The invention discloses a
shale oil development injection-production
system and method. According to the
shale oil development injection-production
system and method, injection wells containing fracturing fracture nets are arranged in a
shale oil reservoir, supercritical water is injected into the shale oil reservoir through a supercritical water injection
system, and the supercritical water has high diffusivity and can overcome large capillary resistance; the supercritical water enters pore
throat channels where a conventional water drive cannot enter, thus the swept volume is enlarged, the supercritical water is used for dissolving mineral components in the reservoir and conducting mild transformation on the reservoir, so that the pore
throat channels are expanded, favorable conditions are created for flowing of shale oil, and the high reaction activity of the supercritical water is utilized, so that the shale
oil can be converted from an immature state or a low mature state to a mature state in a short time, and long-chain molecules can also be converted into short-chain molecules, so that the quality and the flowability of the shale oil are improved; and
pollution caused by shale oil in the ground refining process can be avoided or reduced, the
natural environment is protected, and carbon emission is reduced.