公开(公告)号：US20240060386A1

公开(公告)日：2024-02-22

申请号：US18260490

申请日：2021-12-22

申请人： Schlumberger Technology Corporation

发明人： Richard James Windslow ,  Travis Wernecke ,  Mikhail Gotlib ,  Henghua Jin ,  Karen Braden

IPC分类号： E21B33/12 ,  E21B33/128 ,  F16J15/18

CPC分类号： E21B33/1216 ,  E21B33/128 ,  F16J15/18

摘要： A back-up ring system incudes an outer C-ring, an inner C-ring that mates with the outer C-ring, the inner C-ring including a first rupture port, and a ring sheath that fits onto the inner C-ring, the ring sheath including a cut-out region, and a second rupture point. The inner C-ring further includes a blocking segment that angularly offsets the first and second rupture points. The cut-out region of the ring sheath mates with the blocking segment of the inner C-ring. The ring sheath further incudes a ‘7’ shaped cross-sectional profile.

公开(公告)号：US12129734B2

公开(公告)日：2024-10-29

申请号：US18260490

申请日：2021-12-22

申请人： Schlumberger Technology Corporation

发明人： Richard James Windslow ,  Travis Wernecke ,  Mikhail Gotlib ,  Henghua Jin ,  Karen Braden

IPC分类号： E21B33/12 ,  E21B33/128 ,  F16J15/18

CPC分类号： E21B33/1216 ,  E21B33/1208 ,  E21B33/128 ,  F16J15/18

摘要： A back-up ring system incudes an outer C-ring, an inner C-ring that mates with the outer C-ring, the inner C-ring including a first rupture port, and a ring sheath that fits onto the inner C-ring, the ring sheath including a cut-out region, and a second rupture point. The inner C-ring further includes a blocking segment that angularly offsets the first and second rupture points. The cut-out region of the ring sheath mates with the blocking segment of the inner C-ring. The ring sheath further incudes a ‘7’ shaped cross-sectional profile.