A gas kick early detection method outside riser based on Doppler ultrasonic wave during deepwater drilling
YIN Bangtang,LIN Yingsong,WANG Zhiyuan,SUN Baojiang,LIU Shujie,SUN Jinsheng,HOU Jian,REN Meipeng,WANG Ning
Fig. 18. The effects of fluid density (viscosity) on amplitude spectrum at the gas void fraction of 0.