Improving EOR performance in unconventional oil reservoirs

摘要

Advanced completion technology prevents excessive production of gas after breakthrough occurs. Shale oil resources have become a key contributor to oil production in North America. Due to the micro-permeability of these reservoirs and rapid depletion of pore pressure proximal to the fractures and wellbore, the oil production for most wells declines sharply after a short period of production and the hydrocarbon recovery from these wells is low, typically 3% to 12% of original oil in place.