Give reasons why drilling mud is used in drilling?

Question

Give reasons why drilling mud is used in drilling

Answer 1

when the bit is cutting, it gets really hot, the mud helps to keep the cutting edge of the bit cool. the hotter the bit, the less effective it gets at cutting. 2) when digging into the bowels of the earth you need the dirt to be cleared away, most of that dirt is solid, it gets washed up by the mud and carried up to the surface.

Answer 2

it is used to cool the bit, to keep the bit clean, and to carry the cuttings up to the surface.

Answer 3

The drilling mud is a mixture of clay, usually Bentonite, and water used primarily in Oil, Gas, and Water-drilling operations to carry rock cuttings to the surface and also to lubricate and cool the drilling bit. It's a 'Heavy' fluid that is circulated 'Down Hole' and back to the surface where the rock cuttings are separated and the mud re-circulated..

Chemicals are added to the mud to compensate for the different densities of material encountered in the formation being drilled and to increase the weight of the column of liquid in the bore hole.

The hydrostatic pressure of the column of mud also helps in preventing the collapse of unstable rock strata into the hole and the inflow of water from water-bearing strata that may be present.

This hydrostatic pressure will also help to contain the formation fluid pressure preventing a 'Blow-out', when a 'Strike' is made.

Answer 4

To give the hydrostatic pressure, to cool the drill bit and string, to lift out the drill cuttings which are generated during drilling, to prevent formation, to prevent blowout and so on...