Perforated Screen
- Product Description:
- Perforated screen, mainly made of stainless or mild steel, is also called perforated casing pipe. It is used as connection support to make easy flow of oil or gas to the wellbore. Punched holes are distributed in straight line or staggered forms, and the open area of staggered type pipe is larger than the straight type pipe.Hose sizes, patterns and pitches (hose spacing) can be customized.Each Perforated Casing made by us is deburred and drift tested to conform to API standards, and each opening is clean cut and visually inspected and deburred.
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.
N = 12*D*C/25*D²
N- refers to the number of holes per foot.
D-refers to the outside diameter of the liner in inches.
C- refers to the required open area (percent of surface area).
D-refers to the diameter of hole in inches.
Features
1. High strength and less potentiality of deformation.
2. Punched holes are smooth and clear without burrs.
3. Easy installation.
4. Durable and long service life.
5. Six types of punched holes are available for specific application.
6. Two types of holes distribution are manufactured.
Specification
| Pipe Size | Holes per feet | Size of hole | Perforated Area per Feet |
| 3/4" | 78 | 3/16" | 2.15 |
| 1" | 54 | 5/16" | 4.14 |
| 1-1/4" | 66 | 5/16" | 5.06 |
| 1-1/2" | 78 | 5/16" | 5.98 |
| 2-1/16" | 78 | 5/16" | 5.98 |
| 2-3/8" | 90 | 3/8" | 9.94 |
| 2-7/8" | 102 | 3/8" | 11.26 |
| 3-1/2" | 126 | 3/8" | 13.91 |
| 4" | 138 | 3/8" | 15.24 |
| 4-1/2" | 150 | 3/8" | 1&56 |
| 5" | 162 | 3/8" | 17.88 |
| 5-l/2" | 174 | 3/8" | 19.21 |
| 6-5/8" | 186 | 3/8" | 20.53 |
| 7" | 222 | 3/8" | 24.51 |
| 9-5/8" | 294 | 3/8" | 32.46 |
Application
The perforated casing is mainly used for the application of oil reservation layer without much sand or for application of prevents the rock bits dropping off the well bore.And Perforated casing is often used as base pipe for wire wrapped screen, pre packed wire wrapped screen & metal mesh screen.
