A heat exchange circuit for a geothermal plant comprising a well excavated in the rock, a casing arranged inside the well, integral with it and comprising at least a first perforated section extending along a first portion of the well and at least a second perforated section extending along a second portion of the well, the perforated sections allowing the exit and the entry of a flow of geothermal fluid contained in an aquifer, an internal duct, located inside the casing in which a heat transfer fluid flows, wherein the well, the casing and the internal duct being arranged as a substantially closed ring, except for at least one surface interruption, at least one heat-exchange section at the bottom of the well between the first portion and the second portion of the well within which the geothermal fluid transfers heat to the heat transfer fluid.

A heat exchange circuit for a geothermal plant comprising a well excavated in the rock, a casing arranged inside the well, integral with it and comprising at least a first perforated section extending along a first portion of the well and at least a second perforated section extending along a second portion of the well, the perforated sections allowing the exit and the entry of a flow of geothermal fluid contained in an aquifer, an internal duct, located inside the casing in which a heat transfer fluid flows, wherein the well, the casing and the internal duct being arranged as a substantially closed ring, except for at least one surface interruption, at least one heat-exchange section at the bottom of the well between the first portion and the second portion of the well within which the geothermal fluid transfers heat to the heat transfer fluid.

A geothermal power system is disclosed. The system comprises a downhole turbine configured to operate within a wellbore and a downhole electrical generator configured to be driven by the turbine. A channel facilitates flow of a working fluid through the turbine. The channel has a feed portion allowing the working fluid to flow in a direction away from the surface and a return portion allowing the working fluid to flow in a direction towards the surface. A surface structure is in fluid communication with the feed portion and the return portion to circulate the working fluid through the channel.

A geothermal power system is disclosed. The system comprises a downhole turbine configured to operate within a wellbore and a downhole electrical generator configured to be driven by the turbine. A channel facilitates flow of a working fluid through the turbine. The channel has a feed portion allowing the working fluid to flow in a direction away from the surface and a return portion allowing the working fluid to flow in a direction towards the surface. A surface structure is in fluid communication with the feed portion and the return portion to circulate the working fluid through the channel.

A drilling system includes a wellbore extending from a surface into a geothermal reservoir. The geothermal reservoir may be an underground magma reservoir. The wellbore is configured to heat a heat transfer fluid via heat transfer with the underground magma reservoir. A steam-powered motor uses the heat transfer fluid that is heated by the geothermal system to rotate a drill bit to drill a borehole.

A drilling system includes a wellbore extending from a surface into a geothermal reservoir. The geothermal reservoir may be an underground magma reservoir. The wellbore is configured to heat a heat transfer fluid via heat transfer with the underground magma reservoir. A steam-powered motor uses the heat transfer fluid that is heated by the geothermal system to rotate a drill bit to drill a borehole.