M5 Intro to Property Modeling

Module 5 Property Modeling

Petrel Workflow Tools Introduction

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Surfaces and Data edit

Stratigraphic Modeling

3D Grid Construction: Structural Modeling

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Fault Modeling 3D Grid Construction Structural Framework

3D Grid Construction Structural Gridding

Pillar Gridding

Property Modeling

Well Log Upscale

Facies & Petrophysical Modeling

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Property Modeling Overview Property modeling is the process of filling the cells of the grid with discrete (facies) or continuous (petrophysics) properties.

Property modeling is split into three processes. Geometrical Modeling

Facies Modeling

Petrophysical Modeling

Geometrical Modeling  A process in which properties are generated using predefined system variables. For most properties, no interpolation of input data is required and properties are built based on the cell geometry. For some properties, input data are required, e.g., Seismic resampling and Geobody modeling.

Facies Modeling This is a means of distributing discrete data (e.g., facies) throughout the 3D model. The modeling inputs include the upscaled facies well logs and modeling parameters. Facies Modeling process dialog

Upscaled well logs

Petrophysical Modeling Petrophysical modeling is the interpolation or simulation of continuous data (e.g., porosity or permeability) throughout the model grid. Input includes well data, facies realization, variograms, a secondary variable, and/or trend data and various user settings are available. Trend

Upscaled well logs

Variogram Facies realizations

QC Output using Property Grid Filter Options Three types of property filters I-J-K filter

Filters a row of cells in the I-J direction and K direction (1). With this filter, there also is a Property Player (2), useful for QC of the grid.

Index filter

Skips a user-defined amount of cells in I-J-K direction. Useful for viewing a fence diagram (3).

Value filter

 Applies cut off between selected values of the property (4).

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