Multilayer gravel packing water well screen
Multilayer water well screens pipes are used for oil and water exploiting.
Characteristics of Water Well Screen:
~ 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.
Multilayer screen
l Material: 201 304 304L 316 316L Q235
l Another name: Pipe base screen
l Screen jacket: Johnson type screen
l Base pipe: Perforated pipe
l Connection type: STC, LTC,BTC threaded
Bubble bag, wooden pieces wrapped the Johnson screens