well data are very useful to model properties at a sub-seismic scale. Petrophysical properties like porosity or permeability are linked to the rock-type. Two methods based on well data have been developed to model facies. The first one is used to model marine carbonates deposits. The geometry of sedimentary layers is modelled through a special parameterisation of the reservoir similar to Wheeler space. The time parameter is defined along the well paths thanks to correlations. The layer thickness is then extrapolated between wells. A given relationship between facies and bathymetry of sedimentation makes it possible to compute bathymetry along the well paths. Bathymetry is then extrapolated from wells and a reference map using the concept of accommodation. The model created this way is stratigraphically consistent. Facies simulation can then be constrained by the computed bathymetry. The second method describes a novel approach to fluvial reservoirs modelling. The core of the method lies in the association of a fairway with the channels to be simulated. Fairways are positioned so that all data are taken in account; they can be stochastic if unknown or explicitly entered if identified on seismic data. A potential field is defined within the fairway. Specifying a transfer function to map this potential field to thickness results in generating a channel inside the fairway. A residual component is stochastically simulated and added to the potential field creating realistic channel geometries. Conditioning to well data is obtained by applying the inverse transfer function at the data location to derive thickness values that will constrain the simulation of residuals
Document type :
Theses
Complete list of metadata

Cited literature [81 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01752530
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 1:50:25 PM
Last modification on : Monday, March 15, 2021 - 10:56:03 AM

File

2005_LEFLON_B.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01752530, version 1

Citation

Bruno Leflon. Modélisation des hétérogénéités lithologiques à l'échelle du réservoir pétrolier en milieu marin et fluviatile :. Autre. Institut National Polytechnique de Lorraine, 2005. Français. ⟨NNT : 2005INPL078N⟩. ⟨tel-01752530⟩

Share

Metrics

Record views

88

Files downloads

147