Wedge wire intake screen


2017-10-14Tags:intake screen,screen ,wedge wire screen,Posted By summer

Advantage:

MAXIMIZING FLOW RATES
When considering screens of equal length, diameter and slot size, flow rates through V-shaped well screens can be;
Three times higher than bridge-slot screens
Nine times higher than slotted casing
NON-CLOGGING SLOT
Continuous-slot well screens have V-shaped openings that narrowest at the outer face and widen inwardly, thus, oversized particles are retained outside the screen and particles passing through the narrow outside opening can enter the screen.
REDUCTIONS IN OPERATING COSTS
By using a Continous-slot well screen, savings can be achieved in pumping costs. Lower through-slot velocities mean that pressure drops are minimized, therefore;
Drawdowns are reduced.
Less energy is needed for pumping.
Flow rates are increased.
Less sand in the water reduces wear on the pumps.

Character:

1. Screens with high open area are more suitable for the construction of high-quality water wells, oil wells and gas wells. 
 
2. Low cost operation       Screens with high open area shall favor groundwater infiltration. Abundant water shall reduce the water level's down, thus to save energy consumption.
 
3. Reduce the abrasion of the pump             Under the same condition, high open area can make the speed of groundwater's entering into the screen much slower than any other filtration apparatus, which will avoid sand's entering into screen because of high pressure, thus reduce the abrasion of the pump.
 
4. Extend the life span of wells    Comparatively, groundwater's entering into screen with higher open area is much easier than the entering into lower open area screen. The slow water flow shall extend the life span of wells.
 

Application:

The continuous-slot well screen is widely used throughout the world for water, oil, and gas wells, and is the dominant screen type used in the water well industry.
1.The continuous-slot well screen is recommended in the following situations;
2.Water wells where gravel packs will be installed
3.Thin aquifers, where maximum open area is required
4.Formation comprised of small or fine particles
5.Small diameter wells

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