【摘要】 储层饱和度仪 ( RST)因不受井斜和流体矿化度的影响 ,在测量水平井和低矿化度区块油井的持水率方面很有优势。通过对利用 RST测井资料求持水率的常规方法“反演法”进行分析研究 ,提出了改进的方法“四点法”。研究结果表明 :这两种方法的解释基础相同 ,与反演法相比 ,四点法不依赖于仪器灵敏度 ,因此比反演法简单且减少了工作量 ,大大提高了工作效率更多还原

【Abstract】 A reservoir saturation tool (RST) has obvious advantages in measuring water holdup in horizontal wells and low salinity areas because it is not influenced by well deviation and fluid salinity An improved method "four point method" is suggested through studying the conventional method, that is "inverse method", of which RST well logging data are used to derive the holdup The result of study demonstrates that the interpretation basis of both methods is the same, compared with the inverse method, the four point method is not dependent on the tool sensitivity , which is simpler than the inverse method with the reduction of work capacity and the highest working efficiency更多还原