▎ 摘　　要

NOVELTY - The method involves establishing an oil reservoir rock model, a shale oil molecular model and a water molecular model. The shale oil reservoir rock model is provided with a graphene model, a kaolinite model and a quartz model. An oil-water-rock wettability molecular model is established by using block modeling process. Molecular dynamics simulation process is performed to the oil-water-rock wettability molecular model. A simulation result of the oil-water-rock wettability molecular model is obtained. Water molecule in the oil-water-rock wettability molecular model is extracted from the simulation result. A baseline segment of a contact angle simulation curve is selected along with change of simulation time and unchanged longitudinal coordinate. Contact angle corresponding to the baseline segment is taken as shale oil reservoir contact angle. USE - Shale oil reservoir contact angle calculating method. ADVANTAGE - The method enables calculating parameter needed by calculating the contact angle so as to improve calculation precision of the contact angle. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a shale oil reservoir contact angle calculating system. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram illustrating a shale oil reservoir contact angle calculating method. (Drawing includes non-English language text).