FIELD: oil and gas industry.
SUBSTANCE: suggested umbilical cable has channels along the whole its length filled with working media of low density as well as functional components representing components of the umbilical cable required for insulation, strength and transmission of different media - liquids, gases, electric energy and data. At that a solid body, liquid, gas or their combination may be used as working media. Characteristic property of the umbilical cable consists in that the channels filled with working media are interconnected by their ends. At that the above working media have different density and divided by elastic pistons. Besides, the umbilical cable can contain additional dummy channels permanently filled with working medium of low density. The invention also suggests the method for delivery of a subsurface device to the well survey interval by the above umbilical cable.
EFFECT: reduction of forces resisting movement of the umbilical cable in a generally horizontal section of the well at points of the cable contact with the well walls, reduction of the cable wear and increase in its advanced length.
4 cl, 3 dwg
