SEDPAK 4.1 is substantially more sophisticated than 4.0 but is simpler to use. Many of the improvements involved making the user interface more intuitive and making the simulation more powerful. The major enhancements are:

SEDPAK LAUNCH (Section 2.15)

• € A FACIES button added to the LAUNCH menu (see Chapter 5) activates the Facies Editor. This is used both to create and edit facies (.facies) files and edit existing ones. These files can be used by any SEDPAK data (.db) file being executed. The Facies button on the SEDPAK EDIT Menu is now unnecessary and has been removed.
  
• Note that a color map problem exists with the Facies Editor on Silicon Graphics machines. It is necessary to launch the Facies Editor before initiating any other Sedpak program. The Facies Editor will not appear on Silicon Graphics machines if other programs are launched first.

SEDPAK EXEC (Chapter 4)

• SEDPAK EXEC now allows multiple simultaneous executions of the simulation.
• € A new streamlined SEDPAK EXEC menu has been designed (Figure 4.5.2). Many of its menu functions are now activated from pull-down and/or tear-off menus rather than push buttons on the main menu panel.
• € Surface Snapshot is activated from the File pull-down menu and creates a basin cross section surface file of the simulation output which can be used to:
  1. overlay on gif files of the basin stratigraphy and seismic cross sections (Section 2.17).
  2. create uncomformities (Section 3.04).
  3. generate sediment layers that can be modified to match the deposition of sediment from Out of the Plane of section (Section 3.21).

• € A pull-down or tear-off View menu has been developed from which the following options can be turned On or Off for the SEDPAK output:

Color Fill.
Shore markers.
Time Marker bubbles.
Sea Level curves.
Well Cross Section.
Well Cross Section Position.
WellPosition.
Create XWD.

• € Other new menu items on the View pull-down menu include:
  1. Sea Level Highlight (Section 4.05) used to select a portion of the sea level curve and highlight the time equivalent portion of the simulation on all displays.
  2. Select Well Position on the SEDPAK SIMULATION output.
  3. Acess Facies Definition File dialog to read .facies files for displaying in the Basin-Facies mode (Chapter 5).
  4. Select Maturation Model (TTI or Kinetic) for choosing the maturation display in the SEDPAK SIMULATION output (Section 4.04).
• € A capability to view two SEDPAK simulation Display Modes in either the Top or Bottom windows of the SEDPAK SIMULATION output (Section 4.04).
  
• € Zooming is enhanced by enabling:
  1. Synchronous Zoom - Similar Display Modes (basin cross section or well plots) to be zoomed synchronously or separately (Section 4.01, Figure 4.1.4).
  2. Inset View - The zoomed area to be viewed in the lower window while the area being zoomed is outlined by a box in the full simulation display of the upper window (Section 4.01).
     
• € Coordinates for the zoom window may now be entered via the keyboard.
  
• € Sea Level curve modifications include the marking of sequence boundaries by heavy black dots when using the Basin-Sequence mode, and the color of the curve being coordinated to match the time-equivalent sequences of the basin cross section.

Improvements to the SEDPAK simulation algorithms include

• € New maturation models (Sections 3.21, 3.22, 3.23, and 4.05) including Kinetic maturation.
  
• € Improved handling of data aliasing (Section 1.11). The program selects the parameter value prescribed for that time or column boundary or, if there is no value for that boundary, the program will select linearly interpolated values where they cross that boundary.
  
• € New format for surface dumps and ability to create files interactively.
  
• € New layer thickness file.

SEDPAK EDIT

• € GUI for Out-Of-Plane Deposition (Section 3.20).
  
• € GUI for Maturation Parameters (Section 3.22) including editable ranges for plots of iso-temperatures.
  
• € Multiple curves can be displayed together on plotters (Section 2.10).
  
• € Cyclic curves can now be created with the calculator (Section 2.12).
  
• € A Create Range button has been placed on all data sheets to speed up data input.
  
• € An Apply button has been placed on all dialogs and changes on a plotter can now be Abandoned without closing it.
  
• € Balloon Help is initiated when the mouse arrow rests over a menu button or item.

SEDPAK FACIES

• € A facies (.facies ) file library capability has been developed as described previously (Chapter 5).
  

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