利用储层饱和度仪双探测器测井资料反演持油率

应用储层饱和度仪（RST）在水平或大斜度的生产井中进行测量,可以取得连续的油、气、水持率测量值。笔者探讨了RST测井求持油率的方法,在RST双探测器测井模型分析的基础上确定井筒持油率。在反演过程中,采用了随机数分析方法获取仪器的灵敏度系数,获得的灵敏度系数较为精确。结合其他测井资料,将所求的系数用于反演模型求取井筒持油率的计算中,通过计算值和实测值的对比及其相关系数分析,证明了该方法的可行性。

THE APPLICATION OF RESERVOIR SATURATION TOOL DUAL DETECTOR WELL LOGGING DATA TO INVERTING OIL HOLDUP

The application of Reservoir Saturation Tool(RST) well logging in horizontal production well or highly-deviated production well can help get continuous measured values of oil holdup,gas holdup and water holdup.The authors aim to probe into oil holdup acquisition methods through RST well logging,which can determine the well hole oil holdup based on model analysis of RST dual detector well logging.In the process of model inversion,the acquisition of sensitive coefficients for this tool is based on the random number analysis method,and thus more accurate sensitive coefficients are obtained.This process acquires well hole holdup by using model inversion on the basis of the combination of desired coefficient and other well logging data.A comparison of calculated values with measured values and an analysis of the errors of the results show that this method is feasible.