4.05 View Controls

The View controls are activated from the View pull-down (or tear-off) menu on the EXEC panel menu bar. The items on this menu (Figure 4.5.1) and their actions are described below.


Figure 4.5.1 View menu from Exec panel.


Color FillWhen the button is red (the default), the simulation output is displayed with solid colors denoting the various lithologies, sequences or facies. When the button is grey, only the boundaries of the sediment layers deposited at each time step are displayed. Remember that no colors are displayed when Pseudo Wells is turned on and no Pseudo Wells have been defined from the EDIT menu (see Section 3.19).
Shore MarkersWhen the button is red (the default), the shoreline is denoted by a filled dot on the basin cross section displays and by a continuous line on the chronostratigraphic display in the simulation window. The position is considered by Vail and Posamentier (1987) to be the "depositional-shoreline break." When the square button is grey, these markers and lines are removed.
Time MarkersWhen the button is red (the default), the times which are entered from the Time Boundaries menu item of the EDIT panel (see Section 3.18), are displayed within bubbles on the basin and chronostratigraphic displays in the simulation window. When the button is grey, the time bubbles are turned off and are not displayed on the basin cross sections.
Sea LevelWhen the button is red (the default), the graph displaying the sea level curve and clastic sediment supply used in the simulation is plotted to the right of the simulation window. The size of the sea level excursions and the sediment supply are scaled to fit the area of the graph (Figure 4.4.1). The maximum value of the sediment supply/thousand years is plotted at the top of the graph and a scale for the sea level excursions is shown at the base of the graph. When the button is grey, the graph with the sea level curve and sediment supply are not displayed (Figure 4.1.2).
Well Cross SectionWhen the button is red, color fill is only seen at the position of the Pseudo Wells defined from the SEDPAK EDIT menu (see Section 3.19) within the simulation window (Figure 4.5.2). The default does not display the Pseudo Wells and the button is grey. If no pseudo wells are defined and the button is red, the color fill will not be seen and only the boundaries of the sediment layers deposited at each time step will be displayed (see Section 3.19).

Figure 4.5.2. Basin-Lithologic Ratio display with Well Cross Section turned on.

Well Cross Section PositionWhen the button is red, well locations are seen at the position of the Pseudo Wells defined from the SEDPAK EDIT menu (see Section 3.19) within the simulation window (Figure 4.5.2). The default does not display the Pseudo Wells and the button is grey.

Figure 4.5.3. Basin-Lithologic Ratio display with Well Cross Section Position turned on.


Well PositionWhen the button is red the location of the well position to be used for Time-Depth-Elevation, Burial History, Geohistory and Oil Peak-Kinetic Maturity displays is shown in the basin displays (Figure 4.4.6). The default for this option is "off."
Create XWD When the button is red, an xwd "dump" file is made of the SEDPAK SIMULATION window in a format used by standard tools of the X Window System for viewing and printing. The "dump" occurs each time the SEDPAK SIMULATION window is updated (see Plotting controls section 4.2). When the square button is grey, xwd files will not be created. Xwd off is the default setting. The xwd files can be used to make "movies" of the simulation output.
Sea Level Highlight...The Sea Level Highlight dialog is activated by selecting this option (Figure 4.5.4). Selecting a portion of the Sea Level curve restricts the color fill of the simulation output to that time interval. Selection is accomplished in two ways: either by using the mouse, or by entering the time interval with the keyboard. To use the mouse, first place the cursor on the Sea Level graph in the SEDPAK SIMULATION window and then click and drag it over a selected time interval of the curve. The dragged area of the curve is highlighted by a grey background, while the time equivalent portion of the basin cross section, or chronostratigraphic chart, is highlighted (Figure 4.5.5) with its designated color fill and the rest is unfilled. Alternatively the dialog box (Figure 4.5.4) can be used to enter the time interval to be highlighted by designating the appropriate times in the Enter First Position and Enter Second Position "type-in" areas. Sea Level Highlighting is used to better understand the timing of the generation of the various sedimentary geometries within the basin cross sections or the presence or absence of sediments geographically on the chronostratigraphic charts. In the case of the Burial History, Geohistory, and Time-Depth-Elevation displays, the Sea Level Highlight identifies the sediment record over the selected time range. To use the Sea Level Highlight best with well plots, the time range selected should be from the end of the simulation back to the onset of the deposition being studied. When selecting a time range within the simulation, the well plot will only show color fill for that selection, and the color fill is truncated for the remaining time intervals of the simulation.



Figure 4.5.4 Dialog box for entering time interval to be highlighted.






Figure 4.5.5 Portion of Basin-Lithologic Ratio cross section highlighted. Note grey portion of sea level curve equivalent to highlighted interval.



Select Well Position...Selecting Well Position from the View menu activates the Well Position dialog (Figure 4.5.6). This dialog determines the location of a well for use in Time-Depth-Elevation, Burial, Geohistory, or Oil Peak Kinetic Maturity display modes. The position is defined in terms of distance along the x-axis from the left of the simulation cross section and can be displayed on any of the Basin displays (Figure 4.5.7). A new position may be entered using the mouse and clicking on the basin display or by entering the value in the "type-in" area. When a new Well Position is specified, the simulation automatically applies the Load then Restart functionality.



Figure 4.5.6. Dialog for specifying a well location for a Time-Depth-Elevation, Burial History, Geohistory or Oil Peak-Kinetic Maturity plot.





Figure 4.5.7. Basin-Lithologic Ratio display with location of well indicated on the plot.




Select facies definition...When this option is selected, a dialog box for selecting a (.facies) file is activated (see Section 2.6 for file selection). The facies (.facies) file selected from this dialog is used to define the facies displayed in the Basin-Facies plot (see Chapter 5 on SEDPAK Facies). If the facies displayed in the simulation are inappropriate, another facies (.facies) file can be selected. New facies (.facies) files can be created from the SEDPAK Facies Editor activated from the SEDPAK LAUNCH menu (see Chapter 5).
Select maturation model...When this option is selected, a dialog box (Figure 4.5.8) is activated for selecting the maturation model (TTI or Kinetic) to be displayed in the Top and/or Bottom display windows. The maturation displays include: Basin-Maturity, Burial-Maturity, Geohistory-Maturity and Oil Peak-Kinetic Maturity. They are accessed from the Display Modes option menu on the EXEC menu (see Sections 3.20, 21, and 22 describing maturation menus and Section 4.4 on Display Modes). To activate the selected Maturation Model option, the Apply or OK button must be pressed.




Figure 4.5.8. Dialog for selecting the maturation model (TTI or Kinetic) to be displayed in the Basin Maturity cross sections and on the Time-Depth-Elevation, Geohistory, Burial History, and Oil Peak-Kinetic Maturity plots.



Chapter 5

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