drawdown of well

См. также в других словарях:

• Drawdown — has four distinct meanings: Drawdown (hydrology), a lowering of a reservoir or a change in hydraulic head in an aquifer, typically due to pumping a well. Drawdown (economics), decline in the value of an investment, below its all time high.… …   Wikipedia

• drawdown — [drô′doun΄] n. 1. a lowering of the water level of a well, reservoir, etc., as in supplying industry with water 2. a reduction or depletion …   English World dictionary

• Well test — This article discusses water well testing; the testing of other wells, eg. petroleum wells, is a separate field.A well test is conducted to evaluate the amount of water that can be pumped from a particular water well. More specifically, a well… …   Wikipedia

• Drawdown (hydrology) — In water related science and engineering there are two similar but distinct definitions in use for drawdown. In subsurface hydrogeology, drawdown is the change in hydraulic head observed at a well in an aquifer, typically due to pumping a well as …   Wikipedia

• drawdown — /draw down /, n. 1. a lowering of water surface level, as in a well. 2. a reduction or depletion: a drawdown of weapons in an arms limitation plan. [1780 90, for literal sense; DRAW + DOWN1] * * * …   Universalium

• drawdown curve —    A plot of drawdown with radial distance from a well [16] …   Lexicon of Cave and Karst Terminology

• drawdown —   the change in the level of the upper water surface in a well or reservoir which is due to the withdrawal of water …   Geography glossary

• drawdown — draw•down [[t]ˈdrɔˌdaʊn[/t]] n. 1) cvb a lowering of water surface level, as in a well 2) cvb bus a reduction or depletion • Etymology: 1915–20 …   From formal English to slang

• drawdown — I. ˈ ̷ ̷ˌ ̷ ̷ noun ( s) Etymology: draw down 1. : the distance by which the fluid surface level (as in a well or reservoir) is lowered (as by pumping or gate opening) 2. : the curving downward of the water surface near the edge of a weir n …   Useful english dictionary

• curve, drawdown —    A plot of drawdown with radial distance from a well [16] …   Lexicon of Cave and Karst Terminology

• specific drawdown —    The amount of drawdown per unit discharge in a well [16] …   Lexicon of Cave and Karst Terminology