natural well

natural well

[′nach·rəl ′wel]
(geology)
A sinkhole or other natural opening which resembles a well extending below the water table and from which groundwater can be withdrawn.
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References in periodicals archive ?
Argentina anticipates to drill 44 natural wells at depths of 13,114 feet.
Decline in natural wells leads to a decrease in gas production
He said that the lands were originally designated as farm land because they had natural wells which could sustain farms, but after land reclamation the wells dried up.
However, without FDI, Egypt could will become an importer of crude oil by 2015 as its natural wells atrophy and depletion ratio rises.
The inspectors confirmed that the safety valves were shut going to the platform's oil and natural wells, pipelines were closed and the platform's tanks and pumps "are secure," the department said.
Hashlamoun also assured that hygiene standards start from the moment the water is pumped out of the natural wells throughout all stages till itAAEs ready for distribution to all districts of the Kingdom in bottles of 1.
We took a leisurely inner-tube ride down a lazy river, then jumped into natural wells fed by subterranean rivers.
Produced using water from four natural wells within the Abbey Notre Dame De Leffe in the province of Namur, this is quality over quantity.
CO2 comes from a variety of sources including ethanol plants, oil refineries, ammonia plants and natural wells.
This is why we are ensuring that rainwater and other solvents enter the soil rather than go to natural wells and springs.
Aquafina water in the Middle East and Africa generally originates from the company's own natural wells and is then purified through a rigorous, seven-step purification process called Hydro-7ao.
Hansen said the plants discovered Monday were apparently a commercial operation with a sophisticated irrigation system that used several thousand feet of pipes to bring water from natural wells in the mountains.