HOW TO SELECT Well Screens and Gravel Packs?
November 23, 2017
stainless steel rod based screen
November 29, 2017
The welded continuous slot wedge wire screens are made up of rods and wire.The rod can be round wire, triangular wire or trapezoid wire. The wire is triangular wire (V-shaped wire).Water well screens have a structure and high open area, as well as accurate slot dimension.At the same time, water well screens have heat-resisting, anti-corrosive, good machine capability, last long,safety and reliability and so on characteristics. It can be used in many kinds of medium filtering.
johnson v wire water well screen is manufactured by a v or wedge shaped wire around an internal array of longitudinal support rods. Each intersecting point of these wire is fusion welded.
The v or wedge shaped profile wire wraps around the support rods over the full length of the screen creating a continuous slot opening, hence the screen allows water (oil) to enter your well freely in ample quantities,while at the same time keeps the majority of sand and gravel out of the well.
Water well screen pipe is made up of Vee-shaped wire and round rod in each intersection welded together.
Each slot opening between adjacent wires is V-shaped, resulting from the special shape of the wire used to form the screen surface.
The V-shaped openings, designed to be non-clogging, are narrowest at the outer face and widen inwardly.It has the firm structure, high temperature resistant, corrosion resistance, good mechanical performance, long service life, safe and reliable, etc.
It also can be used for a variety of medium.
Slot Size (mm): 0.10, 0.15, 0.2,0.25, 0.30-3 or as per customers’ requirement
Material of this Johnson screen:
Johnson screen can be produced with SS 304, 304L, 316, 316L or carbon steel
Unit length up to 6m.
Diameter from 25mm to 1200mm
Open area up to 60%
End Connection: beveled or thread coupling
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Basepipe OD (in)
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Perforations per foot
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Basepipe Hole Size (in)
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Open Area of Basepipe Holes (in2/ft)
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Wrap Wire Size Keystone (in)
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Rib Wire Size Round (in)
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Maximum OD (in)
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1.05
|
54
|
0.312
|
4.14
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0.09*0.09
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0.125
|
1.489
|
|
1.315
|
66
|
0.312
|
5.06
|
0.09*0.09
|
0.125
|
1.726
|
|
1.66
|
78
|
0.312
|
5.98
|
0.09*0.09
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0.125
|
2.126
|
|
1.90
|
42
|
0.375
|
4.63
|
0.09*0.09
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0.125
|
2.387
|
|
2.063
|
42
|
0.375
|
4.63
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0.09*0.09
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0.125
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2.55
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|
2.375
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54
|
0.375
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5.96
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0.09*0.09
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0.125
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2.86
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|
2.875
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66
|
0.375
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7.28
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0.09*0.09
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0.125
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3.362
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|
3.25
|
78
|
0.375
|
8.61
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0.09*0.09
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0.125
|
3.737
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|
3.50
|
78
|
0.375
|
8.61
|
0.09*0.09
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0.125
|
3.987
|
|
4.00
|
90
|
0.375
|
9.94
|
0.09*0.09
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0.125
|
4.487
|
|
4.50
|
102
|
0.375
|
11.26
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0.09*0.09
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0.125
|
5.001
|
|
5.00
|
114
|
0.375
|
12.59
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0.09*0.09
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0.125
|
5.506
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Features of Johnson V Wire Water Well Screen,screen wire
1. The V-shape section plane of water well screens creates the continuous slot, which can avoid blockage and make sure of the unimpeded water.
2. The longitudinal support rods and the continuous slot make the water well screenshave more excellent pressure-resistant performance.
3. Wire and support rods are all-welded, which makes water well screens more robust and longer life.
4. The consecutive slot of water well screens have wider open area, and it can reduce the speed of the water entering to avoid the sand entering the screen under the great pressure, so it can control sand better, which can increase the water yield and prolong service time of the well.
5. Specifications and end connections of water well screens can me fabricated according to customers’ requirements.
