低渗透油田注水开发的生产特征及影响因素

Production Characteristics and Influencing Factors of Water Injection Development in Low Permeability Oil Fields

针对低渗透油田的注水开发问题,首先对低渗透油田注水开发过程中的生产特征及注水开发的影响因素进行深入研究,提出低渗透油田注水开发的技术对策,为提高油田的生产效率和生产量奠定基础。研究表明:对于低渗透油田而言,在注水开发的过程中会呈现出非达西流、方向性以及产能低等三大特征,注水开发主要受孔隙特征、附加渗流阻力以及渗透率变化等的影响,因此,油田企业需要从减小不易流动带、扩大易流动半径两方面入手,采取多种有效措施,提高低渗透油田的产量。

In view of the problem of water injection development in low-permeability oil fields,this study firstly conducted an indepth analysis of the production characteristics in the process of water injection development in low-permeability oil fields,conducted in-depth research on the influencing factors of water injection development,and proposed technical countermeasures for water injection development in low-permeability oil fields To lay the foundation for improving the production efficiency and production of oil fields.Research shows that for low-permeability oil fields,non-Darcy flow,directivity,and low productivity will be present in the process of water injection development.Water injection development is mainly affected by pore characteristics,additional seepage resistance,and permeability changes.Due to the influence of major factors,oilfield companies need to take measures to reduce the difficult-to-flow zone and expand the easy-to-flow radius,and take various effective measures to increase the output of low-permeability oilfields.