Cross Section Scale

Cross Section View Tools: Cross Section Scale

The Cross Section Scale dialog box is used to control the scale, spacing, and depth range in your cross section display. From this dialog box you can also turn on vertical panels for horizontal wells, and control the width of log curves and templates. There are two tabs in the dialog box—Scale and Display Limits.

To open the Cross Section Scale dialog box on the Scale tab, click on the Buttons toolbar, or from theView menu select Scale. To open the Cross Section Scale dialog box on the Display Limits tab, click on the Buttons toolbar, or from theView menu select Limits.

General Options

Apply to All Cross Sections: Apply the current properties to all cross sections. When this is turned off, the default settings are restored every time you open a new cross section. When this is turned on, the defined settings are applied every time you open a new cross section.

Scale Tab

Use the Scale tab to change the display from fixed spacing to distance spacing, to turn on vertical panels for horizontal wells, to adjust the vertical exaggeration of the display, and to specify the width of log curves and templates.

Fixed Spacing

Place a check mark next to Fixed Spacing to draw the wells at user defined intervals, and to turn on vertical panels for horizontal wells. Note that when you are using fixed spacing, deviated wells will be displayed vertically, with no visible deviation.

Dist: Enter a value in meters to define the fixed distance between wells.

TST Display: Display wells using the true stratigraphic thickness. This is typically used for deviated wells.

TST Background: When TST Display is turned on, applying a TST background will highlight the portions of the log being stretched or squeezed (relative to the well path). Green represents stretched portions and red represents squeezed.

Horizontal Wells - Vertical Panels

Place a check mark next to Horizontal Wells - Vertical Panels to split log and template displays for horizontal wells into a series of vertical panels. The panels are created using either the inflection plane of the horizontal well, or the inflection plane of a selected surface. Each panel will be separated by the user-defined distance. This option is only available in Distance Spacing mode.

Elevation Inflection Plane: Create a new panel every time the deviation survey passes through the horizontal plane.

Zone TST Inflection Plane: Create a new panel every time the selected surface passes through the horizontal plane .

TST Surface: When Zone TST Inflection Plane is selected, click to open the Choose One Surface dialog box, and select the surface to use.

Minimum Panel Length: Enter a minimum panel length in meters.

Arrows: Turn on direction arrows next to each vertical panel to indicate the direction of the data. Depending on how they relate to horizontal, a panel may be drawn in the upward or downward direction.

Width:Specify a width for the arrows. Choose from Thin, Medium, or Thick.

Distance Spacing

Place a check mark next to Distance Spacing to adjust the distance spacing settings. When you are displaying the cross section using distance spacing, the spacing between wells is controlled by the actual distance between well. Wells are displayed in subsea true vertical depth (SSTVD) and projected onto the section using the wells' directional survey. Note that you must use distance spacing to make inter-well picks.

Project Deviations: Turn this on to project wells onto the cross section using their directional surveys.

Normal Offsets:

Horizontal Offsets:

KB (Single Point): Projects the well from its KB location down to the bottom of the well.

TD (Single Point): Projects the well from its TD location up to the top of the well.

Pick (Single Point): Projects the well from the location of the selected pick in the well up to the top and down to the bottom of the well. When this option is used, click to open the Choose One Surface dialog box, and select a pick.

Normal (Multipoint): projects the well from every individual point in the well for improved accuracy.

Vertical Exaggeration

Enter a value, or select a preset value to expand the vertical scale relative to the horizontal scale. Note that when you print your cross section, this vertical exaggeration is preserved.

Curve/Template Controls

For these fields the values are in scale meters relative to measured cross section distances.

Curve/Template Width: The relative width of the log curve or curve template display.

Zone Fill Pattern Scale: The relative size of the lithologic fill patterns for zones.

Well Fill Pattern: The relative size of the lithologic fill pattern for well templates.

Display Limits Tab

Use the Display Limits tab to set the top and bottom display limits for your cross section. These can be based on specific depths, or surface depths with optional offsets.

TVDSS: Enter a true vertical depth subsea value, or click to use the depth limits defined in the project area of interest (AOI) for the Top or Bottom Display Limits.

Surface: When this option is used, click to open the Choose One Surface dialog box, and select a pick surface for the Top or Bottom Display Limits .

Offset: When you are setting the display limits using a Surface, optionally enter an offset value in meters to extend the boundary above or below the selected surface.

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