公开(公告)号：US12049796B2

公开(公告)日：2024-07-30

申请号：US17769240

申请日：2020-10-15

申请人： Plexus Ocean Systems Limited

发明人： Michael Robertson ,  Richard Arthur ,  Craig Hendrie ,  Brent Harrald ,  Steve Rizza ,  Jinde Hao

IPC分类号： E21B33/03 ,  E21B33/035

CPC分类号： E21B33/03 ,  E21B33/0353

摘要： A crown plug for a tree of an oil/gas well/wellhead has a securement arrangement for securing the crown plug within the tree. The main body of the crown plug comprises a solid body creating the barrier within the production bore. The solid body creates a robust, strong and reliable barrier. The crown plug is retained within the outer member through inward distortion which secures the crown plug. The securement arrangement arises from an inward radial force that distorts the outer member inwardly to grip a component located within the outer member. The outer member elastically deforms and the outer member returns to a released position once the clamping force is released. Two concentric oppositely arranged tapered surfaces move axially to create the inwardly directed force. The clamping force and the solid body together provide an improved crown plug which is easy and reliable to operate.