It is very hard to fish the stuck submersible electric pumps in the deep deviated holes in Jidong Oilfield owing to the complicated power package and fairly large pump OD.

 
  • 冀東油田油水井較深、斜度大,電潛泵外徑大、機組結構復雜,泵被卡落井事故時(shí)有發(fā)生,給打撈作業(yè)帶來(lái)很大困難。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan