After one year, injection pressure dropped and apparent waterinjectivity index rose, and interbedded injectivity behavior was improved in the injection wells.
试验一年以后，水井注水压力下降，视吸水指数上升，层间吸水状况得到改善；
2
Injectivity profile is commonly determined with radioisotope tracer test in water-flood oilfield.
对于注水开发油田，通常使用放射性同位素测井测量注水井的吸水剖面。
3
The influence of controlling specifications of water quality on well injectivity has been studied theoretically.