PETREL 2000 PETREL INTRODUCTION G&G SCHLUMBERGER.
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Transcript of PETREL 2000 PETREL INTRODUCTION G&G SCHLUMBERGER.
PETREL 2000
PETREL INTRODUCTION G&G
SCHLUMBERGER
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
• 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 Benefits
Explorer Panes
Explorer Panes
Project Coordinate System
File New Project
Select Project Coordinate System
Helpful website to get an overview on Geodetic Datum
http://www.colorado.edu/geography/gcraft/notes/datum/datum_f.html
Import Seismic Data
Import Seismic Data
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
Import Well Logs
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)
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
Import Well path/deviation
Import Well Logs
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.
Seismic Data Visualization: Composite Lines
<--Start new composite line to draw more than one composite lines
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
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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
Seismic Data Visualization: Convert to 2D seismic line
Seismic Data Interpretation
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 horizon New 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
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