Tension adjustment mechanism employing stepped or serrated ramps for
adjusting tension of a tendon from a floating marine platform
    1.
    发明授权
    Tension adjustment mechanism employing stepped or serrated ramps for adjusting tension of a tendon from a floating marine platform 失效
    张力调节机构采用阶梯式或锯齿状坡道,用于调整浮动海洋平台上腱的张力

    公开(公告)号:US5873678A

    公开(公告)日:1999-02-23

    申请号:US780059

    申请日:1996-12-23

    申请人: Charles J. Moses

    发明人: Charles J. Moses

    IPC分类号: E02D5/76 E02D27/52 E02D5/34

    CPC分类号: E02D5/765 E02D27/52

    摘要: Vertical movement of a floating marine platform is reduced by tendons extending from the platform to anchors on the seabed. A final tension adjustment to equalize the load on all of the tendons is made by a respective tension adjustment mechanism incorporated into the top connector of each tendon. The tension adjustment mechanism includes a split load ring assembly having an upper ring and a lower ring. The upper ring and the lower ring abut each other at respective complementary surfaces. Each surface has a series of serrated ramps. A rotation of one ring with respect to the other causes the upper ring to climb over the lower ring to thereby increase the tension in the tendon. Rotation of the upper ring with respect to the lower ring, for example, is achieved by a motor driven gear ring.

    摘要翻译: 通过从平台延伸到海床上的锚杆,可以减少浮动海洋平台的垂直运动。 通过结合到每个腱的顶部连接器中的相应的张力调节机构来实现均衡所有腱上的负载的最终张力调节。 张力调节机构包括具有上环和下环的分离负载环组件。 上环和下环在相应的互补表面处彼此邻接。 每个表面都有一系列锯齿形斜面。 一个环相对于另一个环的旋转导致上环爬过下环,从而增加了腱中的张力。 例如,上环相对于下环的旋转通过电机驱动的齿圈实现。

    Flexible/rigid riser system
    2.
    发明授权
    Flexible/rigid riser system 失效
    柔性/刚性提升管系统

    公开(公告)号:US5615977A

    公开(公告)日:1997-04-01

    申请号:US117307

    申请日:1993-09-07

    摘要: A continuous bend flexible/rigid riser system is provided for coupling a subsea location to an offshore platform or vessel. The riser system comprises a first rigid pipe section coupled at its upper end to the platform. A plurality of intermediate pipe sections are mutually coupled end to end, and are coupled in series with the first rigid pipe section by means of a plurality of flexible couplings. The lower end of the last in the series of intermediate pipe sections is coupled to the subsea location. The flexible/rigid riser system reduces bending stresses transmitted along the riser by allowing angular displacement of the pipe sections with respect to one another.

    摘要翻译: 提供连续弯曲柔性/刚性提升机系统,用于将海底位置耦合到海上平台或船舶。 提升管系统包括在其上端连接到平台的第一刚性管段。 多个中间管段相互并联,并且通过多个柔性联接件与第一刚性管段串联联接。 一系列中间管段中最后一个的下端连接到海底位置。 柔性/刚性提升管系统通过允许管道部分相对于彼此的角位移来减小沿着立管传递的弯曲应力。

    Riser tensioner system for use on offshore platforms
    3.
    发明授权
    Riser tensioner system for use on offshore platforms 失效
    立式张紧器系统用于海上平台

    公开(公告)号:US5101905A

    公开(公告)日:1992-04-07

    申请号:US661461

    申请日:1991-02-26

    IPC分类号: E21B19/00 E21B19/09

    CPC分类号: E21B19/006 E21B19/09

    摘要: A riser tensioner system 10 includes a pair of supports 14, 16 affixed to an offshore platform in spaced apart relation to one another. A shaft 24 extends between the supports 14, 16 and is pivotally coupled thereto by an elastomeric bearing 26. A central support 22 is pivotally coupled to the shaft 24 at about the midpoint between the supports 14, 16 and fixedly coupled to coil springs 30 or elastomeric springs 100 coaxially arranged about the shaft 24 and extending between the central support 22 and each of the supports 14, 16. The central support 22 is also coupled to a riser 12 so that relative movement between the offshore platform and the riser 12 causes the central support 22 to pivot on the shaft 24 and wind or unwind the coil springs 30 or elastomeric springs 100 for relative upward and downward movement thereof. A pretensioner mechanism 42 increases the force exerted by the springs 30 or elastomeric springs 100 to increase the upward force applied to the riser 12. In this manner, the riser tensioner system 10 fully supports the riser 12 while allowing relative vertical movement therebetween.

