The sandbox analog modeling database

the geoanalog web service

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geoanalog

is a IFP Energie nouvelles powerful and handy search engine to find and consult existing structural analog models, with simplify access and monitoring for its customers.

GeoAnalog : The new Plug-and-Play webservice


With its user-friendly interface, this innovative and intuitive web-based application will allow authorized users to easily access, visualize and interact with a centralized analog model database via the Internet. Thanks to HTML5 technologies with specific viewers, users will be able to work in both desktop and mobile environments, using a powerful and user-friendly search engine.

The GeoAnalog web-based application is hinged around rapid data access solutions :

  • the discovery portal, with a metadata catalog of analog modeling experiments, including the public consultation of a number of existing analog models
  • the option for authorized users to browse a full catalog of paid-for analog models

The full catalog provides access to :


A range of more than 200 analog experiments

in several geological contexts


A 3D viewer

allowing users to observe the internal structures through a 3D block available for each deformation step (4D)


The setup

for each experiment


A description

of the experiments and the results


A collection of 2D films making

It possible to observe structural deformations over time

Value for users

Access to the analog model database :

With its user-friendly interface, this innovative and intuitive web-based application will allow authorized users to easily access, visualize and interact with a centralized analog model database via the Internet. Thanks to HTML5 technologies with specific viewers, users will be able to work in both desktop and mobile environments, using a powerful and user-friendly search engine.

Understanding and analyzing :

Validation of a structural interpretation can be performed via the exploration and analysis of analog experiments with advanced and interactive visualization capabilities (2D/3D/4D). With an educational and flexible approach, an image can be uploaded in order to search for a model that matches it more closely among those that already exist in the database.

Analog Models

is Our sandbox discovery portal consists of numerous examples with a range of different structural configurations.

No showcase experiment for this category


Acquisition of new analog models : IFPEN provides advanced services related to the acquisition of new models.

Our Expertise

IFPEN develops and applies a broad range of basin analysis and modeling methods using multidisciplinary teams of specialists. Using an integrated approach, IFPEN has developed analog modeling to improve our understanding of geological processes and structures. Analog models are acquired using a medical scanner. This imaging technique enables nondestructive observation of the internal structure of each model throughout the deformation period. 4D numerical models are produced to observe the kinematic evolution of structural deformation.

 

IFPEN Specificities
IFPEN analog modeling process
Salt tectonics in the SIVAS Basin, Turkey
Workflow used for analogue modeling
IFPEN Specificities

IFPEN develops and applies a broad range of basin analysis and modeling methods using multidisciplinary teams of specialists. Using an integrated approach, IFPEN has developed analog modeling to improve our understanding of geological processes and structures. Analog models are acquired using a medical scanner. This imaging technique enables nondestructive observation of the internal structure of each model throughout the deformation period. 4D numerical models are produced to observe the kinematic evolution of structural deformation.

IFPEN analog modeling process

Several motorized deformation boxes are used at IFPEN, leading to different types of deformation :

  • compression
  • extension
  • strike slip movement
  • tilting

These deformations can be combined and thin-skinned deformation can be performed. Brittle deformation is simulated using granular material (sand, corundum and pyrex), while ductile deformation is created using a silicone putty.

Salt tectonics in the SIVAS Basin, Turkey

An example of application, published in 2013 by our partners Ringenbach et al.: Outstanding seismic analogues from outcrops and sandbox models.

Workflow used for analogue modeling

Model build up

Analogue models are built in a motorized deformation box allowing one or simultaneous deformations (compression, strike-slip, extension, gravity) in different configuration (flat or complex basement). Sediments overlay the wood basement and consisted of sand, pyrex, corundum or micro-beads, which are dry granular materials simulating brittle sedimentary rocks and silicone (SGM 36) and sand/silicone mixes, which are viscous Newtonian materials simulating ductile rocks. The thicknesses of the different layers, strengths and velocities of deformation are scaled appropriately following Hubbert (1937) and Ramberg (1967). Erosion/deposition was modeled by removing or adding granular material (alternation of sand and pyrex).

Model imaging

All experiments were recorded with an X-ray tomographer (Colletta et al., 1991). Acquisition of a cross section is obtained by the complete rotation of X-ray source and coupled detectors around the sand box experiment. To reconstruct a 3D block, we acquire juxtaposed cross sections through the whole model. The acquisitions are made at regular time steps allowing us to record the 3D evolution of the model through time (4D).

Model interpretation

All experiments can be loaded in a workstation used for seismic interpretation and can be interpreted as well.

