SCAN 2D seismic data

Background

Since 2018 TNO and EBN jointly carry out the multiyear research program Seismische Campagne Aardwarmte Nederland, in short SCAN. The results of the SCAN project allow a better estimation of where in the Dutch subsurface there is potential for geothermal heat production. The main projects of the SCAN program concern seismic data acquisition in the field with modern techniques and the re-processing of existing seismic data of the Dutch subsurface. In the acquisition and reprocessing of data  an emphasis is placed on areas with a low data density.  By combining and further study of the results obtained from these projects, the knowledge on our subsurface is further increased. More information on the SCAN program can be obtained via the website scanaardwarmte.nl, whereas via the following NLOG-page all research data and final results of the different studies within SCAN are published.

Following the acquisition of new seismic data in the field, the resulting field data is processed into a seismic section. With regards to reprocessing of existing seismic data, old field data is checked and processed into a new seismic section using modern techniques. For lines for which the process is completed, both the field data and the final processed seismic section are published here.

Seismic sections can be downloaded from this page while the field data can be requested by contacting the Servicedesk. TNO charges a service fee for the handling of the request and final delivery of the data is via a file transfer service.

This shapefile or KML gives an up-to-date overview of the available seismic data from the SCAN project. An overview of the ongoing and planned activities within the project can be found on scanaardwarmte.nl.
 

Newly Acquired Seismic Data

For the SCAN-lines described below, data is available. The locations of the lines can be seen on this map.

Line 1: Test Line Utrecht – Almere (L2EBN2019ASCAN001)

As part of the acquisition of new seismic data of the subsurface for SCAN, a test line of approx. 29 km between Utrecht and Almere has been recorded in 2019. With the Test Line is determined how to efficiently manage and perform the new acquisition. The test line partially overlaps with the NAM-DEEP line, this one of the few existing seismic lines with the specific purpose to acquire data of the deep subsurface. The aim of the SCAN test line was to gather data of at least a comparable quality. This goal has been achieved: the test line is of very good quality and the deep layers are visible.

In total, 1355 shots were registered with 5817 channels per shot and an offset ranging from 10 meters to 10’s of kilometers. Data was recorded by vertical single geophones spaced 5 meters apart with a 2 millisecond sample interval and a record length of 20 seconds (10001 samples per trace).

With the applied long offset 2D seismics it is expected that it is possible to look deeper in the subsurface compared to industry standard techniques.

The field data (idented, in SEG-Y file format) of this test line can be requested. 
The final result, the seismic sections with velocities and processing report, can be downloaded via this link: L2EBN2019ASCAN001

Acquisition Parameters Line 1
Seismic Design Split spread
Acquisition type All geophones laid out before shooting commenced
Maximum offset Up to 29 km 
Receiver station interval 5 m 
Receiver type Innoseis Tremornet 5 Hz geophone
Source type  Pulse
Source interval 20 m
Source depth 18 m
Sample rate 2 ms
Record length 20 seconds

Line 2: Boxtel – Bronckhorst (L2EBN2019ASCAN002)

The second line is recorded between Boxtel and Bronckhorst over a distance of approximately 82 km during September-October 2019.

Only the field data is currently available (idented prestack, in SEG-Y format) for this line.

Acquisition Parameters Line 2
Seismic Design Split spread
Acquisition type Roll-Along
Maximum offset 6997,5 m
Receiver station interval 5 m 
Receiver type (land) Geospace GCL 5 Hz Geophone 
Receiver type (shallow water crossings) Geospace Marshphones 5 Hz
Source type Pulse
Source interval 60 m
Source depth 20 m
Sample rate 2 ms
Record length 10 seconds

Line 3:  West Betuwe – Arnhem (L2EBN2019ASCAN003)

The third line was recorded from West Betuwe to Arnhem over a distance of approximately 48 km during October-November 2019.
The acquisition parameters for line 3 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 4: West Betuwe – Lelystad (L2EBN2019ASCAN004)

The fourth line was recorded from West Betuwe to Lelystad over a distance of approximately 83 km during November-December 2019.
The acquisition parameters for line 4 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 5: Cuijk – Putten (L2EBN2019ASCAN005)

The fifth line was recorded from Cuijk to Putten via Wageningen over a distance of approximately 82 km during December 2019 to Januari 2020
The acquisition parameters for line 5 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 6: Heumen – Lingewaard (L2EBN2020BURKM006)

