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Thursday 5 August 2021

Preparation of Drilling Fluids

 Preparation of Drilling Fluids


Dispersion and hydration of Barite ( a mordant material) require an advanced system other than rotor/stator mixers. Diffusion of the bentonite and rheology transforms into water or brine for preparation of the water/oil emulsions. The following processes fulfill this transaction: 


  • Efficient incorporation and dispersion of powders into the water

  • Surrounding liquid with finest constituent parts of particles to expose the maximum surface area for gelling effect

  • Functional Shear Degree

  • The rapid in-tank movement 

  • Sufficient droplet size for a stable emulsion





Problems with basic equipment:

  • The particles collected using conventional mixers are not effectively broken.

  • During the gelling effect, conventional products are inefficient and are unable to reduce particle size.

  • Extra mix tanks are required to pre-hydrate bentonite in a minimum of 4 hours.


Drilling fluids include:

  • Bore cuttings of the surface

  • Cooling and Lubrication of the drill

  • Control of subsurface pressure




A Wahal Engineer high shear mixer/homogenizer can overcome each problem resulting in a stable water/oil emulsion. Also, it takes little time compared to conventional methods. The operation is as follows:


  1. The high-speed rotation of the rotor produces an efficient suction that collects the water and bentonite in the system which is subjected to high shear. 

  2. Milling action occurs between the rotor and stator, which breaks and ensures contact between the liquid and solid particles. 

  3. Fresh material is pushed into the system after the complete product is pushed out of the stator.

  4. A lump-free dispersion after the combination of deagglomeration and vigorous mixing produces further; thus, accelerating the hydration process.


Advantage of our product:

  • Fitting in the existing plant

  • Breaking of hard agglomerates

  • Powder dispersion



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