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  • HFW steel pipe,Galvanized pipe,RHS section
  • HFW steel pipe,Galvanized pipe,RHS section
  • HFW steel pipe,Galvanized pipe,RHS section
  • HFW steel pipe,Galvanized pipe,RHS section
  • HFW steel pipe,Galvanized pipe,RHS section
  • HFW steel pipe,Galvanized pipe,RHS section

Slotted Pipe

Application: Used as Walls Structural Retainers and Screen Pipes for Oil, Gas and Water Wells

Size: OD: 50mm - 500mm;

WT: less than20mm;

LENGTH: less than 15m

Slot&Holes specification: as customer require

Standard & Grade: API ,API5CT


Process Type: Seamless (SMLS), Electric Resistance welded(ERW)

End: Plain, Beveled, Square Cut, with LTCISTC/BTC connection

Surface:Anti-corrosion&water Painting

Packing: Protection Caps in Both Ends, waterproof Paper wrapped

  • Description
  • Specification
  • Standard
  • Process
  • Packing

Slot and perforate on the pipe body to be slotted pipes. The types of slot are perforated,Rectangular slotted, Trapezoid slotted,Bridge slotted, Wire wrapped screen, Mechanical cutting, Compound slotted pipe.

The slotted pipe is using in oil exploration to prevent sand, decrease oil well repaired, increase oil wells strength,integrality and stability of keeping off sand.

1.Casing slotted pipe specification:

O.D.: Casing: 4 1/2"-20"(114.3mm-508mm)Tubing:1.05"-41/2"(26.7mm-114.3m)

Length:R1:4.88-7.62M,R2:7.621-10.36M,R3:10.36-14.63MW.T.:0.205”"-0.875” (5.21mm- 22.22mm)

Product standards: API 5CT, BS EN ISO11960,NFM87-207,JIS G3439,ISO 4270,GOST632-80Material: H40,J55,K55,N80-1,N80Q, R95,L80-1, L80-9Cr,L80-13Cr, C90, T95,C110, P110,Q1252. Thread type:

Casing: STC,LTC,BTC etc.

Tubing: NU, EU,XL,PH-4,PH-6,LTC,STC,BTC etc.3.Slotted type

(1)Straight Slots

Cut at a right angle to the liner,this slot type shows the same diameter from the inside to the outside of the wall Although straight slots are cheaper to produce, they are less effective in sand control compared to keystone slots.

(2)Keystone Slots

Cut at a slight angle, keystone slots, or tapered slots, are larger on the inside than on the outside, making sure that any particle entering the slot can pass through freely without clogging the slot.

Keystone slots are more expensive to than straight slots, but lower the risk of production losses due to plugged liner slots.(3)Slot Patterns

Whether you want your slotted pipe with a line, staggered, gang, overlapping, horizontal, or any other pattern, we can cut them all .Among all slot patterns, the following three are the most common.

APl Spec 5CT-Specification 5CT/SO 11960,GB/T19830-2011 Specification for Casing and Tubing,Eighth Edition,Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells.

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