Drilling Industry Glossary
magnetometer
make a connection
make up
make up a joint
make up torque
make up water: chlorides
making a trip
making hole
making up a joint
marsh viscosity
MD
mean sea level (MSL)
mechanical jar
methylene blue
micro-annulus
migration
mixing mud
monkey board
mouse hole
mud
mud alkalinity
mud cake
mud ditch
mud engineer
mud line
mud magnet
mud pump
mud report
mud tanks
mud type
mud weight
Mud
The complex fluid circulates through the drillpipe, out through the "eyes" of the bit, and then returns to the surface through the annulus between the drillpipe and casing’s inner wall, or borehole wall. It has two purposes: (1) control hydrostatic pressure in the annulus to prevent inflow from the exposed formation or outflow into these formations; and (2) carry drill cuttings from the bottom of the hole to the surface.
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