Buoyancy factor is the factor that is used to compensate loss of weight due to immersion in drilling fluid and you can find the calculation from here http://www.drillingformulas.com/buoyancy-factor-calculation/.
We have created a simple table to help people determine the buoyancy factor quickly. Let’s take a look at the table. In Figure 1, it shows the main page and you can select the mud weight range from 4.0 ppg to 19.0 ppg.
Figure 1- Main Page BF Table
For instant, we choose 8.0 ppg and the table will show buoyancy from 8.0 – 8.9 ppg (Figure 2)
Figure 2 – Buoyancy Factor for 8 ppg Range
The table shows the buoyancy factor from mud weight range from 8.0 – 8.9 ppg. Additionally, the table demonstrates mud weight in kg/l. For example, if we select 8.5 ppg, the table will tell you the buoyancy factor of 0.8702 (Figure 3).
Figure 3 - 8.5 ppg and Buoyancy Factor
If you want to go back to the main page, you just simply click “Go Back To Main Page”.
Figure 4 - Go Back to Main Page BF Table
Download the Buoyancy Factor Table from this link => 
http://goo.gl/AIzMeS
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