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81.发明授权
公开(公告)号：US5738034A
公开(公告)日：1998-04-14
申请号：US735682
申请日：1996-10-23
CPC分类号： E21B17/01 , B63B21/502
摘要： The present invention relates to an improved apparatus and method for minimizing vortex induced vibrations and hydrodynamic drag of a drilling riser. Vortex induced vibrations and hydrodynamic drag are minimized by installing on a drilling riser streamlined faring sections. The fairing sections are installed on and removed from a riser through the use of one or more door panels on a rounded front portion that have a latch mechanism which can be easily opened and closed. The fairing sections are configured so they can nest one inside the other for easy storage. A tapered back or tail section of each fairing section has an attachment receptacle for engagement by a handling mechanism with a telescoping arm for grasping the fairing section. The handling mechanism is designed to move the fairing sections between a rack, where they are stored, and a position adjacent to the riser.
摘要翻译： 本发明涉及一种用于最小化钻井立管的涡流引起的振动和流体动力学阻力的改进的装置和方法。 涡旋诱发的振动和流体动力学阻力通过安装在钻井立管流线型的制动段上而被最小化。 通过使用具有可以容易地打开和关闭的闩锁机构的圆形前部上的一个或多个门板，整流罩部分安装在提升管上和从提升器移除。 整流罩部分配置成可以嵌套在另一个内部，便于存放。 每个整流罩部分的锥形后部或尾部具有用于通过操纵机构与用于抓握整流罩部分的伸缩臂接合的附接插座。 处理机构被设计成将整流罩部分移动到存放在其中的架子和与提升管相邻的位置之间。
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公开(公告)号：US5443330A
公开(公告)日：1995-08-22
申请号：US13008
申请日：1993-02-03
申请人： Robert W. Copple
发明人： Robert W. Copple
CPC分类号： E02B17/027 , B63B21/502
摘要： A deep water platform, suitable for use as a hydrocarbon exploration or production facility in very deep offshore waters, and a method of constructing the same are shown. The platform is positioned on top of flexible, buoyant piles made of large diameter, high strength steel tubing. A watertight bulkhead is located within the pile and the portion of the pile below is filled with seawater, while the portion above the bulkhead is substantially empty and in communication with the atmosphere. The bulkhead is positioned to cause the pile to have a predetermined net buoyancy so that the portion below the bulkhead, which is anchored to the seabed, is in tension. Bending members (trusses) are joined to the top of the pile and are connected to a plurality of neutral buoyancy tendons anchored to the sea floor. The tendons may be driven into the sea floor using a pile driver located within the tendons.
摘要翻译： 适用于非常深的近海水域的油气勘探或生产设施的深水平台及其构造方法。 该平台位于由大直径，高强度钢管制成的柔性浮力桩顶部。 水密舱壁位于桩内，下面的堆部分填充有海水，而舱壁上方的部分基本上是空的，并与大气连通。 隔板被定位成使得桩具有预定的净浮力，使得锚固在海床下方的隔板下方的部分处于张紧状态。 弯曲构件（桁架）连接到桩的顶部并且连接到锚定到海底的多个中性浮力腱。 可以使用位于腱内的打桩机将腱推入海底。
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公开(公告)号：US5421676A
公开(公告)日：1995-06-06
申请号：US14690
申请日：1993-02-08
申请人： Pieter G. Wybro , David N. Dunlop
发明人： Pieter G. Wybro , David N. Dunlop
CPC分类号： E21B19/004 , B63B21/502 , B63B9/065 , E21B17/01 , E21B41/08 , E21B43/017 , B63B2021/505 , E02B17/00 , E02B2017/0039 , E02B2017/0043
摘要： A compact offshore tension leg platform having a deck, a hull, and a plurality of elongate tendons securing the hull to an ocean floor foundation provides full well workover and production capabilities for autonomous operation and can be installed and operated in any waterdepth and sustain any environmential loading conditions. The hull supports the well risers of well trees located below the water surface at an elevation in close proximity to the connections of the tendons to the hull. Alternatively the risers and trees may be supported by the deck. A well workover platform, supported by a circular perimeter trackway on the deck may be positioned over any of the well risers for workover operations. Liquid products may be exported from the platform via a seabed pipeline or to a floating tanker moored to a mobile offtake on the deck support column. The hull is configured to minimize loadings in the tendons. All components, except the deck, are installed by a drilling vessel without the need for specialist installation vessels and equipment. The tendons are arranged in groups offset from the hull body to resist platform overturning loadings, and to reduce the tendons pretension required to prevent platform pitch and roll motions. The wells are drilled prior to installation of the hull using a drilling vessel. After installation of the platform, all operations required on the wells are performed autonomously from the platform without the need for another drilling vessel or equipment.
