摘要:
油藏岩芯的含油、含气、含水饱和度数据是开发油田进行分析与计算的重要资料。由于岩芯中的水对微波能量传输产生极大的衰减效应,而岩芯中的其他成分(砂岩、油、气体等)对微波信号衰减较小。根据这一原理,本文论述了微波衰减法测定岩芯多相饱和度仪器的工作原理。该仪器利用微波衰减测试系统首先确定岩芯中油、气、水混合状态下的水的含量,然后利用岩芯的其他参数完成含油、含气、含水多相饱和度的测定与显示。该仪器体积小,结构简单,适用于圆柱状砂岩岩芯多相饱和度的快速测定。测量误差小于3.0％。
Abstract:
The three-phase saturations of oil, gas and water system in cores are importam data for analyses and calculations of oil-field. According to the principle that microwave energy through a core is strongly absorbed by water content, while oil, gas and sandstone are relatively transparent, the microwave instrument for determining multi-phase saturations in cores with oil, gas and water is introduced. The attenuated signals proportional to water content are promptly processed, calculated and displayed by a signal processing unit. Results of measurements are displayed in digits in terms of percentage. The instrument is featured by its small size, simple structure and low cost. It has been used for measuring mufti-phase saturations of cylindrical cores with oil, gas and water. The measuring error is within土3.0%.
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