4 avenue de Bois-Préau
92852 Rueil-Malmaison Cedex France

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Properties

Image processing

ColorMap

Range Min

Range Max

Scale

Slices

Inline

Xline

Depth

Axis

  • Record reference Required
    Scanner name Required
    Name
    Owner
    Date
    Model Sheet Nb
    X Ray Tomograph
    Confidentiality X Required
    Construction in progress
    Category Required
    Showcase
    SubTitle
    Geologic Context
    Analog Country
    Geological Settings
    Experimental Settings
    Comments
    Bibliography
    References
    Country Region
    Latitude Start
    Latitude End
    Longitude Start
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    Cross Sections
    Sections Location mm
    Time Sec Number
    Section Thickness mm
    Section Thickness mm
    Distance between Sections mm
    Time between views min
    Number of 3D Blocks Required
    Number of 3D Sections
    3D Section Thickness mm
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    Distance between 3D Sections mm Required
    Detector Width mm
    First 3D Section mm
    Last 3D Section mm
    3D Length mm
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    Field of View Required
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    Machine
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    Number of Layers
    Number of Layers
    Extension Velocity cm/h
    Extension Velocity cm/h
    Total Ext. cm
    T Ext. %
    Total Thickness cm
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    Shortening Velocity cm/h
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    Total Short. cm
    T Short. %
    Total Length cm
    Perp. Short. Velocity cm/h
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    Total Width cm
    Basal Strike-slip
    Velocity
    cm/h
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    Sens
    Total Strike-slip cm
    T Strike-slip. %
    Duration h/min/s
    Verticale Velocity
    Total Verti. cm
    T Verti. %
    Experimental Phasis
    Pictures
    Scaling
    Erosion Cycle
    Sedimentation Cycle
    Settings
    Model Rheology
    Model Rheology
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    Thumbnail

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    Height : 50 pixels

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    Drop segy files here to upload Name of files like that : [recordref]_3D[Num4D].segy Max size by file : 100 Mo
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Infos

Layout

Views

Each view can be resied (clicking and moving borders) or moved (clicking and moving the title of the tab).

2D Handling

Move

Mouse Left Click on the seismic and move it.

Zoom

Use the wheel of the mouse.

Values

Values under the cursor are displayed on the bottom of each 2D view and are updated in real time according to the cursor position. The crosshair is synchronized between all 2D views.

3D Handling

Move

Mouse Right Click on the scene and move it.

Zoom

Use the wheel of the mouse.

Rotation

Mouse Left Click on the scene and move it.

Move a slice

Ctrl + Mouse Left Click on a slice and move it.

Tools

Parameters

Clicking on the parameter tool of the navbar opens the parameter panel allowing to change some parameters (colors of the seismic, slice positions).

Parameters - Range

"Range Min" is the min value of the colormap and "Range Max" is the max value of the colormap. If the min is increased, all values smaller than this min are transparent. Same thing with values bigger than the max. This option allows to reduce the noise of 2D/3D rendering.

2D Tools

Zoom In

Clicking on the "Zoom In" icon of the top-right of a 2D view zooms in the seismic of the view.

Zoom Out

Clicking on the "Zoom Out" icon of the top-right of a 2D view zooms out the seismic of the view.

Reset zoom

Clicking on the "Reset Zoom" icon of the top-right of a 2D view resets the zoom of the seismic of the view.

Rubber Band zoom

Clicking on the "Rubber Band Zoom" icon of the top-right of a 2D view allows to select a zone of the seismic of the view in order to zoom on it (keeps the height/width ratio of the seismic).

Magnifier

Clicking on the "Magnifier" icon of the navbar opens a frame which displays a zoom of the seismic under the cursor. The frame can be resized by the bottom-right corner, and moved.

3D Tools

Projection

Clicking on the "Projection" icon of the top-right of the 3D view changes the projection : orthographic or perspective (default value).

Curseur 3D

Clicking on the "Toggle Cross Hair Cursor" icon of the top-right of the 3D view displays or hides the 3D cursor of the view.

4D Tools

4D Player

The 4D player is on the navbar. The play button allows to play automatically from the first to the last 4D. It is possible to click anywhere on the slider to go directly on a particular 4D.

Experiments

Layout

Experiments of the page are grouped by scanner, and are ordered by the reference ("recordref"). To show all experiments of a scanner, click on the icon on the left of the line of the scanner.

Create an experiment

The "+" icon on the navbaropens a page which allows to create and add a new experiment to the data base.

