Slotted Liner

Slotted liners are made from tubulars by saw-cutting slot configurations. Slot widths are often referred to in terms of gauge. Slot or screen gauge is simply the width of the opening in inches multiplied by 1000. For instance, a 12-gauge screen has openings of 0.012 in.

The slots can be straight or keystone shaped, as illustrated in following picture. The keystone slot is narrower on the outside surface of the pipe than on the inside. Slots formed in this way have an inverted ”V” cross-sectional area and are less prone to plugging because any particle passing through the slot at the outside diameter of the pipe will continue to flow through, rather than lodging within the slot.

Application

The slotted liners are usually less costly. They have smaller inflow areas and experience higher pressure drops during production. Slotted liners also plug more readily than screens. They are used where well productivity is small and economics can not support the use of screen.

We Make our slotted drain in house at Foster Supply. We provide the product in any combination of pipe size and slot height that the customer wants. It is available in 2 ½“, 6”, and 8 ½“ slot heights. Generally this product is utilized in combination with 8' to 24' pipe although on some projects other sizes may be specified. Section of 4004-060AB 6' Schedule 40 PVC Pipe is rigid and durable for a wide range of uses. The actual outside diameter of 6' nominal size PVC pipe is 6.625 in. This industry standard size pipe fits with 6' nominal size PVC fittings and valves. PVC pipe is used in everything from drainage to plumbing and craft projects.

Perforated Pipe

The perforated Liner or Pre-perforated Casing is manufactured with a 44ft 88 spindle drill press. Joints with sizes up to 20” Length range 3 and grades up to 13CR110 are perforated in one handling.

Our standard spiral and staggered perforation patterns use3/8” and 1/2” diameter holes, to create the required open area.

Upon request, custom sizes hold can be drilled in any number and any pattern.

Pipe is deburred internal and external as well as drift tested according to API standards. Every hole is visually inspected and cleaned of burr material.

The size, grade and weight of the base-pipe are according to API casing or tubing specification.

Wire Wrapped Screen

The wire-wrapped screen consists of perforated pipe, outer jacket, end ring and centralizer. Key-stone or house shape wires are simultaneously wrapped and welded to form uniform slots.

The jacket is then placed over perforated pipe and welded to each end. The wire-wrapped screen’s strength, high quality and precise slot control make it an excellent choice for deep, vertical wells as well as horizontal wells.

ADVANTAGES

Key-stone shaped slot pattern, low risk to plugging, easy to clean

Superior resistant to corrosion and long lifespan in applications

Optimized design for perforation, all welded structure, high mechanical strength which is competitive with casing of the same size.

Minimum slot opening: 0.1mm, which can satisfy the most of well-completion requirements.

High flow area

The technical is mature, good adaptability.

APPLICATION

Gravel-packing in cased-hole completions of vertical wells, directional wells, horizontal wells, multi-lateral wells and open-hole completions.

Bridge Slot Screen

Screen features bridge-like slot, which creates a gap between the well casing and the packed gravel.

Bridge slots are spaced in rows or in staggered state.

Bridge slotted screens are first punched in a flat sheet, which is completely CNC operated. The slot widths are precise and can change as practical requirements. Then the flat sheet is subsequently rolled and welded into a tube.

Bridge slot screen has extensive applications, including water and oil wells, development of geothermal development and mineral water.

ADVANTAGES

Bridge slot has outstanding anti-plugging performance for its unique bridge construction.

Bridge construction also enhances the mechanical strength against twisting, compressive and tensile forces.

Diverse external coatings are available to extend the operational lives of watering wells.

Bridge slot screen is lightweight and quire affordable compared with other conventional well screens.

Slot widths can be customized to satisfy customers’ specific requirements.

Multilaysers Premium Screen

Multilayers Premium Screen performance is derived from two characteristics, the filter media and secondly the overall construction of the screen. Consists of base pipe, layered filtration jacket and outer shroud.

6 Slotted Pvc Drain Pipe

Hawk Plastics PVC Perforated Pipe

In some areas of the country this pipe is referred to as “Drain Tile” or Drainage Tile”

Available with perforated pipe socks – Helps eliminate dirt and debris from entering pipe.

Full Specifications Compliance with ASTM F758 and AASHTO M278

HAWK PLASTICS PERFORATED PRODUCTS: UNDERDRAIN & EDGE DRAIN
CONFORM TO THE FOLLOWING STATE’S DEPARTMENT OF TRANSPORTATION SPECIFICATIONS
ALDOT, FDOT, MDOT, SCDOT , NCDOT, GDOT, TXDOT, TDOT

6 Slotted Pipe Hangers

<<< STOCK PRODUCTS ARE ASTM F 758 AND AASHTO M 278 HOLE PATTERNS >>>
ΦΘ CUSTOM HOLE PATTERNS ARE POSSIBLE UPON REQUEST AND AFTER RECEIPT OF ORDER ΦΘ

PACKAGES FOR TRUCKLOAD QUANTITIES OR CUSTOMER PICK UP

HAWK PSM PVC PERFORATED PIPE

6 Slotted Drain Pipe

Airport and Highway Underdrain Pipe

Also meets AASHTO M-278 Class 50 PVC Smooth Wall Perforated Pipe

10 FEET LENGTHS & NARROW BUNDLE PACKAGING FOR LTL FRIENDLY SHIPMENTS

*NOTE: Gasketed perforated pipe, a non-stock item, is available by request only.

**NOTE: STANDARD 10/0’ Laying Length-20.0’ Length Special. Other SDR perforated pipe available from Factory upon request.
Consult sales for your requirements.

***NOTE: Same stiffness as 6” Schl. 40 IPS Pipe.