Mobile offshore carbon capture and sequestration systems and methods using jack-up structure

A system comprising:

• a) a first mobile offshore installation comprising
• i) a mobile jack-up structure comprising a floatable hull and three or more legs configured to be raised and lowered vertically and engaged with or landed on a seafloor in up to 500 feet water depth, and
• ii) the mobile jack-up structure having a CO2 removal system integrated therein or thereon comprising one or more CO2 removal units installed or mounted on or in the floatable hull, one or more CO2 dehydration units, and one or more CO2 compressors, the one or more CO2 removal units configured to remove CO2 from atmospheric air through Direct Air Capture (DAC) and form captured CO2;
• b) one or more transfer conduits fluidly connecting the one or more CO2 compressors with a second offshore installation, the first mobile offshore installation configured to be connected to the second offshore installation by a structural bridge to support the one or more CO2 transfer conduits;
• c) the one or more CO2 compressors configured to transfer the captured CO2 through the one or more transfer conduits to the second offshore installation;
• d) the second offshore installation comprising one or more CO2 injection wells configured to route the captured CO2 into a subsurface storage formation selected from a depleted oil/gas reservoir, a saline aquifer, or other rock strata.