Preparation of a novel fracturing fluid with good heat and shear resistance.

ABSTRACT: A new terpolymer (MAS-1) was created by copolymerizing acrylamide (AM), acrylic acid (AA), and 4-isopropenylcarbamoyl-benzene sulfonic acid (AMBS). Thermogravimetric analysis (TGA) suggested that MAS-1 has better heat resistance and meets the requirements for a fracturing fluid at 200 °C. X-ray diffraction (XRD), and conductivity tests showed that MAS-1 has good water solubility. The viscosity of the fracturing fluids containing MAS-1 was found to be about 135 mPa s after 120 min at 170 s^-1 and 150 °C. SEM images and the determination of viscoelasticity showed that MAS-1 has a dense and robust spatial network structure in the fracturing fluid. The sedimentation velocity of the proppant was 0.0528 cm min^-1 at 90 °C. When enough ammonium persulfate was added to yield ap

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC9059618 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature