The rheological behavior of polyacrylamide(PMA) in aqueous solution under the conditions of vibration

According to the micro-physical model of the glass capillary which coincidence with polymer flooding,a dynamic capillary rheometer,the measurement of rheological behavior of polyacrylamide(PMA) aqueous solution under the conditions of vibration was developed.The experimental results showed that changes in vibration amplitude(A) and frequency(f) have great influence on the average dynamic apparent viscosity(a) of the solution.And the average dynamic apparent viscosity of low concentration of PAM aqueous solution increased with the amplitude increasing,while the average dynamic apparent viscosity of high concentration of PAM aqueous solution decrease with the amplitude increasing.The average apparent viscosity of both high concentration and low concentration of PAM aqueous solution decreased with the increasing frequency.Therefore,provides a theoretical basis for seismic shooting oil recovery technology.