High-temperature-resistant and high-salt-resistant heat stabilizer for polymer used for oil flooding, and preparation method and application thereof
A heat stabilizer and polymer technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of human health hazards, poor temperature and salt resistance, slow preparation speed, etc., and achieve the effect of saving costs
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Embodiment 1
[0021] Accurately weigh raw materials (kg): calcium peroxide 4, ammonium chloride 25, hydrogen peroxide 2.5 and deionized water 950.
[0022] Preparation :
[0023] (a) Add calcium peroxide to deionized water at 15°C and stir evenly at 50 rpm to prepare aqueous solution A;
[0024] (b) Add ammonium chloride to solution A at 16°C and stir evenly at 120 rpm to obtain solution B;
[0025] (c) Add hydrogen peroxide to solution B at 18°C and stir for 25 minutes at a stirring speed of 420 rpm to obtain the product.
Embodiment 2
[0027] Accurately weigh raw materials (kg): calcium peroxide 3, ammonium chloride 20, hydrogen peroxide 2 and deionized water 920.
[0028] Preparation :
[0029] (a) Add calcium peroxide to deionized water at 16°C and stir evenly at 100 rpm to prepare aqueous solution A;
[0030] (b) Add ammonium chloride to solution A at 15°C and stir evenly at 100 rpm to obtain solution B;
[0031] (c) Add hydrogen peroxide to solution B at 16°C and stir for 20 minutes at a stirring speed of 300 rpm to obtain the product.
Embodiment 3
[0033] Accurately weigh raw materials (kg): calcium peroxide 5, ammonium chloride 23, hydrogen peroxide 2.3 and deionized water 900.
[0034] Preparation :
[0035] (a) Add calcium peroxide to deionized water at 20°C and stir evenly at 60 rpm to prepare aqueous solution A;
[0036] (b) Weigh ammonium chloride at 20°C and add it to solution A, and stir evenly at 110 rpm to obtain solution B;
[0037] (c) Add hydrogen peroxide to solution B at 15°C and stir for 23 minutes at a stirring speed of 350 rpm to obtain the product.
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