摘要翻译： 紧凑的海上紧张腿部平台，具有甲板，船身和将船体固定在海底基础上的多条细长的钢筋，为自主运行提供了全面的修井和生产能力，可以在任何水深中安装和运行，并维持任何环境 装载条件。 船体支撑位于水面下方的井的井立柱，海拔处靠近腱与船体的连接处。 或者，升降器和树木可以由甲板支撑。 由甲板上的圆形周边轨道支撑的良好的修井平台可以放置在任何井立管上以进行修井操作。 液体产品可以通过海床管线从平台出口到停泊在甲板支撑柱上的移动出口的浮油罐。 船体被配置为最小化腱中的载荷。 除了甲板以外的所有部件均由钻井船安装，无需专业安装船只和设备。 钢筋以与船体相反的方式排列成抵抗平台翻转载荷，并且减少了防止平台俯仰和滚动运动所需的钢筋预张力。 在使用钻井船安装船体之前，钻井。 在安装平台之后，井上所需的所有操作都是从平台自主进行的，而不需要另一个钻井船或设备。
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84.发明授权
公开(公告)号：US5410979A
公开(公告)日：1995-05-02
申请号：US204021
申请日：1994-02-28
申请人： Donald W. Allen , Dean L. Henning
发明人： Donald W. Allen , Dean L. Henning
CPC分类号： B63B21/663 , B63B21/502 , B63B39/005 , E21B17/01 , F15D1/10
摘要： A non-rotatable fairing for suppression of vortex-induced vibration of a marine tubular is provided, the tubular having a circular cross section and a centerline that is normal to the circular cross section, the fairing comprising:shaped sides that extend essentially tangentially from the outer surface of the tubular toward a point that is about a distance equal to the outside diameter of the tubular or less from the centerline of the tubular; anda means to fix the fairing to the tubular so that the fairing cannot rotate around the tubular, wherein the maximum length of the cross section of the combined fairing and tubular is between about 1.25 and about 1.5 times the outside diameter of the tubular.
摘要翻译： 提供了一种用于抑制海洋管状体的涡流引起的振动的不可旋转整流罩，该管状体具有圆形横截面和垂直于圆形横截面的中心线，整流罩包括：成形侧面，其基本上相对于 管状的外表面朝向与管状物的外径相等的距离的点或距离管的中心线更小的点; 以及用于将整流罩固定到管状件的装置，使得整流罩不能围绕管状旋转，其中组合的整流罩和管状物的横截面的最大长度在管的外径的约1.25至约1.5倍之间。
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85.发明授权Mooring apparatus and method of installation for deep water tension leg platform 失效深水张力腿平台的系泊装置及安装方法
公开(公告)号：US5324141A
公开(公告)日：1994-06-28
申请号：US105942
申请日：1987-10-06
CPC分类号： B63B21/502 , Y10T403/7015
摘要： Apparatus for mooring attachment of a floating tension leg platform to a subsea anchorage. The apparatus includes a tendon with an enlarged connector on one end, the connector being formed by a frustoconical bearing surface extending away from the end to which it is connected. A connector shroud partially surrounds the frustoconical surface and is connected to it by an elastomeric bearing. An inwardly sloping surface engages a supplementarily sloped surface formed on the attachment receptacle load ring to increase hoop strength. A side-entry bottom receptacle is also disclosed.
摘要翻译： 用于将浮动张力腿平台附接到海底锚地的装置。 该装置包括在一端具有放大连接器的腱，该连接器由延伸远离其连接端部的截头圆锥体支承表面形成。 连接器护罩部分地围绕截头圆锥形表面并且通过弹性轴承与其连接。 向内倾斜的表面接合形成在附接插座承载环上的辅助倾斜表面以增加箍强度。 还公开了侧入式底部容器。
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公开(公告)号：US5039255A
公开(公告)日：1991-08-13
申请号：US613428
申请日：1990-11-13
申请人： Mamdouh M. Salama
发明人： Mamdouh M. Salama
CPC分类号： B63B21/502 , B63B21/20 , F16G11/00 , Y10T403/32721
摘要： A Kevlar.RTM. rope termination in which the rope is passed through an opening in a tension leg termination, is divided and laid over a rigid pin, being sealed around the pin with a resin. A flexible bearing member is located between the rope covered pin and a rigid support member contiguous with the inside of the termination, adjacent to the opening so that the rope covered pin can easily rotate within the bearing member without kinking the rope.
摘要翻译： 绳索穿过张力腿终端中的开口的Kevlar TM绳索终端被分隔并铺设在刚性销上，用树脂围绕销密封。 柔性轴承构件位于绳索被覆盖的销和刚性支撑构件之间，该刚性支撑构件与终端的内部邻接于开口，使得绳索被覆盖的销可以容易地在轴承构件内旋转，而不会扭转绳索。
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公开(公告)号：US4990030A
公开(公告)日：1991-02-05
申请号：US684779
申请日：1984-12-21
CPC分类号： B63B21/502 , B63B21/20
摘要： A lightweight, high modulus mooring element for a tension leg platform comprises a pretensioned composite member in fixed attachment to and surrounded by a metallic tubular member in compression prestress. The hybrid composite assembly offers significant cost and weight savings over an all steel mooring system for use in deep water tension leg platform mooring.
