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  1. Screen Pipe & Slotted Liner
  2. Screen Pipe & Slotted Liner

Screen Pipe & Slotted Liner

We manufacturer sand control screens for Oil & Gas industry. which include wire-wrapped screen, precision punched screen, precise micropore composite screen, wire wrapped & bridge composed pre-packed screens, and slotted liners.

  1. Detailed information

Applicable as filters for oil, gas and water wells as well as related water treatment industries.

Wire-wrapped Screen

1. Wire-wrapped Screen Characteristics

  • 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.

2. Applications

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

3. Filter Principle

 Wire-wrapped screen provide effective sand control for nominal gravel packing application. The slot is designed to stop the gravel and the sand from the earth is then stopped by the holes formed by the gravel.

4. Specifications

API Base pipe

Screen ID mm

Screen OD mm

Holes OD mm

Holes No./ft

Rod No. Piece

Screen Weight kg/m

Size

Weight lb/ft

2 3/8”

4.6

50.6

78.0

9.5

48

24

11.3

2 7/8”

6.4

62.0

91.0

9.5

60

26

14.5

3 1/2”

9.2

76.0

107.0

9.5

72

28

19.0

4”

9.5

90.1

119.5

12.7

84

32

20.5

4 1/2”

11.6

101.6

132.5

12.7

96

34

25.0

5”

15

112.0

145.0

12.7

108

38

29.0

 5 1/2”

17

124.3

158.0

12.7

120

44

32.5

6 5/8”

24

150.4

186.0

12.7

132

48

43.5

7”

26

159.4

196.0

12.7

144

54

47.0

                                                                 Notes:
                                                                 1) All data come from PW90×PW90 design
                                                                 2) Wire and rod material: AISI304, AISI 304L,AISI 316, AISL316L
                                                                 3) Base-pipe: API J55, N80, P110, C90, 13Cr, or more
                                                                 4) Slot width: 0.1-2.0mm
                                                                 5) Wire Wrapped Screens length (m): 1.8, 3.0, 6.0, 9.0, 12.0, or more

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                                                                               Wedge Wire                                                                                               House Design Wire

Slotted liner

1.Key Features Include:

  • Slots are made on base pipes with large ID/OD ratio.

  •  High mechanical strength, high flexibility to allow adequate bending, which makes it applicable in complicated well conditions, and can be used in open-hole horizontal well completion for sand control. 

  • Low cost in manufacture and downhole installations. 

  • Open hole area: 2%-6%.

  • Base pipe: J55, N80, P110, etc.

2.Applications
  Wells with medium or coarse sands

3.Specifications

    API Base pipe


 Screen ID mm


 Screen OD mm


Slot width  mm


Slot length mm

Size

Weight lb/ft

2 3/8”

4.6

50.6

60.3

0.15 ~ 2.0

80

2 7/8”

6.4

62.0

73.0

0.15 ~ 2.0

80

3 1/2”

9.2

76.0

88.9

0.15 ~ 2.0

80

4”

9.5

90.1

101.6

0.15 ~ 2.0

80

4 1/2”

11.6

101.6

114.3

0.15 ~ 2.0

80

5”

15

112.0

127.0

0.15 ~ 2.0

80

 5 1/2”

17

124.3

139.7

0.15 ~ 2.0

80

6 5/8”

24

150.4

168.3

0.15 ~ 2.0

80

7”

26

159.4

177.8

0.15 ~ 2.0

80

 Note: The slot length and slot pattern can be adjusted according to the special requirements of the user.

4.Basic Design

4.1 Slot Type 

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STRAIGHT MILL SLOTTING

This was the first type of slot manufactured. It has straight sides, equal width throughout the wall of the 
casing, and is more easily clogged by sand grains from the formation, than the Keystone slot. 
As more and more slots became plugged with sand, a decreasing quantity of oil is obtained until finally 
a fraction of the oil available is produced. The most successful down hole slot cleaning method to date 
is hydro-washing.




KEYSTONE OR UNDERCUT SLOTTING

The surface width of this type of slotting is smaller than internal width so as to reduce the chance of blocking.

Normally the keystone inclined angle is 6°.


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4.2  Slot Pattern

Normally it has parallel pattern and staggered pattern. When the opening areas are the same, staggered pattern can avoid losses of strength.

