Skip to main content

Sedimentary Logs Context Menu

Commands available when right-clicking Measured Sections / Sedimentary Logs in the Data Tree. Sedimentary logs (also called stratigraphic sections or measured sections) are 1D vertical representations of stratigraphic sequences, recording lithology, facies, structures, and other geological properties along a measured vertical profile.

Navigation & Display​

Menu name: Navigate To Tooltip Move the 3D view to frame the sedimentary log.

What it does See Navigate To in Shared Commands for complete documentation. Centres and zooms the 3D view on the selected sedimentary log, positioning the camera to provide a clear view of the log's location and extent.

When to use it

  • Locating logs in 3D space
  • Reviewing log spatial context
  • Navigating between multiple measured sections

Notes Logs are displayed as vertical profiles at their measured location. View centres on the log's position with appropriate zoom to show full stratigraphic thickness.

Make Active​

Menu name: Make Active Tooltip Set this sedimentary log as the active log.

What it does Designates the selected sedimentary log as the "active" log. The active log is used as a reference by various operations and may receive special display treatment. Only one log can be active at a time.

When to use it

  • Before operations requiring a reference log
  • When digitising or editing log data
  • For workflows that reference the active log

Notes Active status is indicated in the project tree and may affect display highlighting. Some editing and analysis operations automatically apply to or reference the active log.

Spreadsheet View​

Menu name: Spreadsheet View Tooltip View log data in spreadsheet format.

What it does Opens a spreadsheet view displaying the sedimentary log data in tabular format. Rows represent depth/stratigraphic intervals, columns represent attributes (lithology, facies, grain size, structures, measurements, etc.). Allows viewing, sorting, filtering, and editing of log data in a structured table.

When to use it

  • Reviewing detailed log data
  • Editing log attributes systematically
  • Sorting or filtering stratigraphic intervals
  • Quality control of log data entry
  • Exporting data to spreadsheet applications

Notes Spreadsheet is typically editable - changes update the log in the 3D model. Useful for systematic data entry or correction. Columns correspond to log attributes; rows to depth intervals or stratigraphic units. Can sort by any column (depth, facies, grain size, etc.).

Import​

From File...​

Menu name: From File... Tooltip Import sedimentary log from file.

What it does Opens file dialogue to import sedimentary log data from external file formats. Supported formats may include CSV, text, proprietary log formats, or standardised formats (e.g., LAS for well logs). Imported logs are added to the project with spatial positioning and stratigraphic attributes.

When to use it

  • Importing field-measured sections
  • Loading legacy log data
  • Bringing in subsurface well log data
  • Integrating logs from external databases

Notes Import format varies - may require specification of column mappings (which columns represent depth, lithology, etc.). Coordinate position should be specified or included in import file. Log orientation (dip/azimuth) can typically be set during or after import.

Geophysical Log Tracks...​

Menu name: Geophysical Log Tracks... Tooltip Import geophysical well log track data.

What it does Opens specialised import dialogue for geophysical well log data (e.g., gamma ray, resistivity, density, neutron, sonic logs). Imports continuous measurement tracks from subsurface logging tools, typically from LAS (Log ASCII Standard) files or similar wireline log formats.

When to use it

  • Importing wireline log data from oil/gas wells
  • Loading borehole geophysical surveys
  • Integrating subsurface characterisation data
  • Bringing in continuous downhole measurements

Notes

Well Log Format

Geophysical logs are continuous measurements vs. depth, distinct from lithological descriptions. Import typically handles multiple tracks (curves) simultaneously. LAS format is industry standard for well logs.

Imported tracks appear as continuous curves alongside or within the log display. Depth registration with stratigraphic log is critical - ensure depth datums match. Multiple tracks can be imported and displayed simultaneously.

Export​

Export​

Menu name: Export Tooltip Export sedimentary log to file.

What it does See Export in Shared Commands for complete documentation. Opens export dialogue to save log data to external file formats. Export options typically include CSV, text, graphical formats (PDF, SVG), or standardised log formats.

