Multilayer Johnson screen pipe for water well drilling
1. Higher filtering accuracy: all-welded wedge wire screens as screen jacket with vee opening design makes the filtering accuracy higher, which can control sand better.
2. Excellent strength and resistance to deformation: The base pipe inside, the outside can be protected with the protection jacket added according to requirements,the integrated strength of the perforated base pipe only decreases 2~3% compared with the standard casing/oil tubing, so the pipe based well screens have enough integrated strength to resist to thepressure caused by strata.Even if some part of the well screens deformed, the slot of this part will not be widened, which makes higher sand control reliability.    
3. More choice: the material of screen jacket can be stainless steel or carbon steel, the material can be chosen as per customers’ requirement.
4. The smaller slot will increase the oil and water production.
5.The excellent technique makes the mass production with high efficiency and low cost available.

Base Pipe
Material	Stainless Steel 304/304L/316/316L, as well as K55,J55,N80,L80,etc
Wall thickness	9.19mm or other required sizes
perforation size	12mm,16mm,19mm,20mm,etc
open area	16% or other required apen arean
Length	Range length like R1,R2,R3, or fixed length 5.8-6m
Connection type	Buttress Thread or LTC,STC
Screen Jacket
Material:	Stainless Steel 304/304L/316/316L
Wire size	Width(mm): 1.50 1.80 2.30 3.00 3.30 3.70 4.00 Height(mm): 2.20 2.50 2.70 3.60 4.30 4.70 5.60 6.30 7.00
Support rod	Width(mm): 2.30 3.00 3.30 3.70  Height(mm): 2.70 3.60 4.70 5.60 6.30 Round: From 2.50mm to 6.0mm
Slot size	0.025inch(0.635mm)or other required size
Open area	20% or other required size depends on the slot size and wire size
For well depth	hundreds meters well even more than one thousand depth well

 
 
FAQ:

a. Screen size or OD: depends on the downhole diameter and pump size.

b. Material: decided by the PH value of water.

c. Slot size and perforated size: according to the water flow and gravel size.

d. Collapse strength and Tensile strength: depends on the depth of screen will be installed to.

e. Connection: Thread ends(pin and box ends). 

f. Unit Length: range length like R1,R2,R3, or fixed length of 5.8m.

g. Packing: inner packing of bubble bag/woven bag and out packing with wood strips.

Application for Continuous slot pipe based water well screens/wedge wire screens
Water Well Drilling
Commercial well drilling
Domestic Well Drilling 
Agricultural Wells
Monitoring Wells
Dewatering well
Geothermal Wells
Oil wells

 Henan Tianzhiwo Machinery Co., Ltd are specialist manufacturers about Screens and Filters. They are widely used for water, oil and gas wells in the world. As China chief manufacturer and exporter, we export good quality water well screen to many countries. Main products cover bridge slot screen, wire wrapped well screen, stainless steel Johnson screen, water well screen, wedge wire screen, sieve bend screen, pipe base screen and sand control screen. We sincerely would like to set up business relationship with clients from all over the world in long term business.Contact information:

Bella / Overseas Manager
Henan Tianzhiwo Machinery Co., Ltd 
Add:Filter Industrial Zone,Beihuan Road,Muye District,Xinxiang City,Henan P.R.China
Tel  :0086-373-2638828
Fax :0086-373-2638828
Mob :0086 -18568219353  (Wechat /WhatsApp Or Viber)
Skype:bella1990815
QQ:3045852613

4 1/2＂ Water Source Wells Pipe Based Wire Wrapped Screens