Abstract: The Daqing oil field is the first,in our country,to be developed by adopting internal water-flooding by separate zones in one well at the very beginning of the field's development.This paper points out that,the field with mufti-layered sandstones should be developed by zones separately in one well,on the basis of grouping the layers into several zones.Only through the continuous testing and adjustment by separate zones in one well during the development by water flooding,we can control effectively the field's development to achieve a high standard of development technique.

摘要： 多油层砂岩油田注水开发过程中,油水运动和分布是错综复杂的,影响着产油量的稳定.在划分开发层系的基础上进行分层开采,能够获得较长时期的高产稳产.分层开采指的是,以分层注水保持油层能量为基础,应用同井分层开采工艺,进行分层研究,分层调整,使各类油层逐步充分发挥作用的开采方法.大庆油田二十年来,通过分层开采的实践,取得了保持压力开采的显著效果.