Another term for deflocculant, a thinning agent used to reduce viscosity or prevent flocculation; incorrectly called a “dispersant.” Most deflocculants are low-molecular weight anionic polymers that neutralize positive charges on clay edges. Examples include polyphosphates, lignosulfonates, quebracho and various water-soluble synthetic polymers. Thinners are specially designed to modify the relationship between the viscosity and percentage of solids in drilling fluids. We provide thinners for most water-, oil-, and synthetic-base drilling fluids and improves rheology in the ENVIROTHERM NT chrome-free water-base drilling fluid system.
n water-based muds, as incorporation of drilled solids progressively influences the mud rheology, it may be of significant benefit to reduce the viscosity of your drilling fluid using a thinning agent (deflocculant). These highly effective products avoid the need for mud dilution which also requires replenishment of mud chemicals and increases mud volume and disposal costs. In addition, once present, thinners will maintain a dispersed drilling fluid rheology, thus protecting against mud gelling or flocculation due to contamination and /or high temperature.
This in turn will help achieve a thin filter-cake at the wellbore and will avoid excess fluid loss and associated issues. Thinners are commercial chemical used as a thinner and dispersant in freshwater drilling fluids and as an aid in water well development. Thinners maintain rheological properties amid hostile environments. Thinning agents help reduce viscosity or prevent flocculation, and deflocculants are typically low-molecular weight anionic polymers that neutralize positive charges.
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