Refracturing well selection method for ultra-low permeability reservoir based on multi-parameter coupling

At present, with the continuous increase in development of ultra-low permeability reservoirs, fractures are prone to closure during initial fracturing operation, which will affect fracture conductivity a certain extent, and oil well production shows gradual decline trend, water content target is gradually increased. Therefore, order ensure better recovery rate depth reservoir, it necessary use re-fracturing reconstruction technology for some low-production Wells, so as improve fractured near restore actual productivity single well, conducive realizing stable reservoir.