Sinopec Petroleum Exploration&Production Research Institute Beijing 100083 China;
Sinopec Petroleum Exploration&Production Research Institute Beijing 100083 China;
Sinopec Petroleum Exploration&Production Research Institute Beijing 100083 China;
Sinopec Petroleum Exploration&Production Research Institute Beijing 100083 China;
Sinopec Petroleum Exploration&Production Research Institute Beijing 100083 China;
EnerTech-Drilling&Production Co. CNOOC Energy Technology&Services Limited Tianjin 300452 China;
shale oil; CO_(2); EOR; nuclear magnetic resonance; recovery degree; fracture;