Drilling
Mist Drilling
![Mist Drilling](/wp-content/uploads/2022/06/Mist-Drilling-780x470.webp)
Assessment
1. Under what type of conditions is mist drilling more applicable?
A .No water inflow
B .Modest amounts of water inflow ✔
C .Significant amounts of water inflow
2. Which one is the continuous phase in mist drilling?
A .Liquid
B .Gaseous ✔
3. Mist droplets are less dense than cuttings and are usually __ in size.
A .smaller ✔
B .larger
C .equal
4. Which of the following is typically not a part of the mist generation process?
A .Water
B .Carbon dioxide ✔
C .Surfactant
D .Corrosion inhibitor
5. Mist drilling requires around _ of the concentration of foamer that would be needed for foam drilling.
A .one-tenth
B .one-fifth ✔
C .one-half
6. In mist drilling, the risk of downhole fires is reduced significantly.
A .True ✔
B .False