A kind of inverse emulsion drag reducing agent for shale gas slick water fracturing and preparation method thereof
A technology of inverse emulsion and drag reducing agent, applied in chemical instruments and methods, drilling compositions and other directions, can solve the problems of low solid content of drag reducing agent, unfavorable industrialized production, complicated production process, etc., and simplify the production process. , The effect of improving structural stability and resistance reduction performance and reducing production cost
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Embodiment 1
[0036] Embodiment 1 (produced by 400kg)
[0037] Add 121.7kg of clear water to the reaction kettle, add 30kg of anionic monomer acrylic acid, add 16.7kg of sodium hydroxide and a sodium hydroxide solution prepared with 25kg of clear water, adjust the pH value to about 6.5, and add 98.5kg of non-ionic monomer microbial method propylene Amide, 0.3kg initiator azobisisobutylamidine hydrochloride and 1kg cosolvent sodium bicarbonate are stirred until fully dissolved to obtain an aqueous phase solution; 9kg sorbitan monooleic acid is added in 15# white oil of 90kg ester and 1kg sorbitan trioleate and 1.5kg of oil-soluble monomer lauryl methacrylate, stir evenly to obtain an oil phase; add the above-mentioned aqueous phase solution dropwise to the oil phase under continuous stirring, and add dropwise After the completion of high-speed emulsification for 30 minutes to obtain a stable inverse emulsion system; dissolve 0.3 kg of sodium bisulfite with 5 kg of clear water, and add the aq...
Embodiment 2
[0038] Embodiment 2 (produced by 400kg)
[0039]Add 121.6kg of clear water to the reaction kettle, add 32kg of anionic monomer acrylic acid, add 17.8kg of sodium hydroxide and 25kg of clear water to prepare the sodium hydroxide solution, adjust the pH value to about 6.5, add 96kg of non-ionic monomer microbial method acrylamide , 0.15kg initiator azobisisobutylamidine hydrochloride and 1kg cosolvent sodium bicarbonate, stir until fully dissolved to obtain an aqueous phase solution; add 9kg sorbitan monooleate in 15# white oil of 90kg and 1kg of sorbitan trioleate and 2kg of oil-soluble monomer lauryl methacrylate, stir to obtain an oil phase; the above-mentioned aqueous phase solution is added dropwise to the oil phase under continuous stirring, and after the addition is completed, High-speed emulsification for 30 minutes to obtain a stable inverse emulsion system; dissolve 0.45 kg of sodium bisulfite in 5 kg of clear water, and add the aqueous solution of sodium bisulfite dro...
Embodiment 3
[0040] Embodiment 3 (produced by 400kg)
[0041] Add 116.6kg of clear water to the reaction kettle, add 35kg of anionic monomer acrylic acid, add 19.5kg of sodium hydroxide and 25kg of clear water to prepare the sodium hydroxide solution, adjust the pH value to about 6.5, add 95kg of non-ionic monomer microbial method acrylamide , 0.3kg initiator azobisisobutylamidine hydrochloride and 1kg cosolvent sodium bicarbonate, stir until fully dissolved to obtain an aqueous phase solution; add 8.5kg sorbitan monooleic acid in 15# white oil of 90kg ester and 1.5kg sorbitan trioleate and 2kg of oil-soluble monomer lauryl methacrylate, stir evenly to obtain an oil phase; add the above-mentioned aqueous phase solution dropwise to the oil phase under continuous stirring, and add dropwise After the completion of high-speed emulsification for 30 minutes to obtain a stable inverse emulsion system; dissolve 0.6 kg of sodium bisulfite with 5 kg of clear water, and add the aqueous solution of so...
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