top of page




- Slotted by laser.

- plasma and saw.

- High ID/OD ratio.

- High Mechanical Strength.

- Open Area: 1% - 6%.

- Width: 0.15mm.

- Available for straight slot and keystone slot.

Annual production 300,000m

Slotted Liner

Perforated Liner


Provides support to the reservoir formation without cementing

The size, grade and weight of the base-pìpe are according to API 5CT casing or tubing specification.

Hole diameter, hole pattern, hole quantify per foot, open area are based on clients requirement.

Every joint perforated by our company ir deburred internal and external as well as drift tested.

4-1/2" & 5-1/2" TP80SS 

Captura de pantalla 2019-05-06 a las 10.


1. OD: 2-3/8"-7"
2. Steel Grade: API 5CT J55, K55, N80, L80, P110, TP110H 
3. Length: R1, R2, R3 
4. Slot Width: 0.15mm-4.0mm Tolerance:±0.03mm 
5.Slot Length: according to the clients" request 
6.Application: Sand-control completion of horizontal well, side well drilling, branch well, and gravel pack well completion. 
7.Application history: It has been widely applied in Shengli Oilfield, Zhongyuan Oilfield, Daqing Oilfield, Xinjiang Oilfield and Kazakhstan Oilfield.

Precise Punched – Slot Screen


Premium Mesh Screen

Shroud is used to protect filtration layer from external impact and guide the fluid direction to avoid direct erosion to it.  

Guide layer is to separate the two filtration layer and guide the fluid evenly to overall filtration layers.  

Filtration layer is key part:

Internal support layer is to support filtration layer and distribute evenly.

bottom of page