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                                                                                                               Parallel Pattern                                             Staggered Pattern

PRECISE MICROPORE COMPOSITE SCREEN

1.  Product Characteristics

  • Multi-layer 316L stainless steel filter media has been adopted, with high reliability and anti-damaging ability in sand control.

  •  High permeability, larger area of flow and production rate is high. 

  • Small outer diameter, light weight, easy to push along the long horizontal section. 

  •  Anti- acid and alkaline, anti-high temperature, long life for use. 

  • Simple construction, easy for operation, it benefits to lower the construction expense, and raise the rate of success in construction.

  •  Premium Screen samples deformed to 75% and 40%of original diameter with virtually no increase in sand production.

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2.   Product Application
PRECISE MICROPORE COMPOSITE SCREEN is mainly suitable for barefoot completions especially for oriented well and horizontal well. 

The particularity of well opening of the horizontal well causes a low rate of success of the traditional gravel packing completion,and of a big risk. Meanwhile, the horizontal well is requested for higher output, the high permeability can be raised by use of Mesh screen, and reduce the rate of blockage, therefore increase the  production rate.

3.   PMC Screen Specifications

API Base pipe

Screen ID mm

Screen OD mm

Screen Weight kg/m

Size

Weight lb/ft

2 3/8”

4.6

50.6

76

11.6

2 7/8”

6.4

62.0

89

14.5

3 1/2”

9.2

76.0

108

19.3

4”

9.5

90.1

124

21.3

4 1/2”

11.6

101.6

136

24.2

5”

15

112.0

150

29.0

5 1/2”

17

124.3

162

33.8

6 5/8”

24

150.4

192

43.5

7”

26

159.4

202

48.3

PRECISION PUNCHED SCREEN

PRECISION PUNCHED SCREEN mainly consists of perforated base pipe, stainless steel filtration jacket with punched slots, and end rings.

1. Product Characteristic

  • Accurately controlled width: The width of the precise punched slot screen shall be accurately controlled within 0.20~1.00mm and the degree of accuracy is±0.05mm, which can be better match the sizes of different formationsand satisfy the requirements of down hole sand control.

  •  Excellnt anti-corrosion ability: PPS screen jacket is made of high quality stainless steel, and has good ability toresist corrosion from acid alkali and salt, and can meet the special requirements of the wells containing H2S,CO2, and high cl- . The slot will not get wider after long- term down hole service.

  •  Excellent body strength and anti-deformation ability:The PPS screen has excellent body strength and anti-deformation ability because of its structure. The filtration jacket is supported by the base pipe, and the strength of the perforated pipe is only 2-3% reduced compared with the API casing or tubing.  Even if there are partial deformation, the slot width will not get wider, and the sand control will be not lost.

  •  High density slot, low flow resistance: The flow resistance is lower because the open hole of the PPS screen is 2~3 times of the normal slotted screen, thus it is in favor of getting high oil and gas output.

  • Nicer technics,easy to high rate and large scale production.

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Specifications

                API Base pipe

                                  PPS screen

Size

Weight kg/m

OD mm

Weight kg/m

Filtration Accuracy

2 7/8”

9.54

82

10.9

150 ~ 800μm

3 1/2”

13.7

98

15.5

150 ~ 800μm

4”

14.2

110

16.3

150 ~ 800μm

4 1/2”

17.3

123

19.9

150 ~ 800μm

5”

22.4

136

25.8

150 ~ 800μm

5 1/2”

25.3

150

29.1

150 ~ 800μm

6 5/8”

35.8

178

41.2

150 ~ 800μm

7”

38.7

188

44.5

150 ~ 800μm

Base pipe length m

4.8~5.0

Jacket length 4m * 1 section

9.3~9.6

Jacket length 4m * 2 section

11.3~11.6

Jacket length 5m * 2 section

Note: The length of base pipe and filtration accuracy can be adjusted according to the special requirements of the user.

Perforated Pipe

Our company has two sets of special designed muiti-spinder drilling machine which has a capacity of more than 10000 meters per month. Rows Available with: any inch size or metric size such as 1"Center, 2"Center, 3"Center ,4"center or 6", or 25mm,50mm,75mm,100mm,150mm.

Drill Sizes Available: 1/4", 3/8", 1/2", 5/8", 3/4", and 1" .

Pipe sizes available: 2-3/8”-13-3/8”.

Pipe grade can deal: J55,K55,N80,L80,P110,13Cr.

Hole pattern: Non staggered,staggered,spiral staggered.

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