Laboratory Experiment No. 8
To prepare a mud with desire density using unknown sample
1. Use 500 CC of the unknown sample and mix it for 5 minutes.
2. Measure the density of unknown sample using mud balance.
3. Calculate the amount of clay in grams using following
9.2= me +
m1 + m2
V1 + V2
4. Where, density (p) in gr/cc, mass (m) in gr and volume (V) in CC.
The first component is the unknown mud sample and second
component is clay.
6. Using mud balance measure mud density in ppg.
7. Measure plastic viscosity and apparent viscosity. Record 600
and 300 rpm readings.
8. Clean and return all equipment to their respective place.
1. Plot plastic viscosity (cp) for each sample using "Column Chart".
2. Plot apparent viscosity (cp) for each sample using "Column
3. Plot Yield point (lb/100 ft2) for each sample using "Column
Compute the volume in bbl and density in ppg of mud composed
of 20 Ibm of QuikGel , 45 Ibm of barite and 1 bbl of fresh
use above equations
Data Sheets: Density Adjusting
Density Adjusting - Materials
Group 1: Final Density: 10 ppg , Using Zeogle
Group 2: Final Density: 10 ppg , Using Aquagel
Group 3: Final Density: 10 ppg , Using Barite
Group 4: Final Density: ppg , Using Quikgel
9.2 x + 1.044 X 500
8.33 X + 500
X= 52.175 9 Quikge)
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This experiment investigates the preparation of a mud with desire density using unknown sample.
The main theory of this experiment is based on mixing an unknown sample with some other known components and additives such as water, Barite, Aquagel, Quickgel and Zeogel to achieve a value for density of the mud that engineer would ultimately design for the drilling operation. The equation that is used to relate the mud density to mass...