Abstract
Geological structures are generally deformed, making the present-day Euclidean distance inappropriate for applying geostatistics. Considering this, chronostratigraphic coordinate system maps geological models into a regular chronostratigraphic space, where deformations (especially those due to both faults and folds) have been removed (Mallet, 2004). Three curvilinear coordinates are used for this mapping, among which a time coordinate, inspired from H. E. Wheeler's work (1958), and two paleogeographic coordinates corresponding to the location of each particle at deposition time. To-date, chronostratigraphic coordinate system has been implemented by Moyen and Mallet (2004), Jayr et al. (2008), as a global optimization method which computes the three coordinates from chronostratigraphic interpretations. In this work, we propose instead to use sequential geomechanical restoration to compute paleogeographic coordinates. Geomechanical restoration is a way to infer the original position of a horizon taking rock physics into account. Each layer is restored into depositional state, which provides the paleogeographic coordinates of its hanging wall. Doing so, it is possible to capitalize on restoration efforts to build a chronostratigraphic coordinate system, accounting for rock rheology and for the deformation path inferred from the sedimentary record.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011 |
| Subtitle of host publication | Unconventional Resources and the Role of Technology |
| Publisher | European Association of Geoscientists and Engineers, EAGE |
| Pages | 1034-1038 |
| Number of pages | 5 |
| Volume | 2 |
| ISBN (Print) | 9781617829666 |
| Publication status | Published - 2011 |
| Event | European Association of Geoscientists & Engineers Conference & Exhibition 2011: Unconventional Resources and the Role of Technology - Reed Messe Wien, Vienna, Austria Duration: 23 May 2011 → 26 May 2011 Conference number: 73rd http://www.eage.org/events/index.php?evp=4172&ActiveMenu=3&Opendivs=s3 |
Conference
| Conference | European Association of Geoscientists & Engineers Conference & Exhibition 2011 |
|---|---|
| Abbreviated title | SPE EUROPEC 2011 |
| Country | Austria |
| City | Vienna |
| Period | 23/05/11 → 26/05/11 |
| Internet address |
Cite this
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3D chronostratigraphic coordinate system based on geomechanical restoration. / Laurent, G.; Caumon, Guillaume; Jessell, M.; Royer, Julia F.
Proceedings of the 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011: Unconventional Resources and the Role of Technology. Vol. 2 European Association of Geoscientists and Engineers, EAGE, 2011. p. 1034-1038.Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review
TY - GEN
T1 - 3D chronostratigraphic coordinate system based on geomechanical restoration
AU - Laurent, G.
AU - Caumon, Guillaume
AU - Jessell, M.
AU - Royer, Julia F
PY - 2011
Y1 - 2011
N2 - Geological structures are generally deformed, making the present-day Euclidean distance inappropriate for applying geostatistics. Considering this, chronostratigraphic coordinate system maps geological models into a regular chronostratigraphic space, where deformations (especially those due to both faults and folds) have been removed (Mallet, 2004). Three curvilinear coordinates are used for this mapping, among which a time coordinate, inspired from H. E. Wheeler's work (1958), and two paleogeographic coordinates corresponding to the location of each particle at deposition time. To-date, chronostratigraphic coordinate system has been implemented by Moyen and Mallet (2004), Jayr et al. (2008), as a global optimization method which computes the three coordinates from chronostratigraphic interpretations. In this work, we propose instead to use sequential geomechanical restoration to compute paleogeographic coordinates. Geomechanical restoration is a way to infer the original position of a horizon taking rock physics into account. Each layer is restored into depositional state, which provides the paleogeographic coordinates of its hanging wall. Doing so, it is possible to capitalize on restoration efforts to build a chronostratigraphic coordinate system, accounting for rock rheology and for the deformation path inferred from the sedimentary record.
AB - Geological structures are generally deformed, making the present-day Euclidean distance inappropriate for applying geostatistics. Considering this, chronostratigraphic coordinate system maps geological models into a regular chronostratigraphic space, where deformations (especially those due to both faults and folds) have been removed (Mallet, 2004). Three curvilinear coordinates are used for this mapping, among which a time coordinate, inspired from H. E. Wheeler's work (1958), and two paleogeographic coordinates corresponding to the location of each particle at deposition time. To-date, chronostratigraphic coordinate system has been implemented by Moyen and Mallet (2004), Jayr et al. (2008), as a global optimization method which computes the three coordinates from chronostratigraphic interpretations. In this work, we propose instead to use sequential geomechanical restoration to compute paleogeographic coordinates. Geomechanical restoration is a way to infer the original position of a horizon taking rock physics into account. Each layer is restored into depositional state, which provides the paleogeographic coordinates of its hanging wall. Doing so, it is possible to capitalize on restoration efforts to build a chronostratigraphic coordinate system, accounting for rock rheology and for the deformation path inferred from the sedimentary record.
UR - http://www.scopus.com/inward/record.url?scp=80052484139&partnerID=8YFLogxK
M3 - Conference Paper
SN - 9781617829666
VL - 2
SP - 1034
EP - 1038
BT - Proceedings of the 73rd European Association of Geoscientists and Engineers Conference and Exhibition 2011
PB - European Association of Geoscientists and Engineers, EAGE
ER -