阿果石油APP正式发布
石油推广咨询
石油地质QQ群:181983917
物探地震反演群:165218480
阿果石油官方微信公众号:agoil2005
UID:427002
UID:434342
UID:379265
UID:365908
wwg08:就是固井用的,装在最下端一根套管的下面 (2010-08-12 15:27)
liuyuanxiang:这玩意固完井以后向下钻会需要钻掉吧?会有铁屑不? (2010-06-08 22:54)
UID:437012
UID:358597
UID:416823
UID:305845
UID:349353