Perforated liner is manufactured by multi spindle drill presses. It is deburred internally and externally, and every hole is visually inspected to make sure all burrs are cleaned up according to API standards.
Perforated casing is often used as base pipe for wire wrapped screen, pre packed wire wrapped screen & metal mesh screen. Hose sizes, patterns and pitches (hose spacing) can be customized.
Hole Sizes
Standard hole sizes: 9.5mm, 13mm, 14mm, 16mm, 19mm and 25mm. Other hole diameters are available.
Hole Pattern:
Holes can be staggered or in straight line as the following pictures from fig 1 to fig 3. Holes are commonly arranged in spiral shape. Straight line is possible.
Pitches
Pitches can be 1", 2", 3", 4", 6" or 12". 2", 3" and 6" are recommended.
Perforated Casing
How To Work Out Open Area of Perforated Liner?
Open area will influence production and sand filtration. It is determined by hole diameter, the number of holes and the diameter of the liner. The following formula will tell you how to calculate the open area.
Perforated Liner Hole Arrangement
| API Pipe Size (inch) | OD Pipe (mm) | ID Pipe Sch40 (mm) | ID Pipe Sch80 (mm) | OD Coupling (mm) | Holes per foot Standard pattern |
|---|---|---|---|---|---|
| 2 | 60.33 | 52.51 | 49.25 | 73.0 | 84 |
| 2 7/8 | 73.03 | 62.71 | 59.01 | 88.9 | 96 |
| 3 1/2 | 88.90 | 77.92 | 73.66 | 108.0 | 108 |
| 4 1/2 | 114.30 | 102.26 | 97.18 | 127.0 | 168 |
| 5 1/2 | 141.30 | 128.20 | 131.77 | 153.7 | 192 |
| 6 5/8 | 168.30 | 154.08 | 146.36 | 187.7 | 204 |
| 8 5/8 | 219.08 | 202.72 | 193.68 | 244.5 | 240 |
Get In Touch
Just tell us your requirements and your problems, we will help you solve them. Our professional sales representatives will provide you the suggestions of sand control screens and applications.
Queelian Wong +86-15963806918/+86-0633-3691680
E-mail sales@goldoxwiremesh.com
Address No. 252 Beijing Road Rizhao City, Shandong Province, China.
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