The third line was recorded from Heumen to Lingewaard over a distance of approximately 20 km during Januari 2020.
The acquisition parameters for line 6 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 7: Overbetuwe – Berg en Dal (L2EBN2020BURKM007)

The third line was recorded from  Overbetuwe to Berg en Dal over a distance of approximately 18 km during Januari 2020.
The acquisition parameters for line 7 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 8: Neder-Betuwe – Renkum (L2EBN2020BURKM008)

The third line was recorded from Neder-Betuwe to Renkum over a distance of approximately 19 km during Februari 2020.
The acquisition parameters for line 8 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 9: Arnhem – Wijchen (L2EBN2020BURKM009)

The third line was recorded from Arnhem to Wijchen over a distance of approximately 22 km during Februari 2020.
The acquisition parameters for line 9 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

Line 10: Wageningen – Lingewaard (L2EBN2020BURKM010)

The third line was recorded from Wageningen to Lingewaard over a distance of approximately 23 km during Februari 2020.
The acquisition parameters for line 10 are identical to line 2.

Only the field data are currently available (idented prestack, in SEG-Y format) for this line.

 

Reprocessed Seismic Data

NAM-DEEP

The reprocessed NAM-DEEP lines are 2 long regional lines from the surveys L2NAM1982F and L2NAM1984N that run from NE to SE of the Netherlands. The total length of the lines is 268 km and the location of the line can be seen on this map (pdf).

The original data has been reprocessed and the resulting seismic sections can be downloaded via the links below.

Seismic section:
NAM_DEEP_Line_Stack_Final-VTI_PreSTM_AGC_ROT.zip
NAM_DEEP_Line_Stack_Final-VTI_PreSTM_ROT.zip
NAM_DEEP_Line_Stack_Final-VTI_PreSTM_ROT_far_offsets.zip
NAM_DEEP_Line_Stack_Final-VTI_PreSTM_ROT_mid_offsets.zip
NAM_DEEP_Line_Stack_Final-VTI_PreSTM_ROT_near_offsets.zip
Velocities:
NAM_DEEP_Line_Velocities_Final_Migration_Stacking.zip
NAM_DEEP_Line_Velocities_Final_Migration.zip
Processing Report:
GTO-19-C011_NAM_DEEP_2D_Lines_Final_Report.pdf

Apart from the seismic section available above, the field data has been checked and reconstructed during reprocessing (idented prestack shot gathers) and can be requested.

SCAN Area C

24 Lines located in SCAN Area C have been reprocessed. The lines are part of five Mobil surveys from the 1980’s and cover a total length of 315 kilometers, as can be seen on the map (pdf). The reprocessed seismic sections can be downloaded using the links below:

Line Original survey Seismic data
8401 L2MOB1984A 8401_SCAN.zip
8406 L2MOB1984A 8406_SCAN.zip
8408 L2MOB1984A 8408_SCAN.zip
8410 L2MOB1984A 8410_SCAN.zip
8411 L2MOB1984A 8411_SCAN.zip
8412 L2MOB1984A 8412_SCAN.zip
8413 L2MOB1984A 8413_SCAN.zip
8414 L2MOB1984A 8414_SCAN.zip
8504 L2MOB1985A 8504_SCAN.zip
8507 L2MOB1985A 8507_SCAN.zip
8508 L2MOB1985A 8508_SCAN.zip
8513 L2MOB1985A 8513_SCAN.zip
8514 L2MOB1985A 8514_SCAN.zip
8515 L2MOB1985A 8515_SCAN.zip
8517 L2MOB1985A 8517_SCAN.zip
8557 L2MOB1985C 8557_SCAN.zip
8559 L2MOB1985C 8559_SCAN.zip
8705 L2MOB1987A 8705_SCAN.zip
8706 L2MOB1987A 8706_SCAN.zip
8711 L2MOB1987A 8711_SCAN.zip
8712 L2MOB1987A 8712_SCAN.zip
8713 L2MOB1987A 8713_SCAN.zip
8850 L2MOB1988A 8850_SCAN.zip
8853 L2MOB1988A 8853_SCAN.zip

Apart from the seismic section available above, the field data has been checked and reconstructed during reprocessing (idented prestack shot gathers) and can be requested.