The word 'borehole' is correct and commonly used in written English.
It refers to a deep hole drilled into the ground, typically for the extraction of water, oil, or gas. Example: The team of scientists drilled a series of boreholes to study the composition of the Earth's crust.
He pumps this, with electricity given free to farmers in AP, from a borehole drilled 45 metres into his land.Since the 1970s, when affordable water pumps became available and electricity reached many more places, millions have done the same.
In the Hai river basin in China, for example, deep-groundwater tables have dropped by up to 90 metres.Part of the beauty of the borehole is that it requires no elaborate apparatus; a single farmer may be able to sink his own tubewell and start pumping.
The steam, emerging from millions of slits in a steel borehole liner, liquefies the bitumen and allows it to be pumped out.Using steam extraction means that nine-tenths of the land above a reservoir can be left intact.
It will insert a microwave-transmitting antenna into a horizontal borehole with the circumference of an arm but the length of a football pitch.
Solar panels are being installed, a borehole drilled for water, a concrete access road laid to link up with the coastal highway.
Clusters of houses now share taps of running water from a borehole pumped to an elevated tank.
Research into borehole disposal, as it is known, is now taking off, says Fergus Gibb, a geochemist at the University of Sheffield in England.As an extra precaution, he says, canisters could be designed so the hot waste melts the adjacent rock.
Groundwater has come to the rescue, and for a while it seemed a miraculous solution: drill a borehole, pump the stuff up from below and in due course it will be replaced.
Lisa Grant, a drilling engineer at Shell, says MWD enables the drilling of wells today that were "not even contemplated" five years ago.With an in-well communications channel established, oil companies are devising new ways to analyse the subsurface, including the use of "borehole seismic" tools.
