| abstract |
The invention discloses a multifunctional emulsion type thickener for fracturing and a preparation method thereof. The thickener of the present invention comprises the following components by weight: 35-55% of modified polyacrylamide, 0.5-1% of solid demulsification aid, 1-2% of suspending agent, 1-2% The dispersant, 40 ~ 60% organic solvent. The preparation method of the thickener of the present invention is to add the above components in a certain order, and stir for 1 to 2 hours at a speed of 100 to 200 r/min and a temperature of 50 to 60° C. until the mixture is uniform. The emulsion-type thickener for fracturing of the invention has multiple functions of high-efficiency viscosifying, demulsification and drainage assistance, and does not need to be supplemented with a demulsification and drainage assistance agent when used in oil field fracturing construction sites, the process is relatively simple, and the cost is relatively low . |