Cross-linking agent for low concentration guanidine gum pressing crack system and preparation technology thereof
A low-concentration, cross-linking agent technology, applied in drilling compositions, chemical instruments and methods, etc., can solve problems such as increasing the cost of fracturing fluid, and achieve the effects of reducing damage, clarifying fluid, and reducing the amount of guar gum
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[0047] Example 1:
[0048] Low-concentration guar gum fracturing system crosslinking agent, which is made of raw materials with the following weight ratios:
[0049] Glycerol 12.5,
[0050] Borax 10,
[0051] Sodium gluconate 4,
[0052] Sodium hydroxide 1.5,
[0053] Inorganic zirconium salt 4,
[0054] Water 68.
[0055] The inorganic zirconium salt is a mixture of zirconium sulfate and zirconium acetate.
[0056] The preparation process of low-concentration guar gum fracturing system crosslinking agent includes the following steps:
[0057] S1. Weigh each raw material component according to the above weight ratio, then add all the water into the reaction kettle, and turn on the stirring device in the kettle;
[0058] S2. Add glycerol to the reaction kettle and stir for 15 minutes, while steam is introduced to heat the reaction kettle, so that the temperature in the reaction kettle is maintained at 70-75°C;
[0059] S3. Slowly add borax gradually, stir for 20 minutes, after dissolving more t...
Example Embodiment
[0063] Example 2:
[0064] Low-concentration guar gum fracturing system crosslinking agent, which is made of raw materials with the following weight ratios:
[0065] Glycerol 20,
[0066] Borax 15,
[0067] Sodium gluconate 6,
[0068] Sodium hydroxide 2,
[0069] Inorganic zirconium salt 4,
[0070] Triethanolamine 4,
[0071] Water 49.
[0072] The inorganic zirconium salt is zirconium sulfate.
[0073] The preparation process of low-concentration guar gum fracturing system crosslinking agent includes the following steps:
[0074] S1. Weigh each raw material component according to the above weight ratio, then add all the water into the reaction kettle, and turn on the stirring device in the kettle;
[0075] S2. Add glycerol to the reaction kettle, stir for 10 minutes, while passing steam to heat the reaction kettle, so that the temperature in the reaction kettle is maintained at 70-75°C;
[0076] S3. Slowly add borax gradually, stir for 25 minutes, after dissolving more than 80%, proceed to t...
Example Embodiment
[0080] Example 3:
[0081] Low-concentration guar gum fracturing system crosslinking agent, which is made of raw materials with the following weight ratios:
[0082] Glycerol 18,
[0083] Borax 13,
[0084] Sodium gluconate 5,
[0085] Sodium hydroxide 1.5,
[0086] Inorganic zirconium salt 3,
[0087] Water 59.5.
[0088] The inorganic zirconium salt is a mixture of zirconium tetrachloride, zirconium oxychloride and zirconium sulfate.
[0089] The preparation process of low-concentration guar gum fracturing system crosslinking agent includes the following steps:
[0090] S1. Weigh each raw material component according to the above weight ratio, then add all the water into the reaction kettle, and turn on the stirring device in the kettle;
[0091] S2. Add glycerol to the reaction kettle, stir for 20 minutes, while passing steam to heat the reaction kettle, so that the temperature in the reaction kettle is maintained at 70-75°C;
[0092] S3. Slowly add borax gradually, stir for 15 minutes, aft...
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