Wire Wrapped Screen
Wire wrapped screen is one of the most commonly used sand screens around the world. It consists of a base pipe and a filter jacket or only a filter jacket. It adopts world advanced all-weld technology to ensure that wrap wire welded to ribs at every contact point, which provides a robust solid filter for use in both cased and openhole environments. It creates a continuous slot opening and allows water or oil entering well freely in ample quantifies while keeping most of the sand and gravel out of the well.
Structure
- Base pipe: The base pipe is a perforated pipe that conforms to API standards, which is designed to optimize flow while retaining strength.
- Filter jacket: It has longitudinal ribs that support the wrap wire and serve as a drainage layer, ensuring an open flow path to the base pipe perforations. The keystone-shaped wire decreases the risk of screen plugging associated with particles lodged between wires. The wire wrap is manufactured separately from the base pipe, and the wire wrapped jacket is then placed over the base pipe and welded to the base pipe at both ends.
Advantages
- All welded structure, high mechanical strength
- Superior corrosion and erosion resistance
- Large open flow area
- Self-cleaning function lowering the risk of plugging
- High flow rate with low pressure drop
Specification
- Materials: stainless steel 304, 304L, 316, 316L, or upon request.
- Wire width: 0.090″ (2.286 mm)
- Slot depth: 0100″ (2.54 mm)
- Slot opening: 0.175 mm to 1.0 mm in increments of 0.10 mm with accuracy of 0.05 mm. Slot size is designed based on formation grain sieve analysis results to ensure optimal sand control performance.
- Length: up to 6 meters.
- End connection: thread connection, flange connection and baffle ring connection
| Base Pipe OD in. (mm) | Base Pipe Holes per Foot | Base Pipe Hole Size in. (mm) | Open Area of Base Pipe Holes in.2/ft (cm2/m) | Number of Ribs | Filter Jacket | Screen Radial Open Area in.2/ft (cm2/m) | |
|---|---|---|---|---|---|---|---|
| Maximum Assembly OD in. (mm) | Jacket Weight lb/ft (kg/m) | ||||||
| 2.38 (60.45) | 54 | 0.375 (9.530) | 5.96 (126.20) | 15 | 2.86 (72.60) | 2.30 (3.42) | 12.60 (267.01) |
| 2.88 (73.15) | 66 | 0.375 (9.530) | 7.29 (154.30) | 17 | 3.36 (85.30) | 2.70 (4.02) | 14.80 (313.70) |
| 3.50 (88.90) | 78 | 0.375 (9.530) | 8.61 (182.20) | 21 | 3.99 (101.30) | 3.20 (4.76) | 17.60 (372.51) |
| 4.00 (101.60) | 90 | 0.375 (9.530) | 9.94 (210.40) | 23 | 4.49 (114.00) | 3.60 (5.36) | 19.80 (419.19) |
| 4.50 (114.30) | 102 | 0.375 (9.530) | 11.27 (238.50) | 25 | 5.00 (127.00) | 4.00 (5.95) | 22.10 (466.81) |
| 5.00 (127.00) | 114 | 0.375 (9.530) | 12.59 (266.50) | 27 | 5.51 (139.90) | 4.40 (6.55) | 24.30 (514.42) |
| 5.50 (139.70) | 126 | 0.375 (9.530) | 13.92 (294.60) | 29 | 6.01 (152.70) | 4.80 (7.14) | 26.50 (561.10) |
| 6.63 (168.40) | 138 | 0.375 (9.530) | 15.24 (322.60) | 31 | 7.15 (181.60) | 5.60 (8.33) | 31.50 (667.54) |
| 7.00 (177.80) | 150 | 0.375 (9.530) | 16.57 (350.70) | 37 | 7.53 (191.30) | 6.10 (9.08) | 33.20 (703.01) |
| Technical Notes:Screen radial open area is based upon 12-gauge screen. | |||||||
Precise Micropore Composite Screen
Precise Micropore Composite Screen is designed to filter a high percentage of sands and is used in high velocity wells. It adopts an all metal design with a base pipe, a filter jacket and an outer protective shroud to provide better performance than a wire wrapped screen in unconsolidated formations. It is especially true when it comes to filtering fine particles in formations with more poorly sorted sands. The unique construction of this screen optimizes inflow area and filtration efficiency to provide superior sand control completion performance.
Structure
- Base pipe: The base pipe is a perforated pipe that conforms to API standards, which is designed to optimize flow while retaining strength.
- Filter jacket: The filter jacket is the core of the sand control mechanism and is engineered to meet the filter requirements. It usually consists of an inner support/drainage layer, multiple layers of filter mesh and an outer support/drainage layer. All these layers are made of metal mesh in forms of plain, twill or dutch woven.
