petrel 2000 petrel introduction g&g - مهندسی...
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PETREL 2000
PETREL INTRODUCTION G&G
SCHLUMBERGER
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Objective
• Data Interpretation and Analysis using Petrel
– 2D Seismic data visualization and interpretation
– Interpretation of structure (e.g. faults)
– Stratigraphic correlation
– Velocity modeling
• Materials (Courtesy: 2011 IBA team University of
Alabama)
– 13,385 km2 study area
– 15 2-D time migrated seismic lines (1981 vintage)
– 7 wells (2 TD in basement)
– Well seismic ties >32 km
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• 3D visualization
• Well correlation
• Classification and Estimation (Artificial Neural Net)
• Creation of synthetic seismograms
• Seismic attributes
• Geobody Interpretation
• 2D & 3D seismic interpretation and modeling
• Seismic volume rendering and extraction
• 3D mapping
• 3D grid modeling for geology and reservoir simulation
• Velocity Modeling (Domain Conversion)
• Well log upscaling
• Facies Modeling
• Petrophysical Modeling
• Data Analysis
• Uncertainty Analysis
• Optimization
• Workflow editor
• Fracture Modeling
• Volume Calculation
• 3D well design
• Streamline simulation
• ECLIPSE Simulation
• Simulation post-processing
• Remote Simulation Run
submission
• Plotting
Petrel Key Benefitswww.oilexploration.ir
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Explorer Paneswww.oilexploration.ir
Explorer Paneswww.oilexploration.ir
Project Coordinate System
File New Project
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Select Project Coordinate System
Helpful website to get an overview on Geodetic Datum
http://www.colorado.edu/geography/gcraft/notes/datum/datum_f.html
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Import Seismic Datawww.oilexploration.ir
Import Seismic Data
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Import Base Map
1. Bitmaps (bmp, jpg, tiff) can be imported and visualized in Map Window2. Save a map from Google Earth3. Insert new folder in the input pane Rename as map Right click
Import on Selection4. Right click on the image Settings Settings input Lat-Long data
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Import Well Logs www.oilexploration.ir
Import Well Logs (3 steps) 1. Well head An ASCII file (EXCEL file saved as .txt-tab dilimited) must be created with following required attributesa. Well Nameb. X coordinatec. Y coordinated. Kelly Bushing (Elevation datum)e. Bottom Depthf. TD (True vertical Depth)
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Depth Reference/Depth Datum
Objective Q/A
Search “Schlumberger Oilfield Glossary” in Googlewebsite : http://www.glossary.oilfield.slb.com/default.cfm
Search for following terminologiesa. Depth Reference or Depth Datum b. Kelly Bushingc. Rig Floord. Measured Depthe. True Vertical Depth
Figure Courtesy
http://www.cdc.gov/niosh/face/stateface/ok/03ok034.html
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Import Well path/deviation www.oilexploration.ir
Import Well Logs www.oilexploration.ir
Seismic Data Visualization
Right click on seismic line
Create Interpretation Window
The seismic interpretation window gives you a classic 2D view of the seismic data. Inline, crossline, composite lines and any type of random lines, can be displayed in the interpretation window. All interpretation tools are available in this window and the view can be zoomed, stretched and squeezed in either direction.
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Seismic Data Visualization: Composite Lines
<--Start new composite line to draw more than one composite lines
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1. Check following seismic lines
1981 D-81_Amplitude, 1981 B-81_Amplitude, 1981 A-81_Amplitude,
1981 27-81_Amplitude, 1981 16-81_Amplitude
Seismic Data Visualization: Composite Lines
2
345
2. Select orthogonal
view
3. Select composite
section
4. Select the lines to
be added into the
composite section
(become bold white),
double click when
you are done with
adding lines
5. Composite folder
will be created
automatically in the
input pane
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Seismic Data Visualization: Convert to 2D seismic line www.oilexploration.ir
Seismic Data Interpretation www.oilexploration.ir
Interpret Grid Horizons [H]
Seeded 3D autotracking [Shift +A]
Guided autotracking [G]
Manual interpretation [U]
Seeded 2D autotracking [A]
Insert New folder
Right clickInsert seismic horizonNew horizon will be added “Seisimic Horizon 1” and be activated (bold) Click on choose from the following options
Horizon picking
Right click on 1981 27-81_Amplitudes Create interpretation window
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Two ways to interpret faults:
• Classical interpretation (drawing fault segments) in the seismic interpretation
- flexibility of traditional interpretation- clarity of fault planes triangulated in 3D
• Fault modeling directly on the seismic in 3D process- ready for gridding as soon as the interpretation is complete. - interpreter is forced to solve problems regarding fault hierarchy and connections - no need for reinterpretation before fault modeling
Fault picking www.oilexploration.ir
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