摘要
在碳酸盐岩储层中对流体性质判别是一大难题。文中认真分析研究纵横波测井的原理及其在水层、气层的响应特征,综合考虑了孔隙度及岩性对纵横波速度比的影响,提高了纵横波速度比判别法的准确度,特别是对碳酸盐岩高孔储层、高阻水层、低阻气层进行了准确地流体性质判别。经试油验证,该方法切实可行。
It's very hard to distinguish the fluid property in carbonate reservoir. Analyzing the principle of P-S wave logging and its response properties in water and gas layers, considering the impacts of porosity and lithology on P-S wave velocity ratio, this study increases greatly an accuracy of distinguishing the ratio, especially accurately distinguishes the fluid property in high-porosity carbonate reservoir, high-resistance water layer and low-resistance gas layer. Validated by oil test, this method is quite feasible.
出处
《天然气勘探与开发》
2008年第3期30-32,共3页
Natural Gas Exploration and Development
关键词
碳酸盐岩
纵横波速度比
孔隙度
流体性质
carbonate rock, P-S wave velocity ratio, porosity, fluid property
