A perforated screen is a filtration device featuring precisely drilled or punched holes, designed for: Sand control in oil/gas wells Fluid filtration in water wells Debris management in industrial processes
A perforated screen is a filtration device featuring precisely drilled or punched holes, designed for:
Sand control in oil/gas wells
Fluid filtration in water wells
Debris management in industrial processes
Key advantage: Customizable hole patterns for specific particle retention.
Parameter | Standard Range | Special Options |
---|---|---|
Base Material | 304/316L stainless steel | Carbon steel, titanium |
Hole Diameter | 0.5mm - 25mm (0.02"-1") | Laser-cut micro holes (0.1mm) |
Open Area | 5-40% | Optimized flow designs |
OD Size | 2" - 24" (50-600mm) | Rectangular/oval profiles |
Length | 1m - 6m (3.3'-20') | Continuous coil options |
Pattern | Advantages | Applications |
---|---|---|
Straight Staggered | High strength retention | High-pressure wells |
Slotted Linear | Maximum open area | Water intake screens |
Hexagonal | Optimal flow distribution | Filter vessels |
Step Drilled | Graded filtration | Multi-zone completions |
Method | Tolerance | Best For |
---|---|---|
Laser Cutting | ±0.05mm | Complex shapes/thin materials |
Punch Press | ±0.1mm | High-volume production |
EDM Drilling | ±0.01mm | Micro-hole arrays |
Water Jet | ±0.2mm | No heat-affected zone |
Flow Capacity:
Calculated via: *Q = C × A × √(2gΔP/ρ)*
Where:
C = Discharge coefficient (0.6-0.8)
A = Total open area
Sand Retention Testing:
Conducted per API RP 19B for gravel pack compatibility
Collapse Pressure:
Formula: *P_collapse = 2E/(1-ν²) × (t/D)³*
(E=elastic modulus, ν=Poisson's ratio)
Standard | Scope |
---|---|
API RP 19B | Sand control screen testing |
ISO 17824 | Wire-wrapped screen specs |
ASTM E2016 | Metallic perforated plate |
NORSOK M-122 | Offshore filter media |
Sector | Use Case | Special Features |
---|---|---|
Oil & Gas | Sand control screens | H₂S-resistant alloys |
Water Wells | Aquifer development | Food-grade 316L SS |
Mining | Tailings dewatering | Abrasion-resistant coatings |
Chemical | Process filtration | PTFE-lined surfaces |