According to the previous post, you have learnt about Mixing Fluids of Different Densities with Pit Space Limitation. This post you will learn about how to mix different fluid densit withour limitation of mud pit space (Case#2: You don't have limitation of pit space). For this case, the calculation will be easier because you can directly input value of each variation into the equation to get answer.
First of all, let's review the formula for mixing fluid density.
(V1 x D1) + (V2 x D2) = VF x DF
Where;
V1 = volume of fluid 1 (bbl, gal, etc.)
D1 = density of fluid 1 (ppg,lb/ft3, etc.)
V2 = volume of fluid 2 (bbl, gal, etc.)
D2 = density of fluid 2 (ppg,lb/ft3, etc.)
VF = volume of final fluid mix
DF = density of final fluid mix
Let's read and understand this example so you will know how to use the formula.
Example 2: No limit is placed on volume:
Determine the volume of 10.0 ppg mud and 14.0 ppg mud required to build 300 bbl of
12.0 ppg mud:
You have following mud in you mud pit.
• 200 bbl of 10.0 ppg mud in pit A
• 300 bbl of 14.0 ppg mud in pitB
Determine the density and volume when the two following muds are mixed together:
Given:
• 200 bbl of 10.0 ppg mud in pit A
• 300 bbl of 14.0 ppg mud in pitB
Solution:
Apply formula of mixing different fluid density.
(V1 x D1) + (V2 x D2) = VF x DF
Where;
V1 = 200 bbl
D1 = 10.0 ppg
V2 = 300 bbl
D2 = 14.0 ppg
VF = V1+V2 =500 bbl
Formula: (V1 x D1) + (V2 x D2) = VF x DF
(200x 10.0) + (300 x 14.0) = 500 x DF
12.4 ppg = DF
You will have total fluid 500 bbl of 12.4 ppg.
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