This excerpt illustrates how fracture data is entered into the datasheet and how it can be displayed on the log. The program permits you to plot the fractures with constant or variable colors, thicknesses and lengths.
Introduction
Example
How to enter Fracture Data
Use: The LogPlot Fracture datasheet is used to list depths, dip direction and dip angle, and optional color, aperture (thickness) and radius (size) of for downhole fractures. These fractures can be displayed in a Fracture column in the log design, projected onto a user-specified plane.
Corresponding log design component: Fracture data will be plotted on the log in the Fracture Column of the same name.
Corresponding RockWorks data table: Fracture (fully compatible)
Right-Click Options: When you right-click in any of the Fracture datasheet's cells, you have the following options:
Cut, Copy, Paste Insert/Append/Delete Rows Manipulate Columns Edit Data Page Name Delete Data Page Move
This excerpt illustrates how fracture data is entered into the datasheet and how it can be displayed on the log. The program permits you to plot the fractures with constant or variable colors, thicknesses and lengths.
Automatic:
If there is already a Fracture column in the current log design to which you will be linking the data, you can use the Data | Update Data File from Log Design menu option to insert a new Fracture datasheet in the current data file. The program will know how to name the tab based on the log design information.
Manual:
Select the Data | New Data Page | Fracture menu option to manually insert a Fracture datasheet.
New Name: Type in the name to assign to the datasheet. LogPlot will use this name to match data to the item in the log design.
Click OK.
The program will add to the data file a Fracture datasheet labeled with the selected name and with five blank columns: Depth, Dip Direction, Dip Angle, Color, Aperture, and Radius.
Name: The name displayed on the data tab is used to match the data to a particular Fracture column in the log design. This name is declared when you first create the data page (above) and can be edited by right-clicking in the body of the data tab, and choosing Edit Data Page Name.
Depth: In this column list the depths at which the measurements were taken.
Dip Direction: In this column enter the dip direction in 0 to 360 azimuth degrees.
Dip Angle: In this column, enter the dip angles, where 0 = horizontal and 90 = vertical.
Color: (Optional) Double-click in this cell to select a color for the fracture. If you choose to define specific colors for individual samples, be sure to set the Fracture column to a "Column-Based" color scheme.
Aperture: (Optional) This column is used to enter values representing the thickness of the fractures. In RockWorks this value represents actual units for modeling purposes; in LogPlot it can be used to vary the thickness of the lines displayed for the fractures on the log.
Radius: (Optional) This column is used to record the radius of the fracture. In RockWorks, this value represents actual distance units for modeling purposes; in Logplot it can be used to vary the length of the lines displayed for the fracture son the log.
Back to LogPlot Datasheet Summary
