DOLOMITE AS AN ALTERNATIVE WEIGHTING AGENT

DOLOMITE AS AN ALTERNATIVE WEIGHTING AGENT IN
DRILLING FLUIDS

Uses & Benefit :
- Addition of barite and dolomite increase the density of the drilling fluids. Thus, both materials may be used as weighting agents in drilling fluids.
- Addition of dolomite to mud slurry, prior to aging, tends to increase its plastic viscosity.
- Slurry with barite mixture seems to exhibit higher plastic viscosity compared to slurry with dolomite mixture.
- The amount of filtrate loss is a function of dolomite content in the slurry. Large amount of dolomite content gives the lowest filtrate volume. This is due to lower porosity of the mixture.
- Viscosity of drilling fluid is a function of the rotational speed during mixing.Higher speed gives higher viscosity values.