- The inner support/drainage layer: It is placed between the base pipe and multiple layers of filter mesh, which provides even distribution of flow between the base pipe and multiple layers of filter mesh and has the function to support multiple layers of filter mesh.
- Multiple layers of filter mesh: It is designed to meet the requirements of sand control. A combination of various filter materials can be used to meet different filter requirements to the greatest extent. Its structure can be changeable according to the actual conditions of stratum.
- The outer support/drainage layer: It is placed between the filter mesh and the outer protective shroud, which is specially designed for enhancing drainage under the final layer.
- Outer protective shroud: The outer protective shroud can be either a perforated pipe or a bridge-type pipe, which protects the filter mesh during deployment and provides support during reverse pressurization.
Advantages
- High accuracy of filtration, high reliability in sand control
- High permeability, larger flow area and high production rate
- Even flow of production fluid across the whole screen
- Small outer diameter, light weight
- Acid and alkaline resistance and high temperature resistance
- Excellent plugging resistance and backwash capability
Specification
- Materials: stainless steel 304, 304L, 316, 316L or upon request.
- End connection: thread connection, flange connection and baffle ring connection
| Base Pipe OD in. (mm) | Base Pipe Holes per Foot | Base Pipe Hole Size in. (mm) | Open Area of Base Pipe Holes in.2/ft (cm2/m) | Filter Jacket | Screen Radial Open Area in.2/ft (cm2/m) | |
|---|---|---|---|---|---|---|
| Maximum Assembly OD in. (mm) | Jacket Weight lb/ft (kg/m) | |||||
| 1.05 (26.67) | 54 | 5/16 (7.94) | 4.10 (86.80) | 1.69 (42.93) | 1.20 (1.79) | 14.70 (310.17) |
| 1.32 (33.53) | 66 | 5/16 (7.94) | 5.10 (107.87) | 1.95 (49.53) | 1.40 (2.08) | 16.90 (357.89) |
| 1.66 (42.16) | 78 | 5/16 (7.94) | 6.00 (127.02) | 2.30 (58.42) | 1.70 (2.53) | 19.90 (422.12) |
| 1.90 (48.26) | 42 | 3/8 (9.53) | 4.60 (97.38) | 2.47 (62.74) | 1.90 (2.83) | 21.40 (453.32) |
| 2.06 (52.32) | 42 | 3/8 (9.53) | 4.60 (97.38) | 2.72 (69.09) | 2.20 (3.27) | 23.60 (499.21) |
| 2.38 (60.45) | 54 | 3/8 (9.53) | 6.00 (127.02) | 3.03 (76.96) | 2.50 (3.72) | 26.30 (556.10) |
| 2.88 (73.15) | 66 | 3/8 (9.53) | 7.30 (154.54) | 3.53 (89.66) | 3.00 (4.46) | 30.60 (647.87) |
| 3.50 (88.90) | 78 | 3/8 (9.53) | 8.60 (182.06) | 4.15 (105.41) | 3.40 (5.06) | 36.00 (761.66) |
| 4.00 (101.60) | 90 | 3/8 (9.53) | 9.90 (209.58) | 4.65 (118.11) | 3.80 (5.66) | 40.30 (853.42) |
| 4.50 (114.30) | 102 | 3/8 (9.53) | 11.30 (239.22) | 5.14 (130.56) | 4.30 (6.40) | 44.60 (943.35) |
| 5.00 (127.00) | 114 | 3/8 (9.53) | 12.60 (266.74) | 5.65 (143.51) | 4.60 (6.85) | 49.00 (1036.95) |
| 5.50 (139.70) | 126 | 3/8 (9.53) | 13.90 (294.26) | 6.16 (156.46) | 5.10 (7.59) | 53.40 (1130.56) |
| 6.63 (168.40) | 138 | 3/8 (9.53) | 15.30 (323.90) | 7.31 (185.67) | 6.00 (8.93) | 63.40 (1341.62) |
| 7.00 (177.80) | 150 | 3/8 (9.53) | 16.60 (351.42) | 7.69 (195.33) | 6.30 (9.38) | 66.70 (1411.36) |
| 7.63 (193.80) | 162 | 3/8 (9.53) | 17.90 (378.94) | 8.33 (211.58) | 6.90 (10.27) | 72.20 (1528.82) |
| 8.63 (219.20) | 186 | 3/8 (9.53) | 20.50 (433.99) | 9.35 (237.49) | 7.80 (11.61) | 81.10 (1716.02) |
| 9.63 (244.60) | 210 | 3/8 (9.53) | 23.20 (491.14) | 10.37 (263.40) | 8.70 (12.95) | 89.90 (1903.23) |
| Technical Notes:Screen radial open area is based upon shroud not including filter mesh. | ||||||