论文部分内容阅读
目前,美国Shell石油设备公司推出了专为注水泥单一孔径井眼开发的一次起下作业注水泥的完井装置。新研制开发的完井装置增加了人工升举能力,提高了注水泥单一孔径井眼的安全性。其专用部件由一个有专利权的偏心气举阀工作筒;一个由油管收回、地面控制的井下安全阀和一个流体静
At present, the United States Shell Petroleum Equipment Company launched a cement injection hole for the development of a hole cementing completion of the device. The newly developed completion device increases the artificial lift capacity and improves the safety of cementing a single borehole. Its special components consist of a patented eccentric gas lift valve mandrel, a downhole safety valve retracted by tubing and controlled by the ground and a hydrostatic