About Wu Wei
About Sinopec International Petroleum Exploration and Production Corp., Beijing
About Ling Wenxue
About Sinopec Res. Inst. of Petroleum Engineering, Beijing
About Si Yinghui
About Drilling Technol. Res. Inst., Sinopec Shengli Oilfield Serv. Corp., Shandong, Dongying
About Shiyou Zuantan Jishu
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About hard
About coring
About recovery rate
About oil field
About well(oil and gas)
About wildcat
About パラメータ最適化
About 軟質
About Drilling and cutting
About 油田
About 掘削
About 解決策