Abstract: An installation for the geological sequestration of carbon dioxide can include a structure and a device for injecting a flow of carbon dioxide into a geological reservoir. The injection device can include an injection pipe and a device for extracting a flow of water from the geological reservoir. The extraction device can include an extraction pipe. The installation further can include a heat exchanger that can be connected to the injection and extraction pipes. Operating the installation can include injecting the flow of carbon dioxide into the reservoir, simultaneously extracting the flow of water from the reservoir, and bringing the flows of carbon dioxide and of water into thermal contact in the exchanger.

Abstract: A method for operating an installation for the geological sequestration of carbon dioxide, comprising: a structure; a device for injecting a flow of carbon dioxide into a geological reservoir, the injection device comprising an injection pipe; and a device for extracting a flow of water from the geological reservoir, the extraction device comprising an extraction pipe. The installation further comprises a heat exchanger, which is connected to the injection and extraction pipes; and the method comprises the following steps: injecting the flow of carbon dioxide into the reservoir, simultaneously extracting the flow of water from the reservoir; and bringing the flows of carbon dioxide and of water into thermal contact in the exchanger.

Abstract: A method for the regulation of an installation for the geological sequestration of carbon dioxide includes a structure; a CO2 storage compartment, received in said structure; a device for injecting CO2 into a geological reservoir; an energy production device; and an energy storage device. The energy production device supplies a power that varies over time, between low, intermediate, and high states. When the power supplied is in the low state, the injection device is powered by the energy storage device; and when said power supplied is in the high state, the injection device is powered by the power generation device, to ensure a continuous injection of CO2 into the geological reservoir.

Abstract: A method for the regulation of an installation for the geological sequestration of carbon dioxide includes a structure; a CO2 storage compartment, received in said structure; a device for injecting CO2 into a geological reservoir; an energy production device; and an energy storage device. The energy production device supplies a power that varies over time, between low, intermediate, and high states. When the power supplied is in the low state, the injection device is powered by the energy storage device; and when said power supplied is in the high state, the injection device is powered by the power generation device, to ensure a continuous injection of CO2 into the geological reservoir.