Precise Punched Slot Screen (PPS Screen）, as one of the major types of sand control screen, mainly consists of perforated base pipe, stainless steel filtration jacket with punched slot, and backup ring. Central tube is API standard casing or tubing, adopts helical perforation form to reduce aperture area of cross section of tube and retain strength of central tube as much as possible on basis of guarantee of integral area of passage of tube. The filtration jacket with punched slot is made of high quality stainless steel, and the spatial slot in high dense array over it is achieved by digital control precise punching. In the end, the filtration jacket with punched slot is welded onto the perforated base pipe through backup ring.
In application, Sand shall be blocked out of punching screen and oil, gas or water in stratum can pass punching aperture and perforation on central tube to enter into screen to realize the purpose of sand control. If needed, an extra outer protective shroud can be added outside the filtration jacket so to strengthen protection for the filtration jacket.
Features & Benefits
1. High precision slot width: from 0.2mm to 0.7mm, effectively controlling different grain size
2. High corrosion resistance increasing sand control life
3. High mechanical strength to resist to collapse and deformity
4. High density slots and low resistance to flow increasing production
Applications
1. Suitable for coarse sandstone formations
2. Ideal for open hole horizontal wells
Technical Data
| Screen | API Pipe | |||
| ID(mm) | OD(mm) | SLOT(μm) | Normal size(inch) | OD(mm) |
| 63 | 73 | 300~1000 | 2-3/8” | 60.3 |
| 74 | 85 | 300~1000 | 2-7/8” | 73 |
| 92 | 102 | 300~1000 | 3-1/2” | 88.9 |
| 103 | 127 | 300~1000 | 4” | 101.6 |
| 116 | 130 | 300~1000 | 4-1/2” | 114.3 |
| 129 | 142 | 300~1000 | 5” | 127 |
| 142 | 154 | 300~1000 | 5-1/2” | 139.7 |
| 172 | 184 | 300~1000 | 6-5/8” | 168.3 |
| 183 | 195 | 300~1000 | 7” | 177.8 |
| 220 | 232 | 300~1000 | 8-5/8” | 219.1 |
| 246 | 260 | 300~1000 | 9-5/8” | 244.48 |
| 276 | 290 | 300~1000 | 10-3/4” | 273.05 |
| 342 | 355 | 300~1000 | 13-3/8” | 339.70 |
| Length of screen 5m * 1 | Length of pipe(m) | 5.8 | ||
| Length of screen 4.5m * 2 | 9.3~9.6 | |||
| Length of screen 5m * 2 | 11~12 | |||
