Types Of Drilling Fluids (Mud) In Oil & Gas Industry
The principal factors governing the selection of type (or types) of drilling fluids (mud) to be used on a particular well are:

- The characteristics and properties of the formation to be drilled
- The quality and source of the water to be used in building the fluid
- The ecological and environmental considerations

Continuous-Phase Classification.

Drilling fluids are categorized according to their continuous phase so that there are:

- Water-based fluids
- Oil Based Drilling Mud
- Pneumatic (
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