![The sonic log parameters from an exploratory well in a reservoir are as follows](https://www.gkseries.com/blog/wp-content/uploads/2023/09/The-sonic-log-parameters-from-an-exploratory-well-in-a-reservoir-are-as-follows.jpg)
True resistivity (Rt) = 10 ohm-m Matrix transit time (โ๐ก๐๐) = 45 ยตs/ft Fluid transit time (โ๐ก๐๐) = 205 ยตs/ft
Formation water resistivity at reservoir temperature (Rw) = 0.1 ohm-m
The hydrocarbon saturation (in percentage) in the reservoir is__________(round off to 1 decimal place).
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-754.png)
Ans: 59-61
Using the given eq
![](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Screenshot-756.png)