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(Redirected from Artesian well)
Geological strata giving rise to an Artesian well
Geological strata giving rise to an Artesian well

An artesian aquifer is an aquifer whose water is overpressurized. Water will thus flow out of an artesian well without pumping.

Why is a well artesian?

Because its recharge zone is higher than the head of the well.

Pascal's Law predicts the overpressure:

 Poverpressure = ρg(zrecharge - zwellhead)

where ρ is the volumic mass of the fluid, g the acceleration due to gravity, and z is height.


First recorded in 1830, from French puits artésien "wells of Artois," French province where such wells were first bored 18th century by Bélidor .

Last updated: 01-28-2005 09:00:58
Last updated: 02-24-2005 04:26:49