Pipe-based water well screens combine the hydraulic efficiency of wire-wound screens with the great strength of pipe.The base pipe is perforated or slotted API casing pipe,the base pipe can be stainless steel or carbon steel API 5CT casing.The all-welded wedge wire screens are welded together with base pipe by supporting rod. The Johnson pipe based screen is recommended when high collapse resistance is required and when the screens’ length generates a high longitudinal constraint. The pipe strength allows smaller wrap wires to be used, yielding greater open area.
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
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.
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:
