Super-salt-resistant suspension slickwater resistance reducing agent and preparation method thereof
A technology of slick water and drag reducing agent, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problem of the large amount of polymer drag reducing agent and additives, the impossibility of rapid on-site liquid preparation and real-time viscosity, and the impossibility of realizing Saving fresh water resources and environmental protection purposes, etc., to achieve the effects of saving fresh water resources and environmental protection, reducing consumption, and good temperature and shear resistance
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[0050] A preparation method of a super-salt-resistant suspended slick water drag-reducing agent, comprising the steps of:
[0051] 1) Place the mineral spirits of formula quantity in reaction kettle;
[0052] 2) Raise the temperature in the reactor to 45-50°C, control the stirring speed to 1000-1200r / min, and add the organic bentonite in the formula until the viscosity of the mixture is stable;
[0053] 3) Reduce the temperature in the reactor to 35-40°C, reduce the stirring speed to 500-600r / min, add the formulated amount of dispersant, steering agent, drainage aid, clay stabilizer and oxygen scavenger until fully dissolved;
[0054] 4) Increase the temperature in the reactor to 40°C, increase the stirring speed to 1300-1500r / min, and add the formulated amount of polymer drag reducer powder until the mixture of polymer drag reducer powder and step 3) is evenly mixed.
Embodiment 1
[0056] The polymer drag reducer powder in Example 1 is a zwitterionic polyacrylamide polymer. The zwitterionic polyacrylamide polymer is composed of acrylamide monomers, anionic monomers, cationic monomers, and hydrophobic monomers. Acrylamide The molar ratio of monomer, anionic monomer, cationic monomer and hydrophobic monomer is 8:1:1:0.003, the acrylamide monomer is acrylamide, and the anionic monomer is 2-acrylamide-2-methylpropanesulfonic acid (AMPS), the cationic monomer is dimethyl diallyl ammonium chloride (DMDAAC), and the hydrophobic monomer is a nonionic hydrophobic monomer.
[0057] The preparation method of the polymer drag reducer powder of present embodiment 1 comprises the following steps: acrylamide, dimethyl diallyl ammonium chloride (DMDAAC), 2-acrylamide-2-methylpropanesulfonic acid (AMPS ) with a molar ratio of 8:1:1 to prepare a 30% deionized aqueous solution, add a nonionic hydrophobic monomer with a molar ratio of 8:0.003 to acrylamide, and add ten time...
Embodiment 2
[0092] The polymer drag reducer powder in Example 2 is a zwitterionic polyacrylamide polymer. The zwitterionic polyacrylamide polymer is composed of acrylamide monomers, anionic monomers, cationic monomers and hydrophobic monomers. Acrylamide The molar ratio of monomer, anionic monomer, cationic monomer and hydrophobic monomer is 10:3:1.5:0.001, the acrylamide monomer is acrylamide, the anionic monomer is acrylic acid or methacrylic acid, and the cationic monomer is 2- Methacryloyloxyethyltrimethylammonium chloride or acryloyloxyethyltrimethylammonium chloride, the hydrophobic monomer is a nonionic hydrophobic monomer.
[0093] The preparation method of the polymer drag reducer powder of the present embodiment 2 comprises the following steps: acrylamide, 2-methacryloyloxyethyltrimethylammonium chloride or acryloyloxyethyltrimethylammonium chloride, Acrylic acid or methacrylic acid is prepared into a 30% deionized aqueous solution at a molar ratio of 10:1.5:3, and a nonionic hy...
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Abstract
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