低渗透油藏的注水工艺技术研究

Study on water injection technology of low permeability reservoir

石油是促进生活质量不断提高、社会经济持续发展的重要战略性资源,被广泛应用于社会生活与工业生产中。现阶段,随着各行各业的蓬勃发展,市场对石油能源的需求与依赖日益加深。由于我国石油开采已经进行了一定的年限,很多油田已经进入中后期阶段,低渗透油藏特征明显,导致开采难度进一步加大,采出量减少。

petroleum is an important strategic resource to promote the continuous improvement of life quality and the sustainable development of social economy,which is widely used in social life and industrial production.At this stage,with the vigorous development of all walks of life,the demand and dependence of the market on petroleum energy are increasing.Due to the fact that China's oil production has been carried out for a certain period of time,many oilfields have entered the middle and late stage,and the characteristics of low-permeability reservoirs are obvious,which further increases the difficulty of production and reduces the production volume.Water injection is one of the important technologies in oilfield development.Through the application of different water injection technologies,it can well recover and improve the formation permeability,reduce the resistance of oil and gas flowing into the bottom of the well and improve the injection capacity of water injection well,which is one of the important production means to maintain stable and high production of the oilfield.