    摘要翻译: 升降机张紧器系统10包括以彼此间隔开的关系固定到海上平台的一对支撑件14,16。 轴24在支撑件14,16之间延伸并且通过弹性体轴承26枢转地联接到其上。中心支撑件22在大约在支撑件14,16之间的中点处枢转地联接到轴24并且固定地联接到螺旋弹簧30或 弹性体弹簧100围绕轴24同轴布置并且在中心支撑件22和每个支撑件14,16之间延伸。中央支撑件22还联接到提升管12,使得海上平台和提升管12之间的相对运动导致 中心支撑件22在轴24上枢转并且卷绕或展开螺旋弹簧30或弹性体弹簧100以使其相对向上和向下移动。 预张紧器机构42增加了弹簧30或弹性体弹簧100施加的力,以增加施加到提升管12的向上的力。以这种方式,提升管张紧器系统10完全支撑提升管12,同时允许提升管12之间相对的垂直运动。

    Load and deflection measurement system for elastomeric bearings
    4.
    发明授权
    Load and deflection measurement system for elastomeric bearings 失效
    弹性轴承负载和偏转测量系统

    公开(公告)号:US5905212A

    公开(公告)日:1999-05-18

    申请号:US868824

    申请日:1997-06-04

    IPC分类号: B63B21/50 F16F1/393 G01L1/04

    CPC分类号: F16F1/393 B63B21/502

    摘要: Force transducers are integrated in an elastomeric flex bearing to provide signals for determining the tension and torque upon a tension member coupled to the bearing and for computation of the azimuth and elevation of the tension member. Preferably the force transducers are mounted to or embedded in an outer metal load ring of the flex bearing and are bonded with the outer metal load ring to the elastomer of the flex bearing. The force transducer, for example, include a diaphragm bonded to the elastomer, and the diaphragm has a diameter in excess of the spacing between the outer metal load ring and the nearest laminated metal reinforcement of the bearing. In one embodiment, metal foil strain gages are bonded to the surface of the diaphragm opposite from the elastomer. In another embodiment, the diaphragm transmits pressure to hydraulic fluid between the diaphragm and the outer metal support ring. A proximity sensor sensing the position of the diaphragm with respect to the outer metal support ring can be used to detect any loss of hydraulic fluid and to calibrate the hydraulic transducer under an unknown load by injecting hydraulic fluid under pressure until the diaphragm assumes a position for which the fluid pressure is indicative of the pressure applied by the elastomer to the diaphragm.

    摘要翻译: 力传感器集成在弹性体柔性轴承中,以提供用于确定联接到轴承的张紧构件上的张力和扭矩的信号,并且用于计算张力构件的方位角和仰角。 优选地,力传感器安装到或嵌入在柔性轴承的外部金属负载环中并且与外部金属负载环结合到柔性轴承的弹性体。 力传感器例如包括结合到弹性体的隔膜,并且隔膜具有超过外金属负载环和轴承的最近层压金属增强件之间的间隔的直径。 在一个实施例中,金属箔应变计结合到与弹性体相对的隔膜的表面上。 在另一个实施例中,隔膜将压力传递到隔膜和外金属支撑环之间的液压流体。 可以使用感测隔膜相对于外金属支撑环的位置的接近传感器来检测液压流体的任何损失,并通过在压力下注入液压流体来校准未知负载下的液压换能器,直到隔膜呈现为 流体压力表示弹性体施加到隔膜上的压力。

