Chapter 05 – 3D Seismic Lines
3D Geological Modeling
3. 3D Seismic Lines
The 3D seismic lines are read into Petrel in a specific General
Lines/Points (ASCII) (*.*) format as shown in Fig. 5.1.
Fig. 5.1: The 3D Seismic Lines open in a
Notepad window
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
How to import a seismic lines file
To insert the seismic lines to the project:
1. Click the Insert menu command and choose New Interpretation Folder.
2. A new interpretation folder will be added, Right-click on this item, then
select Import (on Selection)….
3. The Import File form appears as shown in Fig. 5.2. Select General
Lines/Points(ASCII) (*.*) format from the Files of type combo box, and
specify location and name of the seismic data files to be inserted into the
project.
Fig. 5.2: The Import File Form
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
4. Make sure that the X, Y, and Z-columns are correctly numbered, in this
case, 1, 2, and 3 as shown in Fig. 5.3. There exist two options for reading
seismic lines, the Points and Lines options. For faster display, the Lines
option is selected. However, for more accurate display of seismic data, the
Points option is selected. Once done, the Ok button is clicked.
X
Y
Z
Fig. 5.3: The Import Lines/Points Form
5. The Input data dialog form appears. Make sure that the correct domain is
selected; in this case, the Elevation Time option should be selected from the
Template combo box, as shown in Fig. 5.4. Press the Ok for All button, and
press OK.
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
Fig. 5.4: The Input Data Dialog
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
To display the seismic 3D lines, expand the interpretation folder by clicking
the plus sign to its left, then select the surfaces to be displayed as shown in
Fig. 5.5.
Fig. 5.5: Seismic data of Sea Bed, Base Cretaceous, Top
Tarbert, Top Ness and Top Etive by choosing Points option
displayed in a 3D window
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
On other hands, if you select the Lines Option, the Input data dialog form
appears. Select the Elevation Time option from the Domain combo box and
the Other option for the Line type as shown in Fig. 5.6. Press the Ok for All
button and press OK.:
Fig. 5.6: The Import Lines/Points Form
Fig. 5.7: The Input Data Dialog
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Chapter 05 – 3D Seismic Lines
3D Geological Modeling
Fig.5.8: Seismic data of Sea Bed, Base Cretaceous, Top Tarbert,
Top Ness and Top Etive, by choosing Lines option displayed in a
3D window
Next, the Horizons are arranged from top to bottom as they appear in the
geological column as follows (Fig. 5.8):
1.
2.
3.
4.
5.
Sea Bed
Base Cretaceous
Top Tarbert
Top Ness
Top Ettive
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