PIPE WITH RADIO FREQUENCY IDENTIFICATION TAG Russian patent published in 2024 - IPC F16L1/11 G06K1/12 

FIELD: radio engineering.

SUBSTANCE: invention is intended for passive wireless radio frequency identification (RFID) of pipe products in oil production, oil refining and other industries, including tubing and casing pipes, drill strings, centralizers, couplings and other pipe products. In a tube with an RFID tag, the tag is a surface acoustic wave device operating at a frequency of 2.4-2.483 GHz and contains an acoustoelectronic identification chip, the output contacts of which are connected to a round metal plate by soldering. The plate has a flat spiral slot antenna and two holes for fixing the ends of the said antenna. A heat-resistant compound, stable at a temperature of 300-350 °C, is applied to the threaded surface of the tag, to the surface of the tag corresponding to the wall of the blind hole of the pipe, to the surface of the acoustoelectronic identification chip and output contacts, to the surface of the flat spiral slot antenna. The tag is configured to generate a signal containing information about a unique identification code, unchangeable and non-rewriteable, determined by the internal topology of the tag.

EFFECT: increase in the service life of a pipe with a radio frequency identification tag at high pressure and temperature differences by using a passive RFID tag and ensuring protection against high pressures and temperatures in the well.

1 cl, 4 dwg