测井资料在注水开发对套损影响分析中的应用

完井测井及部分套管井长源距测井等可以确定井周地层参数及地层参数的变化。文章针对注水开发对油田套管损坏影响问题,一方面研究了注水开发引起的井周地层参数变化、这种变化在测井曲线上的反应以及地层参数变化对套管受力(套管载荷)的影响;另一方面考察了在地层参数不变情况下油水井注入产出量对套管受力的影响,利用注入剖面测井确定的小层注入量可以确定相应层段的套管载荷并进行套损危险性分析,为油田采取措施预防套损提供一定的依据。

Application of well logging data for analyzing the impact of waterflood development on casing damage

Reservoir parameters can be determined by well completion data and some long spaced logging data in casing hole.In view of the impact of waterflood development on casing damage, studied are the changes of reservoir parameterscaused by waterflood development and how the changes affect log responses and casing stress. Meanwhile, analyzedis the impact of input and output of oil and injection well on casing stress when reservoir parameters are constant. Research shows that the injection rate of thin zones, which is provided by injection profile logging, can be used to determinethe casing load of corresponding intervals and analyze the dangers of casing damage.