Nano liquid destroying agent for fracturing fluid and preparation method thereof
A fracturing fluid and breaking agent technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of polymer molecular chain not being completely broken, fracturing fluid breaking glue, etc., to achieve safe storage and use Improve performance, reduce corrosion, good stability
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[0035] Example 1
[0036] S1. 1.6 g of cationic Gemini 8-3-8 [C 8 H 17 (CH 3 ) 2 N(CH 2 ) 3 N(CH 3 ) 2 C 8 H 17 Br 2 )] was put into the reaction kettle, heated to 80-90 ℃ and fully heated and melted, the heating process was controlled to have a heating rate of 3 ℃ / min, the stirring was started and 10g of water was slowly put in, the stirring speed was 120r / min, and the temperature was controlled at 60 ℃ / min. -80℃, stop heating after adding water, put 4g of nonionic emulsifier TX-30 into the reactor, establish internal circulation through the emulsification pump, and simultaneously turn on the refrigeration to control the temperature of the liquid in the reactor at 30±2℃;
[0037] S2. Add auxiliary additives 1g OP-30 and 0.4g OS-15 to 15g of the aqueous solution containing 5g of ammonium persulfate, stir evenly, and slowly drip into the solution obtained from S1 under mechanical stirring, and the dripping time is controlled at 50-70min After the completion of the sh...
Example Embodiment
[0038] Example 2
[0039] 2.5 g of cationic Gemini type 12-4-12 [C 12 H 25 (CH 3 ) 2 N(CH 2 ) 4 N(CH 3 )2 C 12 H 25 Br 2 )] was put into the reaction kettle, heated to 80-90 ℃ and fully heated and melted, the temperature rising rate was controlled to be 2 ℃ / min, the stirring was started and 30 g of water was slowly put in, the stirring speed was 160 r / min, and the temperature was controlled at 60 ℃ / min. -80℃, stop heating after adding water, put 4g of nonionic emulsifier EL-60 into the reaction kettle, establish internal circulation through the emulsification pump, and simultaneously turn on the refrigeration to control the temperature of the liquid in the reaction kettle at 30±2℃;
[0040] S2. Add auxiliary additive 1.3g OS-15 to 10g of the aqueous solution containing 2.5g of ammonium persulfate and stir evenly, and slowly drop into the solution obtained from S1 under mechanical stirring, the dropping time is controlled at 50-70min, and continue to cut The reaction ...
Example Embodiment
[0041] Example 3
[0042] S1. 5g cationic Gemini 16-5-16 [C 16 H 33 (CH 3 ) 2 N(CH 2 ) 5 N(CH 3 ) 2 C 16 H 33 Br 2 )] was put into the reaction kettle, heated to 80-90 ℃ and fully heated and melted, the temperature rising rate was controlled to be 3 ℃ / min, the stirring was started and 25.3 g of water was slowly put in, the stirring speed was 140 r / min, and the temperature was controlled at 60-80 ℃, stop heating after adding water, put 8g of nonionic emulsifier APG1214 into the reactor, establish internal circulation through the emulsification pump, and simultaneously turn on the refrigeration to control the temperature of the liquid in the reactor at 30 ± 2 ℃;
[0043] S2. Add auxiliary additives 1.5g T20 and 0.2g O-10 to the aqueous solution containing 4g ammonium persulfate in 10g, stir evenly, and slowly drip into the solution obtained from S1 under mechanical stirring, and the dripping time is controlled at 50-70min After the completion of the shearing and stirr...
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