Calculating dip and dip azimuth

As the first step toward creating a TVT/TST projection, you can use the Calculate Dip & Dip Azimuth form (Prepare > Wells) to calculate dip and azimuth properties for all markers for a wellbore from the horizon surfaces in a structural model, seismic interpretation, surface set or 3D grid, and output the resulting data as marker properties or logs. This output can then be used as input for the creation of a TVT/TST projection in the next form on the strip: Create TVT/TST projection.

You can also use the marker set itself to calculate the dip and azimuth properties for your well markers. You do this in cases where you do not have surfaces or a model yet. To calculate the dip and azimuth properties, JewelSuite will create a temporary surface through the markers, which will be removed immediately after creating the properties. As a user, you cannot control the settings with which this surface is generated.

You can choose whether to create the output as marker properties, or as logs. Calculating the dip and azimuths as marker properties will result in two new properties, Dip and Azimuth, being added to the Marker Set that you based your calculation on. The marker properties are added to each marker in the JewelExplorer. These marker properties can also be visualized and edited in the Marker Table, where additional columns are added to store the data. Calculating the dip and azimuths as logs will result in an Azimuth and Dip log, added to All Logs as well as to each individual wellbore item in Well Data > Wells.

When choosing to output the dip and azimuth information as marker properties you will select an existing marker set that will be overwritten with the new dip and azimuth data.

To calculate dip and azimuth

  1. Open the Calculate Dip & Dip Azimuth form (Prepare > Wells).
  2. Select whether you want to create the information as marker properties or logs. When choosing marker properties, an existing marker set needs to be selected from the adjacent drop-down list. This marker set will have the Dip and Azimuth properties added to each marker.
  3. Select the structural model, seismic interpretation, surface set, 3D grid or marker set that you want to derive the dip and dip azimuth data from. You can select the specific source model, interpretation, surface set, grid or marker set in the adjacent drop-down list.
  4. Click Apply to calculate the data and keep the Calculate Dip & Azimuth from open or click OK to calculate the data and proceed to the Create TVT/TST projection form.