Patent ID: 8881800

Claim:
An installation for the in-situ extraction of a substance comprising hydrocarbons from an underground reservoir, the installation comprising: a production pipeline leading out of the reservoir, through which the hydrocarbons are extracted; and a means for induction heating assigned to the production pipeline for heating of the production pipeline environment, comprising: an electrical high-power generator outside of a capping and deposit, an electrical forward and return conductor, and a plurality of induction lines which are connected to the forward and return conductor, wherein the forward and return conductor are guided essentially vertically in the capping to a depth of the deposit and in comparison with a linear extent of the plurality of induction lines include a small lateral distance between them of maximally 10 m, and wherein the plurality of inductor lines run horizontally in the reservoir and include a predefined distance between the plurality of inductor lines which vary in the horizontal direction depending on geological conditions in the reservoir, wherein a first section is formed from an oscillator to the reservoir, a second section in the reservoir is formed wherein the plurality of inductor lines run horizontally and generally along side each other within the reservoir and as far as a salt injected region, and a third section comprising the salt-injected region within the reservoir is formed in an end region, wherein a different structure of the conductor is selected in each case in the individual sections, wherein in the first section, the forward and return conductor is a stranded or coaxial design, in the second section, individual insulated conductors are used for the plurality of inductor lines, and in the third section, non-insulated conductor ends are provided forming a plurality of electrodes in the salt-injected region.