Octyl trimethyl ammonium chloride strong oil well emulsion

Abstract

The invention provides octyl trimethyl ammonium chloride strong oil well emulsion. The octyl trimethyl ammonium chloride strong oil well emulsion is characterized by consisting of the following components in parts by weight: 15-25 parts of triethanolamine lauryl sulfate, 15-25 parts of coal pitch, 5-10 parts of petroleum sulfonate, 5-10 parts of calcium rosin, 15-25 parts of octyl trimethylammonium chloride, 10-20 parts of calcium chloride, 30-50 parts of carclazyte, 2-5 parts of citric acid, 2-5 parts of tartaric acid, 4-8 parts of glycerin monostearate, 1-2 parts of fumaric acid, 1-2 parts of distilled monoglyceride, 1-2 parts of fatty acid methyl ester sulfonate, 1-2 parts of benzyl naphthalene sulfonate and 230-290 parts of water, all materials are mixed and are stirred at 75-100 DEG C to react for 2-3 hours to obtain the product; and the octyl trimethyl ammonium chloride strong oil well emulsion has the advantages of being low in cost, environmentally friendly, convenient to use and good in effect and raw materials are easily available.

Description

technical field [0001] The invention belongs to an oilfield chemical, in particular to an oilfield additive. Background technique [0002] Oilfield additives include degreasing agent, water clearing agent, reverse phase demulsifier, sewage clarifier, demulsifier, calcium magnesium iron ion remover. In the process of tertiary oil recovery, with the widespread promotion of polymer flooding and polymer surface flooding stimulation techniques in oilfields, the accompanying problem of produced water treatment has become increasingly acute. Traditional oily sewage degreasers are generally inorganic polymer Aluminum flocculant, this kind of flocculant has a good treatment effect on general oily sewage, but it cannot meet the expected treatment requirements on sewage containing polymer. The use of inorganic polyaluminum will have three disadvantages: (1) The introduction of high-priced inorganic ions increases the corrosion of equipment in the water system. In severe cases, it will...

AI Technical Summary

Problems solved by technology

Due to the introduction of high-valent cations, the conductivity of the system is increased, which can easily cause the breakdown of the two high-voltage plates of the electric dehydrator, and the high-voltage electric field cannot be established, which affects the normal operation of production.

(3) For sewage containing polymers, polymerized aluminum flocculants react with polymers to form viscous large flocs, which cause serious blockage in sewage treatment filter devices, pollute filter materials, and reduce production efficiency

[0003] After searching for Chinese published patents, no solution identical to this patent application was found