Device and method for the recovery, in particular in-situ recovery, of a carbonaceous substance from subterranean formations

摘要

A device is provided for extracting a hydrocarbon-containing substance from a reservoir. Thermal energy can be applied to the reservoir in order to reduce the viscosity of the substance. The device includes at least one conductor loop for inductively supplying electric current, to provide electric and/or electromagnetic heating, and a fluid conducting device for transporting and introducing a solvent fluid into the reservoir, to further reduce the viscosity of the substance.

主权项

1. A device for extracting a hydrocarbon-containing substance from a reservoir, wherein thermal energy can be applied to the reservoir in order to reduce the viscosity of the substance, the device comprising:
at least one conductor loop for inductively supplying electric current, to provide electric and/or electromagnetic heating, and a fluid conducting tube for transporting and introducing a solvent fluid into the reservoir, to further reduce the viscosity of the substance, and a pressurizing device, wherein the fluid conducting tube is perforated and is arranged in the reservoir such that when the solvent fluid is supplied the solvent fluid moves out of the fluid conducting tube into the reservoir only by way of a perforation, wherein the perforation has holes which are embodied in terms of shape and/or size and/or distribution in such a way that when the solvent fluid is supplied under a predetermined pressure applied by the pressurizing device, the solvent fluid is discharged in a distributed manner into the reservoir over a length of the fluid conducting tube through the perforation into an environment of the fluid conducting tube, wherein the applied predetermined pressure is dependent on a depth of the reservoir and is higher than a hydrostatic pressure corresponding to said depth of the reservoir, wherein the perforations are embodied in such a way that the same amount of fluid is discharged in each section over the entire length of the fluid conducting tube; and wherein the fluid conducting tube is internal to the conductor, wherein the perforation is embodied in such a way that an electrical insulation of holes of the perforation is provided with respect to the conductor.