Pipe Base Screen with dual barrier design offering enhanced durability and corrosion resistance for water and gas well completions

Dual-Layer Screen Jacket (Perforated Base Pipe with Wrapped Screen)

When it comes to sand control and formation stability in demanding downhole environments, one size never fits all. That’s why our Dual-Layer Screen System – combining a precision‑perforated base pipe with a rugged outer screen jacket – has become a go‑to solution for operators tackling everything from high‑rate water wells to high‑pressure gas completions. This isn’t just another screen; it’s a carefully engineered barrier designed to keep formation solids where they belong while maximizing your productive life.

Let me walk you through what makes this product stand out – from the shop floor to the wellhead.

1. Structural Integrity & Dual‑Barrier Design

At its core, this system starts with a heavy‑duty base pipe that’s strategically perforated to allow flow while maintaining burst and collapse ratings that drilling engineers appreciate. Over that, we wrap a continuous‑slot screen jacket made from precision‑wound wire. The result? A dual‑layer defense that distributes mechanical stress more evenly than single‑layer alternatives. Whether you're running it in a vertical well or a deviated hole, the reinforced structure reduces the risk of screen deformation under compaction – a real peace‑of‑mind factor when you're dealing with unconsolidated formations.

2. Material Versatility for Corrosive & Sour Service – we offer a broad selection to match your specific fluid environment:

• Base pipe grades – J55, K55, N80, L80, and P110 – covering standard carbon steel needs.
• Outer jacket materials – SS304, 304L, and 316L stainless steel, with 316L giving you extra resistance against H₂S and CO₂ for sour service.
• Cost‑effective combinations – pair a carbon steel base with a stainless jacket for sweet service, balancing budget and longevity.
• Full traceability – all materials come with mill certificates and heat numbers, so you know exactly what's going downhole.

3. Sizing & Compatibility – From Slimhole to Big Bore

We don't believe in forcing your completion design to fit our stock. Our dual‑layer screens come in a full range of outer diameters, all compatible with the industry‑standard threads you already use:

Whether you're on a slimhole recompletion or a large‑diameter water well, there’s a size that drops right into your casing program – and with the thread options above, you won’t need to retool your string.

4. Optimized Flow Performance & Plugging Resistance – engineered to keep production high and intervention low:

• Base‑pipe perforations – standard hole diameters of 9, 11, 16, and 19 mm, carefully sized to balance inflow area with mechanical strength.
• Outer jacket slot design – follows our proven single‑layer screen parameters, giving you precise control over particle retention.
• Reduced plugging risk – the dual‑layer geometry improves annular flow distribution, so fines are less likely to bridge and block the screen.
• Lower drawdown pressures – field data shows operators often cut drawdown significantly after switching to this design, meaning higher production rates with less energy loss.

5. Application‑Specific Engineering & Field Provenance – this screen isn’t just lab‑tested; it’s been run successfully in diverse environments:

• Deep water wells – long‑term reliability in abrasive aquifers, with proven erosion resistance.
• Oil wells – controls sand production that would otherwise wear out pumps and surface facilities.
• Gas wells – stands up to high‑velocity flow, reducing the risk of erosion and slot enlargement.
• Vertical wells – our standard 0–12 m length range lets you build blank‑screened‑blank configurations exactly as your completion design requires.
• Workover & development – many production engineers keep these as their go‑to item, thanks to consistent quality and short lead times.

6.Related Products

OASIS product range covers every component you might need for a sand‑control string – screens, blanks, crossovers, packers, and accessories – so you can consolidate your entire completion order with one trusted supplier.

In a nutshell: If you're responsible for completion design, production optimization, or workover planning, this dual‑layer screen gives you the structural margin, material flexibility, and hydraulic performance to handle tough sand‑control jobs. It’s built with the end‑user in mind – easier to run, harder to plug, and backed by full traceability.

Let’s talk about your next well – we’ll help you spec the right combination of base pipe grade, screen material, thread type, and slot gauge to match your specific reservoir conditions. 

Get in touch – we're happy to share test data, slot‑size selection guides, or arrange a virtual walk‑through of our manufacturing process. Your success downhole starts with the right screen up front.