Common Ways to Adjust Water-based Mud Density

Mar 12, 2014

READ: Water-based mud is a generic term of versatile circulating liquids satisfying different drilling requirements in exploration efforts. It is proper to apply solids control system against harmful solids and to get down nud density by input of additives or lower-density mud from identical system, etc.

Water-based mud is a generic term of versatile circulating liquids satisfying different drilling requirements in exploration efforts. It plays a leading role in actual oil drilling operations. In terms of composition, it is a multi-phase dispersed system including bentonite, additives, weighting materials, brine and drill cuttings. In terms of fluid media, it is a drilling fluids with water as continuous fluid media. Water -based mud extends to deep well drilling mud, dispersed drilling mud, calcified drilling mud, brine drilling mud, non-dispersed drilling mud and MMH drilling mud.

Ways to boost its density:

1. It is better to remove coarse solids and keep bentonite and solid content within designed limits first.

2. It is better to evenly inject weighting materials with weighting device along the cycle whose density is best kept between 0.01g/cm3 and 0.04 g/cm3(unless confronted with kick and spill).

3. It is better to improve mud’s lubricating property with proper amount of lubricant when high-density drilling mud are made denser.

4. After all, it is better to adjust mud properties within designed limits.

Adjustment of Water-based Mud Density:

1. Based on actual operations, it is proper to apply solids control system against harmful solids and to get down nud density by input of additives or lower-density mud from identical system, etc.

2. It is better to add weighting materials and proportional weighted fluids for boost of mud density. The weighting materials can be barite, iron ore, limestone powder, and so on.