中文摘要：

探讨污水回注井的注水规律,为优化注水提供依据。通过对Hall方程的推导,建立起污水回注井累计注水量与累计（注水压差×注水时间）的线性关系。结果表明川中地区16口污水回注井符合该线性关系。运用该关系能刻画污水回注井的注水规律,求解地层参数,定量评价压裂酸化增注措施的效果。

英文摘要：

This paper discusses the regular pattern of re-injection wells and provides the foundation for optimizing water injection.The paper derivates ＂Hall equation＂ and establishes the linear relationship between water volume and cumulative（pressure difference multiplied by injection time）.The result shows that ＂Hall equation＂ can be used to simulate 16 water injection wells in the Chuanzhong gas field.The relationship can describe the law of sewage water wells,solve formation parameters,and quantitatively evaluate the effectiveness of the intensified injection measures.