الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to...
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Transcript of الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to...
![Page 1: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/1.jpg)
السيزمي االنعكاس
reflector
sourceReceivers
![Page 2: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/2.jpg)
Measurement
• Seismic measurement:tool to obtain an image of the subsurface
Processing Image
S RS RSource Receiver
• Detect changes in the subsurface• Detect objects
![Page 3: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/3.jpg)
Source Receiver Raw data
seismic Sectiongeology
Reflection Seismics
![Page 4: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/4.jpg)
Data acquisititie
Data processing
Interpretation
Seismic Imaging
![Page 5: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/5.jpg)
Fundamentals
IntroductionSeismic waves: Propagation Velocity and AmplitudesSeismogramMeasurement systems
Sources, receivers, Acquisition strategies
Data processing
“Pre-processing”Filter und Deconvolution
Velocity anlysis and StackingMigrationInterpretation
Overview
![Page 6: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/6.jpg)
Source
Snapshots of wavefield propagationSnapshots of wavefield propagation
![Page 7: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/7.jpg)
Snapshots of wavefield Snapshots of wavefield propagationpropagation
Source
![Page 8: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/8.jpg)
Snapshots of wavefield Snapshots of wavefield propagationpropagation
Source
![Page 9: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/9.jpg)
Snapshots of wavefield Snapshots of wavefield propagationpropagation
Source
![Page 10: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/10.jpg)
Aim Depth of penetration
Oil/Gas Exploration of layers 100 m - 5 km
Engineering geophysics
Groundwater
Pollution
Archaeological
10-500 m
Earth crust seismic
Composition of Earth Crust/Geodynamics
-60 km
Measurements in water
Echo sounder,
High resolution seismic
~ 0 m
<100 m
Georadar (GPR) Shallow investigation of earth 0.5-10 m
Field of application
![Page 11: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/11.jpg)
Seismic vibrator
geophonesdynamite
Acquisition on land
![Page 12: الانعكاس السيزمي reflector source Receivers Measurement Seismic measurement: tool to obtain an image of the subsurface Processing Image SR SR Source.](https://reader038.fdocuments.in/reader038/viewer/2022102800/56649d215503460f949f6fba/html5/thumbnails/12.jpg)
Source ReceiversReceivers
Time
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hydrophones
source
Acquisition on zee
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Acquisitie on The seabottom
Geophone and hydrophones
Source
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Seismic datacubeSeismic datacube
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Depth sliceDepth slice
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Geological interpretationGeological interpretation
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time [ms]
0
100
200
300
700
400
500
600
0
100
200
300
400
500
600
depth [m]
W E
200 m
gravel and sand
gravel and sand
fine sand
lacustrine clay
lacustrine clay
rock
Interpretation of west-east-line
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(from Keary and Brooks, 1991)
Time slice through a 3D seismic data set
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(from Kearey and Brooks, 1991)
Time slice through a 3D seismic data set