Drilling Fluid Functions
Drilling fluid functions describe tasks which the drilling fluid is capable of
performing, although some may not be essential on every well. Removing cuttings
from the well and controlling formation pressures are of primary importance on every
well. Though the order of importance is determined by well conditions and current
operations, the most common drilling fluid functions are:
11. Remove cuttings from the well.
12. Control formation pressures.
13. Suspend and release cuttings.
14. Seal permeable formations.
15. Maintain wellbore stability.
16. Minimize reservoir damage.
17. Cool, lubricate, and support the bit and drilling assembly.
18. Transmit hydraulic energy to tools and bit.
19. Ensure adequate formation evaluation.
10. Control corrosion.
11. Facilitate cementing and completion.
12. Minimize impact on the environment.