Neodirect-emul Stab

Purpose

Neodirect-emul Stab is used in oil and gas industry as an additional emulsifier in the production of mineralized and unsaturated direct emulsion systems used for flushing oil and gas wells. Surfactants contained in the product are able to effectively destroy the micelles of the main emulsifier and increase its hydrophilicity. This leads to an increase in the concentration of adsorption-active molecules at the interface and additional stabilization of the emulsion.
Advantages
The use of a direct emulsion as a drilling mud with the addition of Neodirect-emul Stab allows:
• to prevent dispersion of clay rocks and improve well cleaning from drilled rock, due to optimal rheological and structural-mechanical parameters of the drilling fluid;
• to increase stability of argillite-clay rocks and reduce the risk of cavings in the process of deepening the well, including during long-term downtime;
• reduce the filtration losses, increase the stability of the drilling fluid over time;
• increase the lubricating properties of the drilling fluid.

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Physical and chemical properties

Property

Standard

Appearance

Powder of white to grey color

pH value of 5% aqueous solution, units of pH, min

9,0

Recommendations to application

It is recommended to increase the concentration of the co-emulsifier with an increase in the degree of mineralization of the aqueous phase. When the concentration of potassium chloride in the aqueous phase of the emulsion is equal to 3-5% w/w, the optimal concentration of Neodirect-emul Stab is 0.5-1.5% w/w. In case of incerasing the concentration of potassium chloride to 24% w/w (saturated solution), it is recommended to increase the concentration of Neodirect-emul Stab to 7-10% w/w. The maximum effective concentration is estimated based on the results of preliminary tests, taking into account the actual conditions: the composition, the oil phase used, etc.