PERFORATED WELL FILTER – FSTP TYPE (FSTP-K)
Well tube screens are installed in the productive bed of the well and are designed for removal of foreign substance from the well, preventing the bottom hole zone from pump breakage, carry-over of sand and other mechanical admixtures from oil and gas wells, and for decreasing wear of pump and compressor equipment and pipelines.
The climate modification type is NF (operation in regions with moderate and cold climate) according to GOST 15150.
- the operating medium temperature is unlimited. For filters with cut-off caps made of polyamide or D16T alloy in accordance with Specs 36.1144-001-85173937-2012, no more than 120° С;
- operating medium: fluid, gas condensate, oil and gas with mechanical admixtures.
DESIGNATION AND DESIGN TYPES
|Filter type designation||Specification||Designation of the design type|
|FS||PS||wire-wrapped slotted design based on perforated casing string||with cut-off sealing caps(K)||with gravel fill (GN)|
|TP||perforated pipe-shaped based on well casing|
|SL||mesh type, based on perforated well casing with perforated sheet housing|
|SP||mesh type, based on perforated well casing with expanded sheet housing|
|SL1||mesh type, based on perforated well casing with perforated sheet housing wound spirally|
|SPS||mesh type, based on perforated well casing with spirally-wound expanded sheet housing|