FIELD: oil and gas industry.
SUBSTANCE: invention relates to devices for electrical uncoupling of drilling column and providing of wireless bidirectional communication of downhole telesystem with ground-based equipment. Electrical separator includes top and bottom sub, electrically isolated from each other, internal pipe and insulating layers. Additionally connection of internal pipe and pipe sub and also top and bottom sub are implemented by conical surfaces with minor angle of conicity by means of welding or dowel or rod.
EFFECT: hardening of electrical separator during torsion.
2 cl, 1 dwg
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