SECTION OF PIPE COLUMN WITH WIRES (VARIANTS) AND INDUCTIVE COMMUNICATION DEVICE FOR SAID SECTION Russian patent published in 2007 - IPC E21B47/12 

FIELD: drilling and operation of wells, possible use for transferring measurement data from positions in well shaft to the surface.

SUBSTANCE: pipe column section contains extended tubular body, having an axial aperture, threaded sleeve end and threaded nipple end. First circular coil is immovably mounted on sleeve end and partially enveloped by first layer with high conductivity and low magnetic penetrability, and second circular coil, immovably mounted on nipple end, partially enveloped by second layer with high conductivity and low magnetic penetrability. During connection of sleeve end of first section of pipes column to nipple end of second section of pipes column, first and second layers with high conductivity and low magnetic penetrability form at least a part of toroidal contour which surrounds the first circular coil of the first section of pipes column and the second circular coil of the second section of pipes column. Coil windings of first and second coils of section of pipes column with wires are electrically connected.

EFFECT: increased reliability of information transfer.

4 cl, 18 dwg