电阻率测试技术在注水井中的应用

Application of Resistivity Testing Technique in Water Injection Well

电阻率测试技术是一种地球物理探测方法。在石油天然气勘探中,用于解决油气藏边界探测、井周围油气藏探测、剩余油分布探测等问题。在采油工程中,该项技术用于解决水力压裂裂缝几何参数探测、酸化压裂裂缝几何参数探测、注水推进方向和波及范围探测、注水井调剖堵水效果探测等问题。对于注水井来说,了解和掌握注入水的运动方向和推进速度、注水前缘位置,了解和掌握不同油层或同一油层的不同部位的水淹特征,是合理部署注采井网、研究剩余油的分布规律、挖掘剩余油、提高最终采收率、提高注水开发水平的基本要求。因而,应用地球物理新方法和新技术,探测注水驱油前缘分布参数,意义重大。

Resistivity testing technique is gas exploration,it is used to detect oil and remaining oil.In production engineering,it is a kind of geophysical detection method.In the course of oil and gas reservoir boundary,reservoir around wells and distribution of used to detect geometric parameters of hydraulic and acidic frac- turing,advancing direction and sweep scope of injected water,effect of profile control and water plugging in water injection wells.For water injection wells,it is the basic requirement to know about the movement direc- tion and advancing speed of injected water as well as the location of water injection front.It is necessary to make clear the water flooding characteristics in different locations of the same reservoir or in different reservoirs for rationally deploying injection-production patterns,researching the distribution law of remaining oil, tapping potential for remaining oil,enhancing the ultimate recovery factor and improving levels of water injection development. Therefore,it is of great significance to detect the distribution of water injection and oil displacement front by