VPRS 19325 Drilling Rig Activity Records

This series contains records of boring operations submitted to the Mines Department (VA 612) and subsequent government departments. The records are primarily weekly and daily drilling reports, containing details such as date, location (Parish) of borehole, surface level, position of bore, bore number, drill name and number, time drilled and material found (e.g. Basalt), name of driller, and any remarks made by driller – for example, coring, water and sands found, and any injuries or defects in machinery. Other records within this series include final reports of completed bores, lithological reports, geologist logs, ‘D7’ drill reports, and correspondence. Boreholes (also known as drill or well 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. This series is related to VPRS 19326 Drilling Unit Weekly Reports.