This is a simple example to demonstrate how to determine quantity of material required in a simple mixing system. Let’s learn from the example below.
The objective is to build mud which has a weight of 11.0 ppg with 1,000 bbl.
The mud recipe is shown below;
- 30 ppb bentonite
- 5 ppb CMC polymer
- 5 ppb caustic soda (NaOH)
- 25 ppb Na2CO3
- Weighting Material is barite.
The following are important data of water and chemical used for this calculation.
Base fluid = fresh water
Specific gravity of water = 1
Specific gravity of barite = 4.2
Specific gravity of bentonite = 2.4
Specific gravity of CMC polymer = 2.4
Fresh water weight = 8.34 ppg
NaOH and Na3CO3 have negligible volume because it is dissolvable.
What is quantity of material required to meet the mud specification?
What is the final volume? Continue reading