FIELD: oil and gas industry.
SUBSTANCE: well strainer includes a perforated frame, a strainer jacket in the form of independent sections with winding, which are made from non-magnetic material, packing elements in the form of support rods, and connection elements. Annular constant magnets being the strainer centralisers are installed on the perforated frame at some distance from each other. Internal layer of winding is formed with coils of non-magnetic capronic cord, which are located at some distance from each other. External layer of winding is formed with coils of non-magnetic capronic cord, which are located tightly to each other, or synthetic fabric mesh. Connection elements are made in the form of upper and lower adapters. Upper adapter is made as left-right one. In addition, the strainer is equipped with a sediment basin connected to a lower adapter and a flushing valve located in lower part of the strainer.
EFFECT: improving filtration quality of mechanical impurities and preventing plugging of filter elements.
5 cl, 1 dwg
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