A hole drilled, bored or dug into the ground into which a well casing is placed.
A hole drilled into the ground, usually for sampling minerals, soil or water. Thousands of boreholes exist in the Tar Creek area.
a well that is drilled near a spring
Any deep or long drill-hole, usually associated with a diamond drill.
A cylindrical hole drilled into the ground, into which instrumentation, such as seismometers, can be lowered. Since they can be many meters deep, boreholes allow instruments to operate with less interference from weather, passing cars, unstable soils, and other phenomena that occur at the surface.
a deep hole of some thousand meters for extracting oil or gas from the ground.
A hole drilled into the earth, usually to determine the location of minerals or aquifers for wells.
Drilled hole used to abstract, recharge or monitor groundwater
A hole drilled into the ground at any angle to secure geological information.
Hole made with drilling equipment.
Any long or deep drill-hole, usually associated with a diamond drill.
A well constructed by machinery, usually less than one metre in diameter. Usually constructed vertically, but inclined boreholes are occasionally constructed.
A hole cut into the ground by means of a drilling rig or an auger.
Any exploratory hole drilled into the Earth or ice to gather geophysical data. Climate researchers often take ice core samples, a type of borehole, to predict atmospheric composition in earlier years. (EPA)
A deep well from which underground water can be pumped
The hole as drilled by the drill bit.
a vertical hole drilled in the earth to insert pipe to transfer heat from the soil.
the wellbore itself, including the open hole or uncased portion of the well. Borehole may refer to the inside diameter of the wellbore wall, the rock face that the bounds the drilled hole.
A hole in the Earth's crust, produced by drilling from a rig.
The hole made by the drill bit
Synonym for water well, especially outside of North America.
A borehole is a deep and narrow shaft in the ground used for extraction of fluid or gas reserves below the earth's surface. If the fluid reserve is under pressure, such as oil or gas, then extra machinery may be required. For water a special type of submersible pump is used to pump water up to the ground surface.