    Riser tensioner system for use on offshore platforms using elastomeric
pads or helical metal compression springs
    5.
    发明授权
    Riser tensioner system for use on offshore platforms using elastomeric pads or helical metal compression springs 失效
    提升机张紧器系统,用于使用弹性垫或螺旋金属压缩弹簧的海上平台

    公开(公告)号:US5658095A

    公开(公告)日:1997-08-19

    申请号:US321926

    申请日:1994-10-12

    IPC分类号: E21B19/00 E21B19/09 E02D23/00

    摘要: A riser tensioner system 10 is provided for use on offshore oil drilling platforms to support a riser 12 relative to a floating platform. The riser tensioner system 10 uses either elastomeric pads 32 or helical metal springs 100 as an energy absorbing medium, rather than hydraulic, or pneumatic systems. The elastomeric pads 32 or helical metal springs 100 are maintained in compression within a shock absorber housing 76 by a plunger 70 which is compressed by the weight of the riser 12. If the riser tensioner system 10 is arranged to place the shock absorber 20 in tension, the shock absorber plunger 70 is inverted in the housing 76 to maintain the elastomeric pads 32 or helical metal springs 100 in compression. To achieve varied response characteristics, nested inner and outer elastomeric pads 50, 52 or compression springs 102, 106 are arranged to act together. A varied response characteristic may also be obtained by varying the elastomeric pad modulus or the helical spring constant, or by use of conically shaped elastomeric pads 80.

    摘要翻译: 提供了一种用于海上石油钻井平台的立管张紧器系统10,用于相对于浮动平台支撑提升管12。 提升机张紧器系统10使用弹性垫32或螺旋金属弹簧100作为能量吸收介质,而不是液压或气动系统。 弹性垫32或螺旋金属弹簧100通过由提升管12的重量压缩的柱塞70保持在减震器壳体76内的压缩。如果提升板张紧器系统10布置成将减震器20放置在张力 减震器柱塞70在壳体76中倒转,以保持弹性垫32或螺旋金属弹簧100处于压缩状态。 为了实现各种响应特性,嵌套的内部和外部弹性体垫50,52或压缩弹簧102,106被布置成一起作用。 还可以通过改变弹性体垫模量或螺旋弹簧常数或通过使用锥形弹性垫80来获得不同的响应特性。

    Riser tensioner system for use on offshore platforms using elastomeric
pads or helical metal compression springs
    6.
    发明授权
    Riser tensioner system for use on offshore platforms using elastomeric pads or helical metal compression springs 失效
    提升机张紧器系统,用于使用弹性垫或螺旋金属压缩弹簧的海上平台

    公开(公告)号:US5366324A

    公开(公告)日:1994-11-22

    申请号:US902391

    申请日:1992-06-18

    IPC分类号: E21B19/00 E21B19/09 E02B17/00

    摘要: A riser tensioner system 10 is provided for use on offshore oil drilling platforms to support a riser 12 relative to a floating platform. The riser tensioner system 10 uses either elastomeric pads 32 or helical metal springs 100 as an energy absorbing medium, rather than hydraulic, or pneumatic systems. The elastomeric pads 32 or helical metal springs 100 are maintained in compression within a shock absorber housing 76 by a plunger 70 which is compressed by the weight of the riser 12. If the riser tensioner system 10 is arranged to place the shock absorber 20 in tension, the shock absorber plunger 70 is inverted in the housing 76 to maintain the elastomeric pads 32 or helical metal springs 100 in compression. To achieve varied response characteristics, nested inner and outer elastomeric pads 50, 52 or compression springs 102, 106 are arranged to act together. A varied response characteristic may also be obtained by varying the elastomeric pad modulus or the helical spring constant, or by use of conically shaped elastomeric pads 80.

