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China products Oil well drilling slotted liner/perforated casing pipe

The slotted liner is mainly used to the water and oil reservation layer without much sand.Its function is to prevent the rock bits dropping into the well bore.The working principle is allowing the certain size sand coming through the surface with crude oil but keeping the bigger size sand being stopper outside to form sand bridge,and thereby achieving the anti-sand purpose.This type of product is commonly used to sand rock and carbonate reservoir,and especially useable for horizontal wells.

Sorts:API casing;

Length:<=15m(each);

Outside diameter:50~200mm;

Slot width: (0.10~4)mm±0.03mm;

Slot Number:as per customer’s requirement;

Slot shapes:straight in line pattern,staggered pattern,spiral pattern;

Slot space:as per customer’s requirement;

Slotted casings with apertures of 0.2~6mm are widey used to sands prevention of oil and wells.

Slotted liner technical specification

Packaging Details
first into water proof paper, then into wooden box or container
Delivery Time
Shipped in 20 days after payment


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