Abstract
A novel cement fluid loss additive P1402, which synthesized using the monomers of 2-acrylamido-2-methyl-propane sulphonic acid (AMPS), acrylic acid (AA), N,N dimethyl acrylamide (DMAM) and N-Vinyl-2-pyrrolidone (NVP) by the method of aqueous solution polymerization. The ratio of monomers AMPS:AA:DMAM:NVP at 2:1.5:1:1, reaction PH at 10.8, reaction temperature at 65°Cand reaction time about 5 hours. The IR spectrum of P1402 show that the polymer with the structure of all the monomers .The fluid loss performance testing show that the forpolymers P1402 has an excellent thermal stability. The fluid loss additive P1402 has an excellent tolerance to salt and high temperature.
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