A great progress has been made in drilling technology in China from 1986 to 1990 by populari-zing research achievements and emphasizing high economic efficiency of exploration and develop-ment,high quality of drilling...A great progress has been made in drilling technology in China from 1986 to 1990 by populari-zing research achievements and emphasizing high economic efficiency of exploration and develop-ment,high quality of drilling engineering,high drilling rate and formation damage prev ention.展开更多
文摘A great progress has been made in drilling technology in China from 1986 to 1990 by populari-zing research achievements and emphasizing high economic efficiency of exploration and develop-ment,high quality of drilling engineering,high drilling rate and formation damage prev ention.