When to use it

  • Creating deliverables from field work
  • Archiving log data
  • Sharing logs with collaborators
  • Preparing logs for publication
  • Exporting for analysis in external software

Notes Export format determines content: CSV/text exports tabular data (depth, attributes), graphical exports create visual log representations. May include options for depth range, attribute selection, and formatting. Coordinate/positioning information may be included in exports.

Analysis​

Statistics​

Menu name: Statistics Tooltip Calculate stratigraphic statistics from log data.

What it does Opens dialogue displaying statistical summaries of log attributes. Calculates metrics such as total stratigraphic thickness, facies proportions, mean grain size, bed thickness statistics (mean, median, standard deviation), and frequency distributions of categorical attributes (lithology, structures).

When to use it

  • Summarising stratigraphic sequences
  • Calculating facies proportions for modelling
  • Analysing bed thickness distributions
  • Quantifying stratigraphic architecture
  • Comparing logs statistically

Notes Statistics calculated depend on log content and attribute types:

  • Continuous attributes (grain size, bed thickness): mean, median, standard deviation, range
  • Categorical attributes (facies, lithology): counts, proportions, frequencies
  • Thickness statistics: total, net-to-gross ratios, bed thickness distributions

Results typically displayed in dialogue and may be exportable. Useful for quantitative stratigraphic analysis and reservoir characterisation.

Editing​

Set Dip and Azimuth​

Menu name: Set Dip and Azimuth Tooltip Specify log orientation in 3D space.

What it does Opens dialogue to specify dip angle and azimuth for the sedimentary log. This defines the orientation of the stratigraphic section in 3D space - important for tilted or overturned strata. The log's vertical axis is rotated to match the specified structural orientation.

When to use it

  • Orienting logs in structurally tilted strata
  • Correcting log orientation after import
  • Aligning logs with structural measurements
  • Restoring logs to depositional orientation

Notes Dip angle (0-90°) defines inclination from horizontal. Azimuth (0-360°) defines strike direction. For horizontal strata, dip = 0. The log's measured thickness may need to be adjusted (true vs. apparent thickness) depending on measurement direction relative to bedding. Important for correctly displaying logs in 3D structural context.

Replace Facies​

Menu name: Replace Facies Tooltip Batch replace facies classifications in log.

What it does Opens dialogue to find and replace facies classifications throughout the log. Allows selecting a source facies type and replacement facies type, then updates all intervals with the source facies to the replacement facies. This enables systematic reclassification of log data.

When to use it

  • Updating facies schemes after interpretation revision
  • Correcting systematic classification errors
  • Simplifying facies classifications (merging types)
  • Standardising facies names across multiple logs

Notes

Batch Operation

Affects all occurrences of the specified facies. Cannot be undone - ensure replacement is correct. Consider duplicating log before major reclassifications.

Replacement updates facies codes/names and associated display colours. Useful when facies classification scheme has evolved or errors are systematic.

Repair​

Menu name: Repair Tooltip Repair gaps or errors in log data.

What it does Analyses the sedimentary log for data integrity issues and attempts automatic repairs. Checks for and fixes problems such as:

  • Gaps in stratigraphic coverage (missing depth intervals)
  • Overlapping intervals
  • Invalid attribute values
  • Depth ordering errors
  • Inconsistent depth units

When to use it

  • Fixing logs with data entry errors
  • Repairing imported logs with formatting issues
  • Resolving depth registration problems
  • Quality control before analysis

Notes Repair operations are typically automatic but may require user confirmation. Common repairs:

  • Gap filling: Interpolate or insert placeholder intervals
  • Overlap resolution: Trim or merge overlapping intervals
  • Depth sorting: Reorder intervals by depth
  • Value validation: Flag or correct out-of-range values

Review repairs carefully - automatic corrections may not match geological intentions. Backup or duplicate logs before repair operations.

Object Operations​

Delete​

Menu name: Delete Tooltip Permanently remove sedimentary log from project.

What it does See Delete in Shared Commands for complete documentation. Permanently removes the sedimentary log from the project database, including all stratigraphic data, measurements, and associated attributes.

When to use it

  • Removing incorrect or redundant logs
  • Cleaning up test or preliminary logs
  • Deleting low-quality data

Notes

Cannot be undone

Operation is permanent. Ensure you have backups or exports of important field data before deleting.