Edit an experiment

To edit an experiment, click on its thumbnail.

Tools

Search tool

The search bar on the navbar allows to filter all experiments according to the reference ("recordref"). By default, all experiments are visible.

Tools

Change the current experiment

To change the current experiment, select one of the selected experiments from the navbar. The current experiment is highlighted in the dropdown list.

Change the current video

To change the current video, select one of the videos from the navbar. The list of videos is on the right of the experiment list. The current video is highlighted in the dropdown list.

Upload

Upload an image

It is possible to drag and drop an image into the "Images" zone, on the left of the page. The uploaded image is linked to the connected user, and visible each time the user is connected and goes to this page.

Remove an uploaded image

To remove an uploaded image, click on the white cross icon, on the top-right of the image.

Association

Link an image to the current experiment

To link an uploaded image to the current experiment, just click on the image. All uploaded images of the current experiment are displayed below the video, and are visible by all users of the groupe of the user who linked the images. Colors of the linked images change into the "Images" zone.

Remove an image linked to the current experiment

To remove an image linked to the current experiment, just click again on the image (into the "Images" zone) or click on the white cross icon on the top-right of the image (into the "Associated images" zone, below the video).

Comment an image linked to the current experiment

To comment an image linked to the current experiment, just click on the white pen icon on the top-right of the image.

Tools

Search tool

The search bar allows to filter experiments. A list of default values appears by clicking on the bar. The number of experiments on the page is on top of the page.

Category filter tool

The category filter bar allows to filter experiments by category. All is visible by default.

Favourite filter tool

This tool allows to display only the favourite experiments of the logged user.

Records

Public experiments

Public experiments are visible for everyone. Passing the cursor on a thumbnail displays some informations of the experiment. It is possible to select an experiment clicking on its line : pages "Details" and "Advanced" appears on the navbar, allowing to see in details the selected experiments.

Private experiments

Private experiments are visible for everyone, but are grayed because only a logged user can select them. Passing the cursor on a thumbnail displays some informations of the experiment

Schema

An experiment has a schema, which is on the right of the thumbnail. Passing the cursor on a schema displays a bigger schema.

Favourite experiment

To tag an experiment as favourite, you just have to clic on the yellow star icon which is on the left of the thumbnail of the experiment. Only logged users can see this icon.

Already consulted experiment

If the blue icon "v" is visible on the left of a thumbnail, it means the experiment has already been consulted in the "Advanced" page.

Tools

Search tool

The search bar allows to filter experiments. A list of default values appears by clicking on the bar. The number of experiments on the page is on top of the page.

Category filter tool

The category filter bar allows to filter experiments by category. All is visible by default.

Favourite filter tool

This tool allows to display only the favourite experiments of the logged user.

Experiments

Public experiments

Public experimentds are visible for everyone. Passing the cursor on a thumbnail displays some informations of the experiment. It is possible to select an experiment clicking on it : pages "Details" and "Advanced" appears on the navbar, allowing to see in details the selected experiments.

Private experiments

Private experiments are visible for everyone, but are grayed because only a logged user can select them. Passing the cursor on a thumbnail displays some informations of the experiment

Favourite experiment

To tag an experiment as favourite, you just have to clic on the yellow star icon which is on the top-right of the thumbnail of the experiment. Only logged users can see this icon.

Already consulted experiment

If the blue icon "v" is visible on the bottom-left of a thumbnail, it means the experiment has already been consulted in the "Advanced" page.

General information on the map view

Experiments are geolocated on the map. One experiment can have several analogue positions on the map. The geolocation is not exhaustive. If you can’t find the analogue sandbox you are looking for, you can try the thumbnail or the list view of the webservice. The experiments have also been sorted by categories: compression, extension, strike-slip, salt tectonics and inversion tectonics (see filter funnel in the menu bar).

How to use the map view

The blue points correspond to the geolocated experiments. If you hover over the point, a miniature image appears. If you zoom on it with the mouse wheel, it will refresh the gallery band to show you a set of experiments available for the zoomed area. You can click on an experiment to select it: The clicked blue point changes to a green point to confirm the selection. Then click on the eye, top left, for more details.

Tools

Polygon selection

You can use the polygon tool to select several experiments on the map. All the points included into the shape will be selected. Some points outside the shape can become green: these points correspond to the experiments analogue to others countries too.


How to use it :

1. select the tool

2. click the first point

3. draw your shape for selection by clicking points

4. close your shape by clicking again the first point (it will validate your selection)