注水开发油田储采比的分析方法

油气田的储采比定义为，某年的剩余可采储量与当年产量之比。它是油气田开发分析的重要指标，不但能直接反映油田的开发程序，而且与油田的稳产形势密切相关。本文对于注水开发的油田，利用油藏工程方法，得到了确定稳产阶段和递减阶段储采比的关系式，并提出了判断储采比变化特征的方法。

Analysis Method of Reserves-Production Ratio for Water-Flooding Oilfield.

Reserves production ratio(RPR)of oil and gas fields is defined as the ratio of remaining recoverable reserves to annual oil production at the same year.Not only is it important factor of the development in oil and gas fields,but also it is closely related to stable production situation in the oilfield.For water flooding development oilfield,this paper proposes the relational expressions which can determine RPR at the stable production stage and decline production stage,along with to determine changing features by reservoir engineering methods.