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公开(公告)号：US20170138377A1
公开(公告)日：2017-05-18
申请号：US14941259
申请日：2015-11-13
发明人： Joseph Edison Huseman , Eric Dale Larson , Jamie Clay Gamble , Wayne Harvey , Alexander McAuley , Juan Pedro Trevino
IPC分类号： F15B15/14
CPC分类号： F15B15/1471 , E21B17/07 , E21B19/004 , F15B15/02 , F15B15/1476 , F15B15/226 , F15B20/007 , F15B2211/8752
摘要： A mechanism to reduce load of a hydraulic cylinder having a body, a stem movable within the body, and a piston rod connected to the stem. The mechanism includes a mechanism body attached to the body and defining a recess, and a retainer attached to the mechanism adjacent the opening of the recess so that the retainer substantially fills the opening of the recess, and having an aperture that receives an end of the piston rod. The mechanism further includes a cap attached to the piston rod of the hydraulic cylinder within the recess, the cap having a diameter greater than the diameter of the aperture in the retainer, and a spring connected to the cap at a first end and to the retainer at a second end so that as the piston rod moves relative to the failsafe mechanism body, to reduce load transfer between the piston rod and the cylinder body.
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公开(公告)号：US11851957B2
公开(公告)日：2023-12-26
申请号：US17226484
申请日：2021-04-09
CPC分类号： E21B19/165 , E21B17/01 , E21B19/002 , E21B33/038 , G01D5/20
摘要： A riser sensor unit is used to sense engagement of a subsea riser tool with a riser coupling. The riser sensor unit includes a power supply configured to convert alternating current to direct current, an intrinsic safety barrier connected to the power supply, and a first sensor powered by the intrinsic safety barrier. The first sensor is attached to a sub of the subsea riser tool and is configured to generate a first signal upon detecting contact of a bottom surface of the sub with the riser coupling. The intrinsic safety barrier is configured to receive the first signal from the first sensor and transmit the first signal to a control system located remotely from the intrinsic safety barrier.
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3.发明申请公开(公告)号：US20160340988A1
公开(公告)日：2016-11-24
申请号：US15160397
申请日：2016-05-20
CPC分类号： E21B19/165 , E21B17/01 , E21B17/085 , E21B19/002 , E21B33/038 , G01D5/20
摘要： Systems and methods for a riser coupling are disclosed. A riser sensor unit for sensing engagement of a riser tool with a riser coupling includes a first sensor attached to a sub of the riser tool. The first sensor is configured to generate a first signal upon detecting contact with the riser coupling, and an intrinsic safety barrier is configured to transmit the first signal to a control system.
摘要翻译： 公开了用于提升管耦合的系统和方法。 用于感测提升器工具与立管联接件的接合的提升管传感器单元包括附接到提升管工具的一部分的第一传感器。 第一传感器被配置为在检测到与提升管耦合器的接触时产生第一信号，并且本征安全栅被配置为将第一信号传输到控制系统。
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公开(公告)号：US20220056771A1
公开(公告)日：2022-02-24
申请号：US17226484
申请日：2021-04-09
摘要： Systems and methods for a riser coupling are disclosed. A riser sensor unit for sensing engagement of a riser tool with a riser coupling includes a first sensor attached to a sub of the riser tool. The first sensor is configured to generate a first signal upon detecting contact with the riser coupling, and an intrinsic safety barrier is configured to transmit the first signal to a control system.
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公开(公告)号：US09945401B2
公开(公告)日：2018-04-17
申请号：US14941259
申请日：2015-11-13
发明人： Joseph Edison Huseman , Eric Dale Larson , Jamie Clay Gamble , Wayne Harvey , Alexander McAuley , Juan Pedro Trevino
CPC分类号： F15B15/1471 , E21B17/07 , E21B19/004 , F15B15/02 , F15B15/1476 , F15B15/226 , F15B20/007 , F15B2211/8752
摘要： A mechanism to reduce load of a hydraulic cylinder having a body, a stem movable within the body, and a piston rod connected to the stem. The mechanism includes a mechanism body attached to the body and defining a recess, and a retainer attached to the mechanism adjacent the opening of the recess so that the retainer substantially fills the opening of the recess, and having an aperture that receives an end of the piston rod. The mechanism further includes a cap attached to the piston rod of the hydraulic cylinder within the recess, the cap having a diameter greater than the diameter of the aperture in the retainer, and a spring connected to the cap at a first end and to the retainer at a second end so that as the piston rod moves relative to the failsafe mechanism body, to reduce load transfer between the piston rod and the cylinder body.
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