Multilayer Well Screen/ Multilayer-Packing Screens

1. Another name: Pipe base screen

2. Screen jacket: Johnson type screen

3. Base pipe: Perforated pipe

4. Connection type/Thread Style: STC, LTC, BTC threaded

5. Connection: STC (short threads and coupling)-8 threads per inch

6. Unit Length: R1, R2, R3

7. Application: Water well

8. Supply Ability: 6800 meters per month

9. Delivery port: Xin’gang or Qingdao port

10. Delivery time: 30 days after receiving the advance payment

11. Package: Bubble bag, wooden pieces wrapping the Johnson screens

Multilayer well screen pipes are used for oil and water exploiting.

Characteristics:

~ They consist of two screens or multilayer screen

~ Perforated pipe inside, with perforations wrapped by the outside Johnson type screen

~ The screen jacket and base pipe are welded together with a length of coupling.

~ The base pipe can be made of seamless pipe or welded pipe, and more often, casing pipes.

~ ID of Johnson type screen equals OD of the perforated pipe.

~ Unit length is R1(4.88-7.62m)/R2(7.62-10.36m)/R3(10.36-14.63m), cheaper than fixed length.