在对多层分层注水情况下的油水井流入动态、水平管流、垂直管流、嘴流、泵举升油气水流动研究的基础上，根据节点分析原理，建立了多层分层注水开发、不同注水方式下的注采系统节点分析方法，并进行了实例研究。结果表明：利用该方法可以研究注采井间、层间的相互作用和影响，以确定最佳油水井的工作制度。将此法推广，可适用于两层以上油藏。 Based on the research on the dynamic inflow of oil and water wells, horizontal pipe flow, vertical pipe flow, nozzle flow and pump lift of multi-layer stratified waterflooding, according to the node analysis principle, a multi-layer stratified waterflooding development , Different injection method of injection and production system node analysis method, and conducted case studies. The results show that this method can be used to study the interaction and influence between injection and production wells and between layers to determine the optimal working system for oil and water wells. The promotion of this law can be applied to more than two reservoir.