- The limit value of drilling fluid density for avoidingthe borehole wall instability and the hydrostatic column pressure model were also determinedin this paper.
- When underbalanced drilling or drilling easy leaky zone by using aeration fluid,the determination of fluid density and downhole fluid column pressure is very important.
- During the drilling procedure, the mud filtrates continuously penetrate into the formation because of the unbalance between the mud column pressure in the borehole and formation pressure.
- A new correlation of packing column pressure drop
- column pressure gradient correction factor
- She angled her column of chitchat toward teenagers.