The slotted liner is mainly used to the water and oil reservation layerwithout much sand. It's function is prevent rock bits dropping into thewell bore. The working principle is allowing the certain size and comingthrough the surface with crude oil but keeping the bigger size sandbeing stopped outside to form sand bridge, and thereby achievement theanti-sand purpose. This type of product is commonly used to sand rockand carbonate reservoir, and especially useful for horizontal wells.
PI Std. Casing API | 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 | 3-12 | 10-200 | 200 | 0.25-15 | ±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 | 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 |