well drainage

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• Well drainage — means drainage of agricultural lands by wells. Agricultural land is drained by pumped wells (vertical drainage) to improve the soils by controlling water table levels and soil salinity. Contents 1 Introduction 2 Design 3 Flow to wells 4 …   Wikipedia

• Drainage law — is a specific area of water law related to drainage of surface water on real property. It is of great importance in areas where freshwater is scarce, where flooding is common, or where water is in high demand for agricultural or commercial… …   Wikipedia

• Drainage density — is the total length of all the streams and rivers in a drainage basin divided by the total area of the drainage basin. It is a measure of how well or how poorly a watershed is drained by stream channels. It is equal to the reciprocal of the… …   Wikipedia

• Drainage model — may refer to: a surface drainage model or rainfall runoff model      see surface runoff, runoff model (reservoir) , or a software site providing free download of a conceptual rainfall runoff model (RainOff) based on a… …   Wikipedia

• Drainage basin A — Drainage Basin A, main river in this system is the Limpopo River, but is subdivided into 9 sub drainage basins. A1 is situated along the Botswana border, and is again divided into 3 river basins A10A covers the Ngotwane River up to and including… …   Wikipedia

• Well stimulation — is a well intervention performed on an oil or gas well to increase production by improving the flow of hydrocarbons from the drainage area into the well bore.Cleaning the formationThe assortment of chemicals pumped down the well during drilling… …   Wikipedia

• Drainage — See also: Storm drain and Stormwater Deep inside a Sydney drain in New South Wales Drainage is the natural or artificial removal of surface and sub surface water from an area. Many agricultural soils need drainage to improv …   Wikipedia

• Drainage basin — Example of a drainage basin. The dashed line is the main water divide of the hydrographic basin A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit… …   Wikipedia

• Drainage system (Agriculture) — An agricultural drainage system is a system by which the water level on or in the soil is controlled to enhance agricultural crop production.=Classification=Figure 1 classifies the various types of drainage systems. It shows the field (or… …   Wikipedia

• Drainage system (agriculture) — An agricultural drainage system is a system by which the water level on or in the soil is controlled to enhance agricultural crop production. Contents 1 Classification 1.1 Surface drainage systems 1.2 Subsurface drainage systems …   Wikipedia

• Drainage equation — A drainage equation is an equation describing the relation between depth and spacing of parallel subsurface drains, depth of the watertable, depth and hydraulic conductivity of the soils. It is used in drainage design. Parameters in Hooghoudt s… …   Wikipedia