RFG 2018 / WS Vancouver, Canada June 2018, 16-17

Transcription

1 Storing and delivering numerical geological models on demand for Earth sciences application C. Loiselet*, C. Bellier, G. Courrioux, S. Lopez, J. Durand, O. Sedan and F. Robida RFG 2018 / WS Vancouver, Canada June 2018, 16-17

2 INTRODUCTION Lithospheric Scale 1- Model at different scales (lithospheric / crustal; basin; alluvium) 2- Several tools for geomodeling (Geomodeller, GDM Suite, Petrel, Isatis, Gocad, LeapFrog, ) as function of the needs Basin Scale A. Wehr 2017 (Ph.D thesis) Alluvium Scale A.L. Argentin 2015 (Master Thesis)

3 INTRODUCTION From Geological model 3- Geological geometry is input for simulation as limit boundaries To Geo-physical model Heat flow model

4 INTRODUCTION It is our geo-modelling workflow to provide rock unit informations and physical properties / features associated in all points of the space (and at different scale) In ideal world, users would like to access and to re-use this informations easily o To combine geometrical model with physical processes simulation, with CAO modeling, easily o To represent informations with any tool and more particularly with web client and in the three dimensions of the space

5 INTRODUCTION It is our geo-modelling workflow to provide rock unit information and physical properties / features associated in all points of the space In ideal world, users would like to access and to re-use this informations easily o To combine geometrical model with physical processes simulation, with CAO modeling, easily o To represent informations with any tool and more particularly with web client and in the three dimensions of the space 1/ How to store data from the static and/or dynamic models? 2/ How to improve coupling between static & dynamic models? 3/ How to combine these data sets to provide 3D information at the global/local scale?

6 OUR APPROACH : SCUDDD Model Native directory of geomodels Data + Algorithms Numerical methods; (surfaces type) Interpolation methods + Geological knowledge

7 OUR APPROACH : SCUDDD Model iscuddd_geol = Model queries / responses : 1) which formation? (at point (x,y,z)) 2) which contact? (arbitrary ray might intersect) (geology) P(xyz) Native directory of geomodels Data + Algorithms Numerical methods; (surfaces type) Interpolation methods + Geological knowledge

8 OUR Research APPROACH work : SCUDDD Which domain? Which contact? iscuddd_geol C++ Abstract class Virtual methods Implement Implement ScudddGDM ScudddGM ScudddAsciiGrid Export model to voxel grid from Gocad, Petrel, Isatis,

9 OUR Research APPROACH work : SCUDDD Which domain? Which contact? iscuddd_geol C++ Abstract class Virtual methods Implement Implement Implement ScudddCommercialTools (Gocad; petrel, leapfrog, etc ) ScudddGDM ScudddGM ScudddAsciiGrid Export model to voxel grid from Gocad, Petrel, Isatis, iscuddd_geol has to be implemented by geomodel tools

10 OUR APPROACH : SCUDDD Representation Model Interoperable exchange format SCUDDD components - Logs - Profiles - Maps - Points cloud - TIN - 2D/3D regular grid - 2D/3D irregular grid - 3D MegaVoxels -. Discretisation of space (xyz) (After CGAL.org) (geology) Native directory of geomodels

11 Model Representation Delivery OUR APPROACH : SCUDDD Web Services WS 3D Viewer :.VTK.VRML / X3D Interoperable exchange format SCUDDD components - Logs - Profiles - Maps - Points cloud - TIN - 2D/3D regular grid - 2D/3D irregular grid -. Native directory of geomodels

12 Model Representation Delivery OUR APPROACH : SCUDDD Web Services Interoperable exchange format WS SCUDDD components 3D Viewer :.VTK.VRML / X3D - Logs - Profiles - Maps - Points cloud - TIN - 2D/3D regular grid - 2D/3D irregular grid -. Approach implements an associated informatics architecture using interoperable concept allowing : (i) (ii) (iii) to reference geomodels; to store geomodels and to access and deliver informations related to Native directory of geomodels

13 OUR APPROACH : SCUDDD Store and Catalog models : Metadata form : imposed attributes to run model queries Stored in a BRGM BD model (from EPOS/wp7 approach) Import Model.zip (file of the model native directory) Search Native directory of geomodels Upload model

14 APPLICATION : DELIVERY ON THE WEB Vue 3D Call web services Processing Web services Representation / view WS

15 APPLICATION : DELIVERY ON THE WEB Vue 3D Call web services Processing Web services Representation / view WS

16 APPLICATION : DELIVERY ON THE WEB Vue 3D Call web services Processing Web services Representation / view WS

17 APPLICATION : DELIVERY ON THE WEB Vue 3D

18 APPLICATION : Coupling between geological model and simulation 3D geological model (RGF demo) P(xyz) N (Geology) N Physical properties (Vs, Vp) Voxel mesh filled by lithology properties from geological model to seismic waves propagation simulation (RGF-demo).

19 APPLICATION 3D mineral predictivity method (CBA) using 3D geological information The use of SCUDDD services allows to easily transfer mineral predictivity method (CBA) to 3D by : Creating a 3D of megavoxel including several contiguous monolithological voxels Creating a lithological spectrum by coding the presence/ absence of every formation for each megavoxel 3D mineral predictivity applied to Vosges Fossé Rhénan system CBA ranking technique is directly applicable to lithological spectrum by using standard megavoxels association 3D geological model: 3D grid representation (RGF demo) The application of the ranking to the 3D megavoxels grid allows to extend the favorability results in depth Tourlière et al., 2017

20 APPLICATION BDLISA at this moment 2D hydrogeological referential Hydrological entities along (x,y) WPS web services to request BD Lisa at (x,y) point wps/?service=wps&version=1.0.0&request=execute&identi n/xml&datainputs=x=x;y=y;crs=epsg:2 154 BD Lisa (x,y)

21 depth (m) APPLICATION BDLISA NOW = 3D hydrogeological referential Chartres Bourges Corresponding Relation and Rules between geological formation and BD Lisa features Distance (m) (geology) Geological model architecture BD Lisa architecture (hydrogeological features list) P(xyz) along profile trace P(xyz) Native directory of geomodels BD Lisa

22 depth (m) depth (m) M APPLICATION BDLISA NOW = 3D hydrogeological referential Chartres Bourges Distance (m) 500 Coupe BD LISA Chartres - Bourges Chartres 0 Hufrogeological entity 250 Bourges Aquifer unit Semi-permeable unit Impermeable unit Distance (m) M

23 CONCLUSION Conclusion & perspectives No data interoperability but iscuddd_geol is an interoperable programming interface if and only if geomodel tools implement it In perspectives, we have to develop the same way interoperable programming interface to query dynamical models and infrastructure models (i.e. iscuddd_simu ; iscuddd_infra) in order to deliver informations related to. Geological architecture Metadata Interoperable interfaces to query geological models Interoperable interfaces to query physical processes models Interoperable formats for representation Visualization

24 Thank you for your attention