دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: See bail line.

n: Used to scoop up cuttings from the well in cable drilling.

n: See equalizer.

Static condition of the length of tubing in the well, where buoyed tube weight (well fluid sensitive) equals the well pressure acting against the cross-sectional area of the tube. The balance point does not include any frictional forces exerted by frictio

n: A drilling method that make fluid column pressure in the well balance with formation pressure. It can improve ROP obviously, protect reservoir, and decrease or avert mud eroding and lossing.

n: A kind of invert emulsion mud that the chemical potential of drilling fluid is equal to the chemical potential of water in the drilled formation. The salinit in the water phase is usually equal to salinit in the shale water. It can prevent shale permeatin