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

Features:

1. A continuous slot opening which significantly increases the available open area, thus providing greater access to the water bearing zone.

2. Under the same condition, high open area can make the speed of groundwater’s entering into the screen much slower than any other filtration apparatus, which will avoid sand’s entering into screen because of high pressure, thus reduce the abrasion of the pump.

3. Our product have good character of anti-acid,anti-alkali and anti-corrosion,it can adapt to the oil well’s special demand.the crack won’t become bigger because of corrosion.it has good stability.

4. They have the features of easy backwashing, durable in use,safety and reliability as well as low comprehensive cost.

Packing

Generally speaking.the inside is packed by plastic membrane,the outside is packed by nonwoven fabrics,then we bundled them by steel strip.also we can pack them according to customers’demands.

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