Picture_863 - BLUEENDOARROW 3D seismic data interpretation:

  • Processing techniques
  • Manual 2D/3D interpretation (local/regional scale)
  • 3D auto-tracking
  • Stratigraphic reflectors and faults
  • Intra-salt reflectors (stringers)
  • Structural and sedimentological features under- and overburden
  • Seismic and well data correlation
  • Post-processing
  • Visualization techniques (2D, 3D, movies)
Picture_155 - Stringerinterpretation

2D manual interpretation of major overburden features, Top Salt (well data), intra-salt stringer, Base salt and underburden features for seeding the 3D auto-tracking. The connectivity of the stringer defines the density of the manually intepreted point cloud.
If the stringer is highly connected, we skip this and move on to 3D auot hunting.
Picture_158 - Stringersnapshot1

Picture_161 - stringer3d

Seeded 3D auto-tracking of highly connected parts of intra-salt stringers. Stacking of stringer fragments lead to the "double-z problem" (horizon tracker does not allow for double-z values), and additional horizons are implemented.
Picture_159 - Stringersnapshot3D

The 3D view reveals the very complex stringer geometry and superimposed structures -> manual interpretation for seeding the auto-tracker is required.
Picture_157 - Seismicstringer3D

Amplitude cut-offs used to highlight the top stringer reflector. This visualization also enables a faster stringer auto-tracking. However, the stringer is often not connected (i.e., seimsically not imaged) and manual tracking of each single fragement is required.
In case of many smaller, highly offset stringer fragments, careful interpretation is required. Missing fragements can lead to strong differences in the structural interpretation of stringer parts.
Picture_156 - Seismicstringerandwells3D

Picture_160 - seimsicandwell

Integration of well data in 2D and 3D to identify and implement (not imaged) Top Salt, not imaged stringer occurences (e.g., thin and steep fold limps) and Potassium-salts ("squeezing salts").

Picture_129 - Frankproject2
Large-scale, 3D, interpolated interpretation of an intra-salt stringer and Top Salt mesh Dutch onshore. We use different interpolation algorythms to highlight and test possible structural models for the intra-salt.
  Frank Strozyk
















Seismic gallery

 

Fault roughnessHVG

StringerHVG

Frankproject2

Frankproject1

Frankproject3

Frankproject4

SaltminevsSeismikFra...

SeismicvssaltmineFra...

Picture by Frank Str...

Stringerbasementfaul...

Stringerinterpretati...

Seismicstringerandwe...

Seismicstringer3D

Stringersnapshot1

Stringersnapshot3D

seimsicandwell

Picture by Frank Str...

InterpretedStringer3...

Geotag 2011-Ausstell...

Geotag 2011-Ausstell...

tectonics fp logo

Alex_Seisoverview_pr...
 

Publications

 

Theses

Heijn van Gent
Stress and strain from reflection seismic data. PhD-thesis. Geologie - Endogene Dynamik, RWTH Aachen. 198 pages (2010)
 

Nonreviewed

Peter Kukla, Janos Urai, John K. Warren, Lars Reuning, Stephan Becker, Johannes Schoenherr, Markus Mohr, Heijn van Gent, and several additional authors .
An Integrated, Multi-scale Approach to Salt Dynamics and Internal Dynamics of Salt Structures. AAPG Search and Discovery Article #40703, February 25, 2011, 87 pages. (2011)
 

Papers

Stefan Back, Heijn van Gent, Lars Reuning, Juergen Groetsch, Jan Niederau, Peter A. Kukla
3D seismic geomorphology and sedimentology of the Chalk Group, southern Danish North Sea. Journal of the Geological Society 168(2), 393-406. doi: 10.1144/0016-76492010-047 (2011)
 
Heijn van Gent, Janos Urai, Martin de Keijzer
The internal geometry of salt structures - a first look using 3D seismic data from the Zechstein of the Netherlands. Journal of Structural Geology - Special Issue: Flow of rocks: Field analysis and modeling - In celebration of Paul F. Williams' contribution to mentoring 33, 292-311. (2011)
 
Markus Mohr, John K. Warren, Peter A. Kukla, Janos Urai, Anton Irmen
Subsurface seismic record of salt glaciers in an extensional intracontinental setting. Geology, 35(11),963-966 (2007)
 
Markus Mohr, Peter A. Kukla, Janos Urai, G. Bresser
Multiphase salt tectonic evolution in NW Germany: seismic interpretation and retrodefromation. International Journal of Earth Sciences 94(5-6),917-941 (2005)
 

Abstracts

Heijn van Gent, Frank Strozyk, Janos Urai, Martin de Keijzer
Seismic interpretation of the internal geometry of the Zechstein evaporites - Large scale structures and internal stability. EGU General Assembly. Geophysical Research Abstracts, 13, pp. EGU2011-2265. Room 22 / Wed, 06 Apr, 13:30-17:00, / Room 22 / Wed, 06 Apr, 13:30-17:00. (2011)
 
Janos Urai, Peter Kukla, Heijn van Gent, Steffen Abe, Shiyuan Li, Guillaume Desbois, Johannes Schoenherr, Zsolt Schléder, Lars Reuning, and several additional authors .
Internal Dynamics of salt structures. Alpine Salt 2011: A workshop on Alpine Evaporites, Salzburg, Austria. 31 March. Invited Talk (2011)
 
Heijn van Gent, Janos Urai, Martin de Keijzer, Frank Strozyk
The internal geometry of the Zechstein - Seismic interpretation of coeval extension and compression. GeoDarmstadt 2010, Darmstadt, Germany, 10-13 October 2010, Hoppe, Röhling, Schütz (eds) Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften, v (2010)
 
Janos Urai, Peter Kukla, Heijn van Gent, Steffen Abe, Guillaume Desbois, Johannes Schönherr, Zsolt Schléder, Lars Reuning, Stephan Becker
Internal Dynamics of Salt Structures. GeoDarmstadt 2010, Darmstadt, Germany, 10-13 October 2010, Hoppe, Röhling, Schütz (eds) Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften, vol. 68, E. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, 5 (2010)
 
Heijn van Gent, Janos Urai, Martin de Keijzer
The 3D geometry of the Zechstein Z3 carbonate/anhydrite member: implications for the study of salt structures and hydro-carbon production. AGU 90, Fall Meet. (2009)
 
Heijn van Gent, Janos Urai, Martin de Keijzer
The 3D geometry of the Zechstein Z3 carbonate/anhydrite member: implications for the study of salt structures and hydro-carbon production agu san francisco 2009. Eos Trans. AGU, San Fransisco, CA, USA, 90 (52) Fall Meet. Suppl., T33C-1931. (2009)
 
Heijn van Gent, Janos Urai, Peter A. Kukla
The 3D Geometry of the Zechstein Z3 Carbonate/Anhydrite Member: Implications for Salt Dynamics and Hydrocarbon Production. AAPG International Conference & Exhibition, Cape Town, South Africa, October 26-29, 2008. (2008)