Hydrophobic and oleophobic fluorine-containing group-modified drag reducer for hydraulic fracturing of inverse emulsion
An inverse emulsion and hydraulic fracturing technology, which is applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of reservoir damage, poor flowback performance, etc., achieve high flowback, improve protection performance, and low The effect of the damage characteristic
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Embodiment 1
[0025] The raw materials were weighed according to the weight percentages of the following components.
[0026] Water-soluble monomer A1: 1 kg of 2-hydroxyethyl acrylate, 1 kg of vinyl acetate, 4 kg of acrylamide;
[0027] Fluorinated monomer A2: 0.9999 kg of sodium 2-(trifluoromethyl)acrylate;
[0028] Mutual solvent A3: 5 kg of ethylene glycol monomethyl butyl ether;
[0029] Water A4: 5 kg of water;
[0030] Oil phase B: 83 kg of mineral oil;
[0031] Free radical initiator C: 0.10 g of ammonium persulfate.
[0032] The above-mentioned components are combined under the condition of rapid mechanical stirring, and the system after complete polymerization is a water-repellent, oil-repellent and fluorine-containing group-modified anti-emulsion drag reducer for hydraulic fracturing.
Embodiment 2
[0034] The raw materials were weighed according to the weight percentages of the following components.
[0035] Water-soluble monomer A1-1: 1 kg of 2-hydroxyethyl acrylate, 1 kg of vinyl acetate, 4 kg of acrylamide;
[0036] Fluorinated monomer A2-1: 0.9999 kg of sodium 2-(trifluoromethyl)acrylate;
[0037] Mutual solvent A3-1: 5 kg of ethylene glycol monomethyl butyl ether;
[0038] Water A4-1: 5 kg of water;
[0039] After the above items are mixed, it is the water phase-1;
[0040] Water-soluble monomer A1-2: 1 kg of 2-hydroxyethyl acrylate, 1 kg of vinyl acetate, 4 kg of acrylamide;
[0041] Fluorinated monomer A2-2: 1 kg of sodium 2-(trifluoromethyl)acrylate;
[0042]Mutual solvent A3-2: 5 kg of ethylene glycol monomethyl butyl ether;
[0043] Water A4-2: 5 kg of water;
[0044] After the above items are mixed, it is the water phase-2;
[0045] Oil phase B: 66 kg of mineral oil;
[0046] Free radical initiator C: 0.10 g of ammonium persulfate.
[0047] Mix water ...
Embodiment 3
[0049] The raw materials were weighed according to the weight percentages of the following components.
[0050] Water-soluble monomer A1-1: 1 kg of 2-hydroxyethyl acrylate, 1 kg of vinyl acetate, 4 kg of acrylamide;
[0051] Fluorinated monomer A2-1: 1 kg of sodium 2-(trifluoromethyl)acrylate;
[0052] Mutual solvent A3-1: 5 kg of ethylene glycol monomethyl butyl ether;
[0053] Water A4-1: 5 kg of water;
[0054] After the above items are mixed, it is the water phase-1;
[0055] Water-soluble monomer A1-2: 1 kg of 2-hydroxyethyl acrylate, 1 kg of vinyl acetate, 4 kg of acrylamide;
[0056] Fluorinated monomer A2-2: 0.9999 kg of sodium 2-(trifluoromethyl)acrylate;
[0057] Mutual solvent A3-2: 5 kg of ethylene glycol monomethyl butyl ether;
[0058] Water A4-2: 5 kg of water;
[0059] After the above items are mixed, it is the water phase-2;
[0060] Oil phase B: 66 kg of mineral oil;
[0061] Free radical initiator C: 0.10 g of ammonium persulfate.
[0062] Mix water...
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