公开(公告)号：WO2015071411A2

公开(公告)日：2015-05-21

申请号：PCT/EP2014074604

申请日：2014-11-14

Applicant: MHWIRTH AS

Inventor： BJØRNEKLETT BØRGE ,  HANSSON PER MARTIN ERIK ,  SOLBERG STIAN

CPC classification number: F16L21/08 ,  E21B17/01 ,  E21B17/046 ,  E21B17/085 ,  F16L23/003 ,  F16L37/113 ,  F16L2201/40

Abstract: A riser connector assembly (6) for connecting two riser sections (5a,b) in an end-to-end relationship comprises a first connector assembly portion (6a), a second connector assembly portion (6b), and a locking ring (11) rotatably connected to the first connector assembly portion. Locking members are configured and arranged to selectively and releasably interlock by relative rotation between the first connector assembly portion and the locking ring and the second connector assembly portion. The locking ring (11) is rotatable between a first position where all said locking members are interlocked, a second position where the first locking members (20, 21) and the third locking members (25, 26) are interlocked but the second locking members (19) and the fourth locking members (24) not interlocked, and a third position where none of said locking members are interlocked and the locking ring is removable from the first connector assembly portion. At least one of the assembly portions (6a,b) comprises alignment means (27).

Abstract translation: 一种用于以端对端关系连接两个立管部分（5a，b）的提升管连接器组件（6）包括第一连接器组件部分（6a），第二连接器组件部分（6b）和锁定环 ）可旋转地连接到第一连接器组件部分。 锁定构件被构造和布置成通过第一连接器组件部分和锁定环与第二连接器组件部分之间的相对旋转而选择性地和可释放地互锁。 锁定环（11）可在所有所述锁定构件互锁的第一位置和第一锁定构件（20,21）与第三锁定构件（25,26）互锁的第二位置和第二锁定构件 （19）和第四锁定构件（24）不互锁;以及第三位置，其中所述锁定构件都不互锁，并且所述锁定环可从所述第一连接器组件部分移除。 组装部分（6a，b）中的至少一个包括对准装置（27）。

公开(公告)号：NO20231033A1

公开(公告)日：2025-01-20

申请号：NO20231033

申请日：2023-09-28

Applicant: MHWIRTH AS

Inventor： ALBREKTSEN ARNE ,  SOLBERG STIAN ,  JACK SHAUN VICTOR

Abstract: A mud return riser (20) comprising a plurality of interconnected riser sections (20a, 20b) through which a plurality of pipes (40) extend, wherein a connection between an upper end flange (25) of a first riser section (20a) and a lower end flange (24) of an adjacent second riser section (20b) is secured by means of a rotatable lock ring (30), each riser section (20a, 20b) having a support skirt (23) rigidly fixed to the upper end flange (25) and configured for engagement with a vertical friction support (50). There is also provided a mud return riser section (20a, 20b) for a mud return riser (20), a mud return riser hang-off system (60) comprising a vertical friction support (50) and a plurality of mud return riser sections (20a, 20b), and a method of building a mud return riser (20).

公开(公告)号：AU2014350166B2

公开(公告)日：2018-10-18

申请号：AU2014350166

申请日：2014-11-14

Applicant: MHWIRTH AS

Inventor： BJORNEKLETT BORGE ,  HANSSON PER MARTIN ERIK ,  SOLBERG STIAN

IPC: F16L37/113 ,  E21B17/08

Abstract: A riser connector assembly (6) for connecting two riser sections (5a, b) in an end-to-end relationship comprises a first connector assembly portion (6a), a second connector assembly portion (6b), and a locking ring (11) rotatably connected to the first connector assembly portion (6a). Locking members are configured and arranged to selectively and releasably interlock by relative rotation between the first connector assembly portion and the locking ring (11) and the second connector assembly portion (6b). The locking ring (11) is rotatable between a first position where all said locking members are interlocked, a second position where the first locking members (20, 21) and the third locking members (25, 26) are interlocked but the second locking members (19) and the fourth locking members (24) not interlocked, and a third position where none of said locking members are interlocked and the locking ring (11) is removable from the first connector assembly portion (6a). At least one of the assembly portions (6a, b) comprises alignment means (27).

公开(公告)号：NO345801B1

公开(公告)日：2021-08-16

申请号：NO20160331

申请日：2016-02-28

Applicant: MHWIRTH AS

Inventor： BJØRNEKLETT BØRGE ,  HANSSON PER MARTIN ERIK ,  SOLBERG STIAN

IPC: E21B17/08 ,  F16L37/113

公开(公告)号：NO348432B1

公开(公告)日：2025-01-20

申请号：NO20231033

申请日：2023-09-28

Applicant: MHWIRTH AS

Inventor： ALBREKTSEN ARNE ,  SOLBERG STIAN ,  JACK SHAUN VICTOR

IPC: E21B17/01 ,  E21B17/046 ,  E21B17/08 ,  E21B19/10 ,  F16L37/113

Abstract: A mud return riser (20) comprising a plurality of interconnected riser sections (20a, 20b) through which a plurality of pipes (40) extend, wherein a connection between an upper end flange (25) of a first riser section (20a) and a lower end flange (24) of an adjacent second riser section (20b) is secured by means of a rotatable lock ring (30), each riser section (20a, 20b) having a support skirt (23) rigidly fixed to the upper end flange (25) and configured for engagement with a vertical friction support (50). There is also provided a mud return riser section (20a, 20b) for a mud return riser (20), a mud return riser hang-off system (60) comprising a vertical friction support (50) and a plurality of mud return riser sections (20a, 20b), and a method of building a mud return riser (20).