High-temperature-resisting and high-salt-resisting thermal stabilizer of polymer for oil field as well as preparation method and application of high-temperature-resisting and high-salt-resisting thermal stabilizer
A heat stabilizer and polymer technology, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of human health hazards, slow preparation speed, and inability to effectively reduce the concentration of polymer systems, and achieve saving cost effect
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Embodiment 1
[0021] Accurately weigh the raw materials (kg): calcium peroxide 4.2, ammonium sulfate 23, peracetic acid 2.8 and deionized water 960.
[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) Weigh ammonium sulfate into solution A at 16°C, stir evenly at 120 rpm to obtain solution B;
[0025] (C) Add peracetic acid 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 the raw materials (kg): calcium peroxide 3, ammonium sulfate 20, peracetic acid 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) Weigh ammonium sulfate into solution A at 15°C, stir evenly at 100 rpm to obtain solution B;
[0031] (C) Add peroxyacetic acid 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 the raw materials (kg): calcium peroxide 5, ammonium sulfate 23, peracetic acid 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 sulfate into solution A at 20°C, stir evenly at 110 rpm to obtain solution B;
[0037] (C) Add peroxyacetic acid to solution B at 15°C and stir at 350 rpm for 23 minutes to obtain the product.
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