a process of drilling into the earth's subsurface to collect geological data and information about the composition of the soil, rocks, and underground formations
They test drilled to 2000 metres.
The geology team conducted a test drill in the remote region to analyze the soil composition and identify potential mineral deposits.
Before initiating the mining project, the company performed several test drills to assess the quality and quantity of ore in the area.
Oil and gas companies often invest in extensive test drilling operations to locate promising reserves and evaluate the economic viability of extraction.
Environmental impact studies include test drilling to examine subsurface conditions and assess potential risks to groundwater in the proposed construction site.
The geotechnical engineer recommended a series of test drills to gather data on soil stability before the construction of the new bridge.
