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Slotted Casing

1. Type: Slotted Pipes, Slotted liner, Premium Screen······
2. Application: Oil industry
3. OD: 60.3-508mm, WT: Less than 16mm
4. Sloth Width: 0.15 - 10mm (±0.03mm)
5. Slots Shape: Straight slots, trapezoid slots, holes, or other shapes
6. Types Of Slots: straight in line pattern, staggered pattern, spiral pattern, etc.
Availability:


What is slotted pipe

The slotted pipe is widely used for oil filters and other oil industry parts. Because it can filter out 99% of the sand, decrease 80% of oil well heavy repair. which greatly reduces the maintenance rate of the tube, and also improves the tube’s strength, integrality, and stability of keeping off the sand. The slotted pipe uses a variety of methods to cut many longitudinal or spiral slots of certain specifications in the line or staggered pattern. This product is made using special thin blade cutting and laser cutting. Meanwhile, the laser incision can make very small cuts with a smooth surface and high precision. The cross-section of the slot is available in rectangle, trapezoid(trapezoid angle of 3-8°), and other special shapes. It can guarantee a permeability of 0.5%-10%. The slot is with high precision, good edge verticality, trimming smooth without glitches, etc.



Size chart of slotted pipe

API Casing

ID
mm

Length
m

Slot Length
mm

Slot
No.No./m





Slot width
mm





Slot Tolerance





Valid Filter Area
cm/m





Max. Strength
KN











Spec
mm



Thickness
mm



Per Weight
kg/m












60.32

5

6.84

50.3

3




80











200

0.3











±50











48

512.54

73.02

5.5

9.15

62

240

57.6

688.55

88.9

6.5

13.22

75.9

280

67.2

995.1

101.6

6.5

15.22

88.6

300

72

1151.2

114.3

7

18.47

100.3

10







320

76.8

1400.4

127

7.52

22.13

112

340

81.6

1673.8

139.7


7.72

25.11

124.3

360

86.4

1900.2

9.17

29.48

121.4

360

86.4

2232.4

168.3

8.94

35.09

150.4

400

96

2672.95

177.8


8.05

33.68

161.7

440

105.6

2559.2

9.19

38.19

159.4

440

105.6

2940.7



Manufacturing process of slotted pipe

products_11



Standard of slotted pipe

API Spec 5CT, GB/T 19830



Application of slotted pipe

  • Where well productivity is small and economics cannot support the use of screens

  • Ideal for sand control for low fines and clay reservoirs

  • Excellent sand control choice for thermal heavy oil &bitumen reservoirs

  • Suitable for high CO2/H2S, SAGD, CSS, and CBM


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  0086-0731-8873-9521                                             

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