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孙金声
1,
2
, 黄贤斌
2
, 蒋官澄
3
, 吕开河
2
, 刘敬平
2
, 代志文
2
Development of key additives for organoclay-free oil-based drilling mud and system performance evaluation
SUN Jinsheng
1,
2
, HUANG Xianbin
2
, JIANG Guancheng
3
, LYU Kaihe
2
, LIU Jingping
2
, DAI Zhiwen
2