——我国低渗透油藏63.2亿吨,尚有50%未动用。而已动用的低渗透资源,由于技术水平制约,平均采收率仅为21.4%。如果能提高1个百分点的采收率,就相当于发现一个地质储量高达6.4亿吨的大油田。提高油气采收率(EOR)工艺是石油业永恒的主题。从利用天然能量自喷生产开始,世界石油业经过100多年的发展,目前已形成化学驱、气驱、热采三大三次采油技 - China’s low-permeability reservoirs 6.32 billion tons, yet 50% unscathed. However, the low-permeability resources that have been used have only 21.4% average recovery due to technical constraints. An increase of 1 percentage point in oil recovery would amount to the discovery of a large oil field with a geological reserve of up to 640 million tons. EOR is the eternal theme of the oil industry. From the use of natural energy production since the beginning of spraying, the world petroleum industry after 100 years of development, has now formed a chemical flooding, gas flooding, thermal recovery of the three major oil production technology