Introduction of Johnson screen filter
Johnson screen filter are manufactured by a v or wedge shaped wire around an internal array of longitudinal support rods.
The world advanced all-weld technology is used with each intersecting point of these wire fusion welded, which creates the robust construction and excellent mechanical performance.
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.
The slots can be changed according to different strata.
Advantages
1)Non-clogging construction
The V-shape section plane of wedge wire screens (Johnson type screen) creates the continuous slot, which can avoid blockage and make sure of the unimpeded water.
2)Large filtering area
The consecutive slot of wedge wire screens (Johnson type screens) has 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.
3)Long service life
Wire and support rods are all-welded, which makes wedge wire screens (Johnson type screens ) more robust and longer life.
4)Excellent construction strength
The longitudinal support rods and the continuous slot make the wedge wire screens (Johnson type screens ) can be fabricated according to customers' requirements.
Note: Wires, rods and slot sizes can be customized according to customers' requirements.
Specifications
Slot Size (mm): 0.10, 0.15, 0.2,0.25, 0.30-3 or as per customers' requirement.
Material: carbon steel, stainless steel (304, 316,304L,316L etc.).
Unit length up to 6m (or according to clients' requests).
Diameter from 25mm to 1500mm (or according to clients' requests).
Open area: up to 60%.
End Connection: welded or threaded coupling, or flange.
| Johnson screen filter |
| Screen Size(mm) |
Inside Diameter (mm) |
Outside Diameter(mm) |
OD of Female Threads End (mm) |
| 51 |
51 |
67 |
70 |
| 76 |
76 |
92 |
95 |
| 102 |
102 |
117 |
121 |
| 127 |
127 |
143 |
146 |
| 152 |
152 |
168 |
178 |
| 203 |
203 |
219 |
235 |
| 254 |
254 |
273 |
289 |
| 305 |
305 |
324 |
340 |
| 356 |
333 |
356 |
- |
| 406 |
381 |
406 |
- |
| 508 |
476 |
508 |
- |
1.All Dimensions of Best-Selling Stainless Steel Pipe Based Well Screen for Water Well will be checked by our quality inspector, and they also can be inspected by Third Party Inspections or representative appointed by buyer.
2.Wall thickness of casing is inspected by Ultrasonic inspection method, and they also be made the Ultrasonic flaw detection.
3.Do Destructive Collapse Test and collapse Strength Test before shipment.
4.If required, the casing will be made pickling and passivation treatment.
5.The whole manufacturing process can be monitored by Third Party Inspection Company and representative appointed by buyer.
6.The casing will be arranged the Pre-shipment Inspection if required.
Package:
1)Plastic threaded caps cover the both side of the pipes;
2)Wood support pipes;
3)Wire reinforce inside of the container;
4)Under the same shipping fees, we choose the quick shipping line to save time for the clients.
Company information:
Oasis Oil Tools Co.,LTD, located in the industrial park of high-tech enterprises in Fengquan District, Xinxiang City, covers more than 20000 square meters with more than 150 staff, among them 6 persons are senior engineer. OASIS is a famous manufacturer which integrates the research and development, design, manufacture and sell water well screens/ Johnson screens, oil well screens and sand control well screens, bridge slotted well screens, pipe based well screens, perforated pipe (base pipe), gravel pre-packed well screens, wedge wire screens, passive water intake screens etc. water, oil and gas well filtering products as well steel tubes and pipes and industrial parts.
Oasis has the right to export well screens independently. Our water well screens have been exported to Russia, Sudan, Tunisia, Morocco, Saudi Arabia, Slovenia, Indonesia, Philippines, Vietnam, Canada, Bolivia, Ecuador, Columbia etc. Countries, and have received good feedback from customer at domestic and abroad.
Contact:
Any enquiry about our products, contact us for more details. We are always ready to serve you at any time. Highly appreciate your question and visiting.
Add:Xuanhe West Road, Fengquan District, Xinxiang. Henan, China
Tel: 0086 373 2947626/Fax: 0086 373 3091997
Website: http://wedgewirescreen.en.made-in-china.com
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