Sealing design and development of a movable and sealable sliding sleeve opening tool
The multi-stage sliding sleeve stage fracturing technology,as an important support for horizontal well stage fracturing,has been widely promoted and applied in recent years.The key to ensuring the success of this technology is to use a tool to shift the sliding sleeve and keep the previous stimulated stage being sealed well.A structure was designed to install a sealant cylinder on the sliding sleeve opening tool,using the interlayer sealing concept of axial mechanical compression of the rubber cylinder.A movable sealing sliding sleeve opening tool was developed,and a sealing evaluation test system was established.The results show that the sealing bearing capacity of the opening tool reaches 45MPa,and the reliability of the sealing design has been verified through wellbore testing,which meets the production application conditions.
NETL
NSTL
万方数据
维普
