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公开(公告)号：US08474537B2
公开(公告)日：2013-07-02
申请号：US12170043
申请日：2008-07-09
Applicant: Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, Jr. , Robert N. Rogers , William T. Higgins
Inventor： Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, Jr. , Robert N. Rogers , William T. Higgins
CPC classification number: E21B33/038
Abstract: A wellhead connector for connecting a riser or production tree to a wellhead of a subsea well utilizes a singular annular piston to lock the connector onto the wellhead. The wellhead connector includes a housing that contains dogs for engagement with the exterior of the wellhead housing. A cam ring is also included, which has an inner side for engaging the dogs and moving them inward into a locked position with the wellhead housing. The cam ring is of a reduced proportion relative to prior art. As such, the cam ring outer side is dimensioned to contact the inner side of the connector housing under load. Connecting rods connect the piston to the cam rings. As the piston moves downward, the cam ring also moves downward, forcing the dogs inward into a locked position. As the piston moves upward, the cam ring also moves upward, thereby unlocking the connector. A secondary annular piston is also provided to guarantee unlocking.At preload, a profile on the lower portion of the connector body engages a stepped profile on the outer diameter of the wellhead thereby creating a secondary load path for reacting to the applied bending moment.
Abstract translation: 用于将提升管或生产树连接到海底井的井口的井口连接器利用单个环形活塞将连接器锁定在井口上。 井口连接器包括一个包含用于与井口壳体的外部接合的狗的壳体。 还包括凸轮环，其具有用于接合狗的内侧并且将它们向内移动到具有井口壳体的锁定位置。 凸轮环相对于现有技术具有减小的比例。 因此，凸轮环外侧的尺寸设计成在负载下接触连接器壳体的内侧。 连杆将活塞连接到凸轮环。 当活塞向下移动时，凸轮环也向下移动，迫使狗向内进入锁定位置。 当活塞向上移动时，凸轮环也向上移动，从而解锁连接器。 还提供辅助环形活塞以保证解锁。 在预加载时，连接器主体的下部的轮廓在井口的外径上接合阶梯轮廓，从而形成用于对所施加的弯矩作出反应的次级载荷路径。
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公开(公告)号：US20100006298A1
公开(公告)日：2010-01-14
申请号：US12170043
申请日：2008-07-09
Applicant: Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, JR. , Robert N. Rogers , Willam T. Higgins
Inventor： Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, JR. , Robert N. Rogers , Willam T. Higgins
CPC classification number: E21B33/038
Abstract: A wellhead connector for connecting a riser or production tree to a wellhead of a subsea well utilizes a singular annular piston to lock the connector onto the wellhead. The wellhead connector includes a housing that contains dogs for engagement with the exterior of the wellhead housing. A cam ring is also included, which has an inner side for engaging the dogs and moving them inward into a locked position with the wellhead housing. The cam ring is of a reduced proportion relative to prior art. As such, the cam ring outer side is dimensioned to contact the inner side of the connector housing under load. Connecting rods connect the piston to the cam rings. As the piston moves downward, the cam ring also moves downward, forcing the dogs inward into a locked position. As the piston moves upward, the cam ring also moves upward, thereby unlocking the connector. A secondary annular piston is also provided to guarantee unlocking.At preload, a profile on the lower portion of the connector body engages a stepped profile on the outer diameter of the wellhead thereby creating a secondary load path for reacting to the applied bending moment.
Abstract translation: 用于将提升管或生产树连接到海底井的井口的井口连接器利用单个环形活塞将连接器锁定在井口上。 井口连接器包括一个包含用于与井口壳体的外部接合的狗的壳体。 还包括凸轮环，其具有用于接合狗的内侧并且将它们向内移动到具有井口壳体的锁定位置。 凸轮环相对于现有技术具有减小的比例。 因此，凸轮环外侧的尺寸设计成在负载下接触连接器壳体的内侧。 连杆将活塞连接到凸轮环。 当活塞向下移动时，凸轮环也向下移动，迫使狗向内进入锁定位置。 当活塞向上移动时，凸轮环也向上移动，从而解锁连接器。 还提供辅助环形活塞以保证解锁。 在预加载时，连接器主体的下部的轮廓在井口的外径上接合阶梯轮廓，从而形成用于对所施加的弯矩作出反应的次级载荷路径。
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公开(公告)号：US20090014184A1
公开(公告)日：2009-01-15
申请号：US11776171
申请日：2007-07-11
Applicant: Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, JR. , Robert N. Rogers
Inventor： Robert K. Voss , Perry J. Stokes , David W. Hughes , Joseph W. Pallini, JR. , Robert N. Rogers
CPC classification number: F16L37/002 , E21B33/038 , F16L37/62
Abstract: A wellhead connector for connecting a riser or production tree to a wellhead of a subsea well utilizes a singular annular piston to lock the connector onto the wellhead. The wellhead connector includes a housing that contains dogs for engagement with the exterior of the wellhead housing. A cam ring is also included, which has an inner side for engaging the dogs and moving them inward into a locked position with the wellhead housing. Connecting rods connect the piston to the cam rings. As the piston moves downward, the cam ring also moves downward, forcing the dogs inward into a locked position. As the piston moves upward, the cam ring also moves upward, thereby unlocking the connector. A secondary annular piston is also provided to guarantee unlocking.
Abstract translation: 用于将提升管或生产树连接到海底井的井口的井口连接器利用单个环形活塞将连接器锁定在井口上。 井口连接器包括一个包含用于与井口壳体的外部接合的狗的壳体。 还包括凸轮环，其具有用于接合狗的内侧并且将它们向内移动到具有井口壳体的锁定位置。 连杆将活塞连接到凸轮环。 当活塞向下移动时，凸轮环也向下移动，迫使狗向内进入锁定位置。 当活塞向上移动时，凸轮环也向上移动，从而解锁连接器。 还提供辅助环形活塞以保证解锁。
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