The Log page in the Property Manager includes options for defining data and keyword schemes for percentage logs. To view and edit percentage log properties, click on the percentage log in the view window or Object Manager to select the log. Then, click on the Log tab in the Property Manager.
Edit percentage log properties on the
Log tab in the Property Manager.
The Hole ID Filter is used to select the borehole to associate with this log. Only those Hole IDs that are currently associated with data tables in this project are listed. To change the Hole ID Filter, click on the existing Hole ID and select the desired Hole ID from the list. The log automatically updates to show the new borehole.
When the Logs object is selected in a cross section view, the Hole ID Filter is not available. To set a specific log to a particular Hole ID, click on that individual log and set the Hole ID Filter to the appropriate log.
Use the Table to define the data table for the percentage log. The table type can be an interval table or a depth table. If the table is a depth table, the values from each column are plotted as a line at the depth listed in the table. If the table type is an interval type table, the values are plotted as bars with the depth determined by calculating the mid-point position between the To and From columns in the corresponding table. To change the table, click on the existing table name and select the desired table from the list.
Select the columns in the selected Table that are displayed by the percentage log with the Edit variable columns field. To change the columns, click the Edit button. The Select Columns dialog opens. Select the desired data columns in the Select Columns dialog. When the Table is changed to another table, the Select Columns dialog automatically updates to display the column names in the newly selected table.
The Hole inclination column (or Hole dip column) is used in combination with the Hole azimuth column to calculate the true vertical depth for the hole. Either Hole inclination column or Hole dip column is displayed. To control whether inclination or dip is used, click the File | Options command. In the Options dialog, check or uncheck the Use Hole dip instead of inclination option.
Inclination is the angle the borehole is oriented in degrees and varies from 0 to 180. 0 indicates vertical pointing down, 90 indicates horizontal, and 180 indicates vertical pointing up. Negative and positive inclination values are treated the same for depth calculations. Negative inclination values are treated differently for well path calculations in the cross section and map views. A negative inclination changes the direction (azimuth) to the opposite of the similar positive inclination. For example, the azimuth value of 90 and inclination of 45 describes the same orientation as the azimuth value of 270 and inclination of -45 degrees. Both combinations describe an eastward direction at 45 degrees down from the horizontal plane.
Dip is an alternate method of calculating the angle the borehole is oriented. Dip is oriented in degrees and varies from -90 to 90. -90 indicates vertical pointing down, 0 indicates horizontal, and +90 indicates vertical pointing up.
Azimuth is the compass orientation of the well's deviation, in degrees and varies from 0 (true vertical north) to 360. Azimuth values are measured relative to true north (not grid north in the local coordinate system).
To set the Hole inclination column or Hole dip column, click on the existing option and select the desired option from the list. Available options are [Unspecified], [From collars table:collars name], [From survey table: survey name], or data columns in the selected Lithology table. When one column is set to unspecified or survey table, the other column automatically changes to the same option. When recorded in a collars table, the inclination/dip and azimuth apply to the entire well length. When recorded in a survey table, the inclination/dip and azimuth apply from the depth to the next recorded depth. When set to one of the columns in the existing table, each log is updated independently from each other log using the information in the specific depth or interval tables. If the Hole inclination column for the log is set to [Unspecified], an inclination value of 0 is used for the calculations. No difference will be visible for the log when changing the Depth method to True vertical depth.
Check the Use keyword scheme
check box to apply the properties from the Keyword
scheme to the percentage log. The Keyword
Scheme is the scheme
that determines the font and fill properties for each column in the percentage
log. When Use
keyword scheme is not checked, the line properties
are determined by the options on the Line
page, not by the keyword scheme. The selected keyword
scheme should match the column names that appear in the columns selected
in the Select Columns dialog.
To change the scheme, click on the existing scheme name and select the
desired scheme from the list. Click the 
next to
the scheme name to open the Scheme
Editor, where the scheme can be created or edited.
See Also