Screen Pipe is a specialized steel pipe with precision-engineered slots, holes, or wraps on its surface. Its primary function is to allow fluids (such as oil, gas, or water) to enter the production string while effectively intercepting solid particles (such as formation sand). This prevents sand from eroding pumping equipment or clogging the wellbore.
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Core Functions of Screen Pipe
Effective Sand Control: Prevents formation sand from entering the wellbore, significantly extending the service life of oil and water wells.
Advanced Filtration: Acts as a primary filter to ensure that the fluids reaching the surface are relatively pure and free of debris.
Equipment Protection: Reduces the abrasive wear of sand on downhole pumps, valves, and precision instruments.
Common Types of Screen Pipe
Depending on the geological conditions and filtration requirements, Screen Pipes are categorized into the following types:
1. Slotted Liner
Process: Precision longitudinal or transverse slots are cut into the pipe wall using laser or mechanical methods.
Features: Cost-effective, structurally robust, and easy to install.
Application: Best for oil wells with mild sand production or long horizontal wells.
2. Wire-Wrapped Screen (Johnson Screen)
Process: A V-shaped stainless steel wire is wrapped around a perforated Base Pipe.
Features: Large filtration area (high open-area percentage) and non-clogging design.
Application: High-standard sand control in water well drilling and oil/gas wells.
3. Perforated Pipe
Process: Round or spiral holes are drilled into the pipe body.
Features: Offers the highest mechanical strength; often serves as the internal core for wire-wrapped screens.
Application: Deep wells with extreme formation pressure.
4. Bridge Slot Screen
Process: Features bridge-shaped openings that look like small arches.
Features: Excellent mechanical strength and high water permeability.
Application: Widely used in agricultural irrigation and geothermal well development.
API sand control screen for oil well,filter pipe Specifications
| Parameter | Details & Range |
| Standards | API 5CT, ASTM A312, ASTM A409 |
| Base Pipe Material | Carbon Steel: J55, K55, N80, L80, P110 <br> Stainless Steel: 304, 304L, 316, 316L |
| Outside Diameter (OD) | 2-3/8" to 20" (60.3mm – 508mm) |
| Wall Thickness | 0.2" to 0.6" (5mm – 16mm) |
| Length | Range 1 (R1), Range 2 (R2), Range 3 (R3) (Max 12 meters) |
| End Connections | Threaded: BTC, LTC, STC, EUE, NUE <br> Plain End: Beveled for welding |
Specific Parameters by Type
Depending on the type of Screen Pipe (Slotted, Wire-Wrapped, or Perforated), these specific metrics apply:
| Feature | Slotted Liner | Wire-Wrapped Screen | Perforated Pipe |
| Opening Size | Slot Width: 0.10mm – 4.0mm | Gap/Slot: 0.05mm – 3.0mm | Hole Diameter: 5mm – 20mm |
| Open Area (%) | 2% – 15% | Up to 40% (High flow) | 5% – 20% |
| Slot/Hole Pattern | Parallel, Staggered, Spiral | Continuous Wrap (V-wire) | Spiral or Straight Row |
| Slot Length | 50mm – 200mm | Continuous | N/A |
| Filtration Direction | Outside to Inside | Outside to Inside | Outside to Inside |
Comprehensive Screen Pipe Size Chart
This table covers the most common sizes for Slotted Liners, Wire-Wrapped Screens, and Perforated Pipes.
| Nominal Size (Inches) | Outer Diameter (OD) (mm) | Wall Thickness (mm) | Common Connection Types | Weight ( kg/m - Approx) |
| 2-3/8" | 60.3 | 4.83 – 7.11 | EUE, NUE, STC | 6.57 – 9.32 |
| 2-7/8" | 73.0 | 5.51 – 9.52 | EUE, NUE, STC | 9.17 – 14.88 |
| 3-1/2" | 88.9 | 5.49 – 12.09 | EUE, NUE, STC | 11.37 – 22.87 |
| 4" | 101.6 | 5.74 – 15.09 | LTC, STC, BTC | 13.57 – 32.14 |
| 4-1/2" | 114.3 | 5.21 – 16.00 | LTC, STC, BTC | 14.14 – 38.69 |
| 5" | 127.0 | 6.43 – 12.70 | LTC, STC, BTC | 19.35 – 35.72 |
| 5-1/2" | 139.7 | 6.22 – 14.50 | LTC, STC, BTC | 20.83 – 44.64 |
| 6-5/8" | 168.3 | 7.32 – 15.00 | LTC, BTC | 29.76 – 56.55 |
| 7" | 177.8 | 6.91 – 15.00 | LTC, BTC | 32.74 – 60.12 |
| 8-5/8" | 219.1 | 7.72 – 16.00 | LTC, BTC | 41.67 – 80.36 |
| 9-5/8" | 244.5 | 7.92 – 16.00 | LTC, BTC | 47.62 – 89.28 |
| 10-3/4" | 273.1 | 8.89 – 16.00 | LTC, BTC | 60.27 – 102.38 |
| 13-3/8" | 339.7 | 9.65 – 16.00 | LTC, BTC | 81.10 – 128.57 |
| 20" | 508.0 | 11.13 – 16.13 | BTC | 139.88 – 197.92 |
Screen Pipe Test and inspection equipment
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