变梯度控压钻井井控过程中井口回压变化规律
王江帅, 李军, 何岩峰, 柳贡慧, 邓嵩, 杨宏伟, 宋学锋, 杨青, 夏顺雷
Variation law of wellhead back pressure under well control during variable gradient managed pressure drilling
Wang Jiangshuai, Li Jun, He Yanfeng, Liu Gonghui, Deng Song, Yang Hongwei, Song Xuefeng, Yang Qing, Xia Shunlei
石油学报
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2021, (11): 1499
-1505
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DOI: 10.7623/syxb202111009