Worlds of David Darling
Encyclopedia of Science
   
Home > Encyclopedia of Alternative Energy

well





A shaft sunk vertically into the Earth's crust through which water, oil, natural gas, brine, sulfur, and other mineral substances can be extracted. Artesian wells are sunk into water-bearing rock strata, the so-called aquifers, from which water rises under pressure to the surface.


Related category

   • WATER SUPPLY