Deformation and migration characteristics of bubbles moving in gas-liquid countercurrent flow in annulus
YIN Bangtang, DING Tianbao, WANG Shulong, WANG Zhiyuan, SUN Baojiang, ZHANG Wei, ZHANG Xuliang
Petroleum Exploration and Development . 2025, (2): 471 -484 .  DOI: 10.1016/S1876-3804(25)60580-5