Drillhole Database Reader

[banesullivan]

Overview
Drillhole functionality (and interpreting the results into 3D shapes) would fill a giant gap in open source geo-visualization. To address this, we will create a file reader that will handle the generation of VTK data objects from various types of drillhole databases. Basics would be:

• XYZ for the COLLAR (with some labeling attributes)
• SURVEY metadata for the azimuth and dip of the drill hole to plot its path
• incremental TABLES of information (e.g. depth from collar to describe geology, etc.)

Implementation
I'm currently thinking that we will have a data array selection window (checkboxes) for what drillholes to read then generate a multiblock dataset of the drillholes. As for whether each drillhole will be its own data object or groups of them will be distinguished will be determined as I dive deeper into the structures of these databases and what might be most useful.

Additional Context

• Here is an article on drilling databases with downloadable DDBs.
• Geoblock is an OS program that might have some available code.
• Geoscience Analyst might also be worth checking out.
• Professional databases have a lot of fields in them describing the various technical aspects of drilling, but the common fields for all of them are COLLAR, SURVEY, ASSAY, and LITHOLOGY.

[grantboxer]

I have been looking for a solution to display and analysis of drill hole data in QGIS. Has this project moved any further?

[banesullivan]

Unfortunately, no. This will likely not see any traction in PVGeo, though there may currently be interest in adding a C++ drillhole database reader for ParaView... time will tell.