Stainless Steel Well Screen Featuring Dual Layer Design with Welded Wedge Wire Screen and Rugged Base Pipe for Enhanced Flow Efficiency

Pipe Based Dual Screen – Product Overview

1. Product Description

Pipe Based Dual Screen is an advanced well screening solution that integrates a rugged perforated or slotted base pipe with an all-welded wedge wire outer jacket, supported by longitudinal rods. Unlike conventional single‑layer screens, the dual‑layer architecture combines the mechanical strength of the base pipe with the precision filtration of the wedge wire screen, delivering superior sand control, higher flow efficiency, and extended service life in demanding downhole environments. The outer screen jacket features a continuous V‑ee profile that ensures self‑cleaning action, while the inner base pipe maintains structural integrity even under high differential pressures. This design is particularly suitable for water supply wells, oil production wells, geothermal wells, and groundwater remediation projects where formation stability and long‑term reliability are critical.

2. Specifications 

Note: The above specifications are example values. We offer full customization – OD, wall thickness, slot size, material grade, length, and connection style can be tailored to your specific wellbore geometry and formation characteristics.

3. Key Features & Advantages

• Dual‑Layer Strength – The perforated base pipe (API 5CT compliant) provides primary collapse and burst resistance, while the wedge wire jacket adds extra mechanical protection. The integrated strength reduction of the base pipe after perforation is only 2‑3% compared to standard casing, ensuring near‑original pipe integrity.

• Precision Filtration – The V‑ee shaped slot design delivers accurate particle size control (e.g., 0.5 mm slot), effectively retaining formation sand while allowing maximum fluid inflow. The continuous slot geometry minimizes clogging and enables self‑cleaning during flow reversal.

• Superior Corrosion Resistance – SS316L grade offers excellent resistance to chloride pitting, sulfide stress cracking, and general corrosion, making it ideal for aggressive brine, CO₂/H₂S environments, and long‑term submerged service.

• High Mechanical Durability – All‑welded construction eliminates weak points; support rods prevent wire deformation under external pressure, ensuring the screen maintains its gap tolerance over decades of operation.

• Customizable Protection Jacket – An optional protective shroud can be added over the base pipe interior (or exterior) to shield against abrasive particles during installation and production.

• Low Maintenance – The robust design reduces the risk of screen failure, sand production, and well workover frequency, translating into lower total cost of ownership.

4. Quality Inspection & Testing

Every Pipe Based Dual Screen undergoes rigorous quality control in accordance with API Q1 and ISO 9001 standards. Our inspection regime includes:

• Dimensional Inspection – OD, wall thickness, slot width, length, and straightness verified with calibrated gauges.

• Material Traceability – Full chemical composition and mechanical property certificates (EN 10204 3.1/3.2) for base pipe and wedge wire.

• Slot Uniformity Check – Slot openings are measured at multiple points across the screen jacket to guarantee consistent filtration accuracy.

5. Typical Project Applications

Our Pipe Based Dual Screen has been successfully deployed in diverse geological and operational settings, including:

• Onshore & Offshore Oil/Gas Wells – As standalone screens or in gravel‑pack completions, effectively controlling sand production in unconsolidated reservoirs.

• Water Supply Wells – Municipal and agricultural water wells requiring high‑yield, low‑drawdown performance with fine sand exclusion.

• Geothermal Wells – Withstanding high temperatures and corrosive geothermal fluids.

• Coalbed Methane (CBM) & Unconventional Gas – Providing stable inflow paths in fractured formations.

• Environmental Remediation – Groundwater extraction and injection wells for contaminant treatment.

We collaborate with clients to analyze formation grain‑size distribution, well trajectory, flow rates, and fluid chemistry, then recommend the optimal slot size, material grade, and base pipe thickness to match your specific downhole conditions.

6. About Our Company

With over 15 years of experience in the design and manufacture of premium well screens and completion accessories, we are committed to delivering engineered solutions that enhance well productivity and longevity. Our facilities are equipped with advanced CNC welding machines, automated perforating presses, and  testing laboratories. We hold ISO 9001 monogram licenses, ensuring our products meet international standards.

We offer end‑to‑end support – from initial technical consultation and 3D design modeling to production, inspection, logistics, and after‑sales technical assistance. Whether you need standard stock sizes or fully customized designs, our engineering team works closely with you to develop the most cost‑effective and reliable screen for your project. We pride ourselves on short lead times, competitive pricing, and unwavering quality.

Contact us today to discuss your well requirements – we will provide a tailored proposal with detailed drawings, performance calculations, and a firm quotation. Your success downhole starts with the right screen, and we are here to make it happen.

Pipe Based Dual Screen – engineered for precision, built for endurance.