Preparation method and fracturing construction method of locally and continuously mixed clean fracturing fluid additive
A technology for cleaning fracturing fluid and additives, applied in chemical instruments and methods, earthwork drilling, drilling compositions, etc., can solve the problems of increased processing difficulty, high cost, incompleteness, etc., and achieve preparation and fracturing construction The method is simple, good sand-carrying performance, and the effect of a wide range of applications
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Embodiment 1
[0052] 1. A method for continuously mixing clean fracturing fluid additives in situ, comprising the steps of:
[0053] 1) Weigh the raw materials according to the mass percentage of the following on-site continuous mixing clean fracturing fluid additive formula: take 300kg of octadecyltrimethylammonium chloride with an effective content of 70±2%, and 200kg with an effective content of 70 ±2% octadecyl dihydroxyethyl methyl ammonium nitrate, 150kg of o-hydroxybenzoic acid with effective content ≥99.0%, 80kg of tetramethylammonium chloride with effective content ≥99.0%, 20kg of Polypropylene glycol, its molecular weight 1000, 100kg of isopropanol with an effective content ≥ 99.0%, 150kg of clear water; the above-mentioned components are all industrial grade.
[0054] 2) Preheat the above-mentioned 300kg octadecyltrimethylammonium chloride and 200kg octadecyldihydroxyethylmethylammonium nitrate in a drying room at 60-80°C for 8-10 hours, and wait for 18 Alkyl trimethyl ammonium...
Embodiment 2
[0058] Embodiment 2: the preparation method of on-site continuous mixing clean fracturing fluid additive, it comprises the steps:
[0059] 1) Weigh the raw materials according to the mass percentage of the clean fracturing fluid additive formula for continuous mixing on site as follows: take 200kg of long-chain alkyl trimethyl quaternary ammonium salt, 100 kg of long-chain alkyl dihydroxyethyl methyl quaternary ammonium Salt, 50kg salicylic acid, 50kg tetramethylammonium chloride, 20kg polyalcohol, 100kg small molecule alcohol, 480kg clear water; Described long-chain alkyl trimethyl quaternary ammonium salt is hexadecyl trimethyl chloride Ammonium; the long-chain alkyl dihydroxyethyl methyl quaternary ammonium salt is hexadecyl dihydroxy ethyl methyl ammonium chloride; the salicylic acid is o-hydroxybenzoic acid; the polymer alcohol Be polyethylene glycol; Described small molecule alcohol is methyl alcohol;
[0060] 2) Preheat the above-mentioned 200kg long-chain alkyl trimet...
Embodiment 3
[0064] The preparation method of Example 3 is basically the same as that of Example 2, except that the formulation of the cleaning fracturing fluid additive is different in continuous mixing on site.
[0065] The on-site continuous mixing cleaning fracturing fluid additive formula of the present embodiment is: get 250kg long-chain alkyl trimethyl quaternary ammonium salt, 150kg long-chain alkyl dihydroxyethyl methyl quaternary ammonium salt, 100kg salicylic acid, 70kg tetramethylammonium chloride, 50kg polymeric alcohol, 200kg small molecule alcohol, 180kg clear water; Described long-chain alkyltrimethylammonium salt is cetyltrimethylammonium bromide; Described long-chain The alkyl dihydroxyethyl methyl quaternary ammonium salt is cetyl dihydroxy ethyl methyl ammonium bromide; the salicylic acid is o-hydroxybenzoic acid; the polymer alcohol is a kind of polypropylene glycol ; The small molecule alcohol is ethanol.
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