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1987年8月，在Leduc混相小规模试验区成功地进行了井间试验，确定水驱残余油饱和度，虽然这个试验的原理在1971年就被Cooke提出来了，但是由于缺乏适合的示踪剂与解释技术，从而妨碍了这一研究在油田上的应用性试验。最近放射性同位素测试技术的进步、使人们不可能再去选择费用很高的常规技术来进行这方面的试验。文献中报导的井间残余油饱和度试验方法。首先成功地在Ldeuc试验区进行了试验。同时在小规模实验区上采用了两种常规的方法单独测量残余油饱和度，证明了井间示踪剂方法是正确的。这两个常规的方法是单井示踪剂试验和海绵取芯分析。几种方法的结果非常一致，增加了井间示踪剂试验确定残余油饱和度方法的可靠性。本文主要对这三个技术的方案设计与解释进行叙述和对比。
In August 1987, a well-bore test was successfully conducted in the Leduc mixed-phase pilot area to determine the water-flooding residual oil saturation. Although the principle of this experiment was proposed by Cooke in 1971, due to a lack of suitable tracing Agent and interpretation technology, thus hindering the application of this research in the field test. Recent advances in radioisotope testing technology make it impossible to choose the more expensive conventional techniques to conduct experiments in this area. Well test of residual oil saturation reported in the literature. The first successful test in the Ldeuc test area. At the same time, two conventional methods were used to measure the residual oil saturation separately in a small-scale experimental area, which proved that the cross-well tracer method is correct. The two conventional methods are single well tracer test and sponge coring analysis. The results of several methods are very consistent, increasing the reliability of the cross-well tracer experiment to determine the residual oil saturation. This article mainly narrates and compares the scheme design and explanation of these three technologies.