FIELD: oil and gas industry.
SUBSTANCE: filter device contains a non-metallic material having a compressed state and an expanded state. The non-metallic material contains a base polymer and one or more smart fillers dispersed in the polymer matrix of the non-metallic material, and a mechanical retainer that compresses the non-metallic material in a compressed state. One or more smart fillers react with the base polymer in the expanded state after exposure to wellbore conditions. The mechanical retainer is a degradable polymeric wrapping tape.
EFFECT: improved reliability of the filtering device due to its ability to withstand high temperatures and pressures.
16 cl, 26 dwg
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