水淹层测井评测方法在鄯善油田二次开发中的应用

Application of Research on Logging Identification Methods in Water-flooded Zone

油层被水淹后,油层的自然电位、电阻率、声波特征、核物理性质都会发生变化。同时不同的注水量,注水矿化度、地层性质都会使储层测井参数发生变化。本文对水淹机理实验研究,并结合测井静态和动态资料,寻找反映水淹层敏感的测井曲线,建立不同水淹程度的标准,定性,定量识别划分油水层和水淹层,从而找到适合鄯善油田的水淹层识别方法,并在油田二次开发中得到较好的应用。

In water-- flooded zone, self-- potential, resistivity, acoustic characteristics and nuclear physics properties will make change. And different water injection rate, water sa- linity and formation electrical property will make different reservoir logging parameters. This paper studies water--flooded mechanism experiments with static and dynamic logging data. In this way we will find logging curves that are sensitive to water--flooded zone in or- der to establish different standards of different flooded levels. Meanwhile we can make oil and water layer division by qualitative and quantitative identification and it also works for water--flooded zone. Thus we can find methods for identification of water--flooded layer in Shanshan oil deposit. And it has got better application in secondary development of oil field.