    摘要翻译: 提供了一种用于海上石油钻井平台的立管张紧器系统10,用于相对于浮动平台支撑提升管12。 提升机张紧器系统10使用弹性垫32或螺旋金属弹簧100作为能量吸收介质,而不是液压或气动系统。 弹性垫32或螺旋金属弹簧100通过由提升管12的重量压缩的柱塞70保持在减震器壳体76内的压缩。如果提升板张紧器系统10布置成将减震器20放置在张力 减震器柱塞70在壳体76中倒转,以保持弹性垫32或螺旋金属弹簧100处于压缩状态。 为了实现各种响应特性,嵌套的内部和外部弹性体垫50,52或压缩弹簧102,106被布置成一起作用。 还可以通过改变弹性体垫模量或螺旋弹簧常数或通过使用锥形弹性垫80来获得不同的响应特性。

    Flexible joint with non-diffusive barrier
    7.
    发明授权
    Flexible joint with non-diffusive barrier 失效
    柔性接头具有非扩散屏障

    公开(公告)号:US5133578A

    公开(公告)日:1992-07-28

    申请号:US666724

    申请日:1991-03-08

    摘要: A flexible joint 13 is employed to sealingly connect a pair of tubular members 16, 18 while still permitting limited articulated movement therebetween. The flexible joint 13 includes a housing 26 with upper and lower ring-like plates 32, 34 coaxially arranged about the tubular members 16, 18. A pair of annular elastomeric bearings 40, 42 are positioned within the housing 26 and act against shoulders 44, 46 of the tubular members 16, 18 to flexibly retain the tubular members 16, 18 within the housing 26. A bellows 20 sealingly couples the tubular members 16, 18 together while permitting movement therebetween. An annular chamber 56 formed between the bellows 20 and housing 26 is filled with a fluid, such as silicon or oil. Means is provided for adjusting the volume of the chamber 56 or volume of fluid in the chamber 56 to maintain an approximately zero pressure differential across the bellows 20.

    摘要翻译: 柔性接头13用于密封地连接一对管状构件16,18,同时仍然允许它们之间的有限的铰接运动。 柔性接头13包括壳体26,壳体26具有围绕管状构件16,18同轴布置的上部和下部环状板32,34。一对环形弹性体轴承40,42定位在壳体26内并且作用于肩部44, 管状构件16,18的一部分,以将管状构件16,18柔性地保持在壳体26内。波纹管20将管状构件16,18密封地连接在一起,同时允许它们之间的移动。 形成在波纹管20和壳体26之间的环形室56填充有诸如硅或油的流体。 提供了用于调节腔室56的体积或腔室56中的流体体积的装置,以保持跨过波纹管20的近似零的压差。

    High temperature flexible pipe joint
    8.
    发明授权
    High temperature flexible pipe joint 有权
    高温柔性管接头

    公开(公告)号:US07341283B2

    公开(公告)日:2008-03-11

    申请号:US10767587

    申请日:2004-01-29

    IPC分类号: F16L51/02 F16L27/10

    摘要: For continuous high temperature operation over a service life in excess of twenty years, a flexible pipe joint includes various features that tend to reduce the temperature of the load-bearing flex element or reduce strain in the warmer elastomeric layers of the flex element. These features include a heat shield of low heat conductivity material integrated into the inner profile of the pipe extension and interposed between the central bore of the pipe joint and the flex element, low heat conductivity metal alloy components between the hot production fluid and the flex element, high temperature resistant elastomer at least in the warmest inner elastomer layer of the flex element, and a flex element constructed to shift strain from the warmer inner elastomer layers to the colder outer elastomer layers by providing greater shear area, different layer thickness, and/or higher elastic modulus elastomer for the warmer inner elastomer layers.

    摘要翻译: 对于超过二十年的使用寿命的连续高温操作,柔性管接头包括倾向于降低承载挠曲元件的温度或减少柔性元件的较暖的弹性层中的应变的各种特征。 这些特征包括集成在管道延伸部的内部轮廓中并且插入在管接头的中心孔和柔性元件之间的低导热性材料的隔热罩,热生产流体和柔性元件之间的低热导率金属合金部件 至少在柔性元件的最热的内部弹性体层中的耐高温弹性体,以及通过提供更大的剪切面积,不同的层厚度和/或粘结材料构造来将应变从较暖的内部弹性体层转移到较冷的外部弹性体层的挠性元件, 或更高的弹性模量弹性体。