Base pipe:Casing and tubing
Slot style:Straight Slots,Keystone Slots,Slot Patterns,Line (Straight) Pattern,Single-Slot Staggered Pattern,Gang Pattern (Multiple Staggered Pattern)
Slot shape:Slotted or custom
Standards and Technical Conditions for Supply:API Spec 5CT – Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells
Dimension:Casing：OD: 114.3-508mm WT: 5.21-16.13mmTubing：OD 48.26-114.3mm WT 3.18-16mm
Grade:Casing：JSS, KSS, N80-1,N80-Q, L80-1, L80-9Cr,L80-13Cr,C95, P110,Q125;Tubing:JSS, N80-1,N80-Q, LS0-1, L80-9Cr,L80-1,C90, T95, C95, P110 .
Slotted pipe are used for oil and gas wells. Steel casing pipes and tubing are applied to furnishing and installing cased tunnels, where they indicate to pass other utilities or obstructions without open excavation. Steel casing pipes and tube have smooth wall and a minimum yield strength of 35,000 psi. Corrosion-proofing water-based paint is applied on the outside pipe surface to protect against atmospheric corrosion during transportation and storage.
API Std.Casing | ID mm
| Length m
| Slot Length mm
| Slot No./m
| Slot Width
| Slot Tolerance
| Valid Filter Area cm2/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 | 3 | 80 | 240 | 0.3 | ±50 | 57.6 | 688.55 |
88.9 | 6.5 | 13.22 | 75.9 | 3 | 80 | 280 | 0.3 | ±50 | 67.2 | 995.1 |
101.6 | 6.5 | 15.22 | 88.6 | 3 | 80 | 300 | 0.3 | ±50 | 72 | 1151.2 |
114.3 | 7 | 18.47 | 100.3 | 10 | 80 | 320 | 0.3 | ±50 | 76.8 | 1400.4 |
127 | 7.52 | 22.13 | 112 | 10 | 80 | 340 | 0.3 | ±50 | 81.6 | 1673.8 |
139.7 | 7.72 | 25.11 | 124.3 | 10 | 80 | 360 | 0.3 | ±50 | 86.4 | 1900.2 |
139.7 | 9.17 | 29.48 | 121.4 | 10 | 80 | 0.3 | 0.3 | ±50 | 86.4 | 2232.4 |
168.3 | 8.94 | 35.09 | 150.4 | 10 | 80 | 400 | 0.3 | ±50 | 96 | 2672.95 |
177.8 | 8.05 | 33.68 | 161.7 | 10 | 80 | 440 | 0.3 | ±50 | 105.6 | 2559.2 |
177.8 | 9.19 | 38.19 | 159.4 | 10 | 80 | 440 | 0.3 | ±50 | 105.6 | 2940.7 |
The narrowest of the slot can be up to 0.10mm
The carbon steel thickness of the cutting can be 20mm
The stainless steel thickness of the cutting can be 10mm
API Spec 5CT – Specification 5CT/ISO 11960, Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells