VPRS 19344 Well Log Files

Full description

This series contains files of data collected by geologists while drilling well holes within Victoria.

Well holes (otherwise known as drill or bore holes) are narrow shafts drilled into the ground for various purposes, including geotechnical investigation, mineral exploration, environmental assessment, temperature measurement, or the extraction of water, petroleum, or gases.

The data collected assist in identifying geological strata and provide valuable information on the chemistry of fluids trapped in rocks and are an essential tool for groundwater, oil and gas exploration, as well as carbon capture and storage. The data is irreplaceable, as once a well has been drilled and capped, it becomes impossible to repeat the logging. This data may include not only readings taken with different monitoring equipment but also interpretation of that data.  

The files include borehole compilation files, borehole geophysical logs and pumping tests, Geological Survey of Victoria (VA 4118) internal drilling files, State Electricity Commission of Victoria (VA 1002) compiled data, and data from stratigraphy, coal analysis, E-logs and gamma rays.

While many of the records are undated, they appear to have been created in the 1950s-1970s and then compiled as a reference resource in the Department of Natural Resources and the Environment (VA 3972) from the late 1990s.