摘要翻译： 一种用于张力腿平台的轻质，高模量的系泊系统，包括固定在压缩预应力中的金属管状构件固定附接并被其包围的预拉伸复合构件。 混合复合组件相对于用于深水张力腿平台系泊的所有钢制系泊系统而言，显着降低成本和重量。
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公开(公告)号：US4943188A
公开(公告)日：1990-07-24
申请号：US307053
申请日：1989-02-06
申请人： George W. Peppel
发明人： George W. Peppel
IPC分类号： B63B21/50
CPC分类号： B63B21/502 , Y10T403/593
摘要： A rotating lug anchor connector (10) is disclosed for anchoring the tether (12) of tension leg platform (14) to the sea floor. The connector includes an anchor latch assembly (18) which is mounted on the lower end of the tether. The assembly includes a ring (50) from which three lugs (58) extend. The ring is secured to the tether through an elastomeric assembly (36) which permits the tether to pivot about a pivot point (28) relative to the ring. Guide surfaces on members (74, 76, 78) of the receptacle assembly (20) guide the lugs downward along vertical slots (104) and beneath notches (92) in the members. Upward movement of the tether engages the lugs and notches to secure the tether to the sea floor. For release the tether is lowered to move the lugs in an alignment with the vertical slots for removal.
摘要翻译： 公开了用于将张力腿平台（14）的系绳（12）锚定到海底的旋转凸耳锚固连接器（10）。 连接器包括安装在系绳下端的锚定闩锁组件（18）。 组件包括环（50），三个凸耳（58）从该环延伸。 环通过弹性体组件（36）固定到系绳，弹性体组件允许系绳相对于环绕枢轴点（28）枢转。 插座组件（20）的构件（74,76,78）上的引导表面沿着构件中的竖直狭槽（104）和凹口（92）向下引导凸耳。 系绳的向上运动接合凸耳和凹口以将系绳固定到海底。 为了释放，将系绳降低以使凸耳与垂直槽对齐以移除。
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公开(公告)号：US4938630A
公开(公告)日：1990-07-03
申请号：US235136
申请日：1988-08-22
申请人： Demir I. Karsan , Zeki Demirbilek
发明人： Demir I. Karsan , Zeki Demirbilek
CPC分类号： B63B21/502 , B63B1/107 , B63B21/50 , B63B39/02 , B63B2001/128
摘要： Method and apparatus to stabilize a columnar platform for deepwater offshore applications. An added mass stabilizer system is utilized to control first order heave, pitch, roll, surge and sway motions of the floating platform. The stabilizer is suspended beneath the platform by a set of tendons a sufficient distance to (1) enter a quiescent zone beneath the action of waves and currents, (2) provide a sufficiently long movement arm to resist pitch and roll torquing, and (3) incorporate sufficient flexibility into the suspension system to avoid shock loads. The stabilizer is sized to (a) provide sufficient submerged weight to maintain the tendons in constant tension and, (b) create adequate added mass (actual stabilizer weight plus mass of water moved by the stabilizer) to provide the desired control of first order motions. A secondary mooring system such as a spring-buoy mooring or dynamic positioning system can be provided to control drift produced by higher order motions and first order yaw.
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公开(公告)号：US4913591A
公开(公告)日：1990-04-03
申请号：US258466
申请日：1988-10-17
申请人： James E. Steele
发明人： James E. Steele
IPC分类号： B63B21/50
CPC分类号： B63B21/502
摘要： A mobile marine drilling assembly has a horizontally disposed pontoon which floats on or is submerged below the surface of a marine environment. A first vertically disposed column is secured to the pontoon and extends upwardly therefrom. A work platform has an opening through which the column extends, and the platform overlies the pontoon and is vertically movable relative thereto along the column. A jack system is operably connected with the work platform and with the column for jacking the work platform along the column between a first position wherein the pontoon floats on the surface of the marine environment and a second position wherein the pontoon is disposed a substantial distance below the surface of the marine environment. An anchor is secured to the floor of the marine environment. A plurality of resilient tendons extend between and are secured to the pontoon and the anchor, and the tendons are under tension when the pontoon is in the second position so that wave and current induced horizontal movement of the pontoon and thereby of the column and the work platform is permitted, and vertical movement is resisted.
摘要翻译： 移动式海洋钻井组件具有水平布置的浮筒，其浮在水下环境的表面上或浸没在水下。 第一垂直设置的柱固定到浮筒并从其向上延伸。 工作平台具有柱延伸的开口，并且平台位于浮筒上，并且可相对于该柱垂直移动。 千斤顶系统与工作平台可操作地连接，并且具有柱，用于在第一位置和第二位置之间沿着柱顶升起工作平台，第一位置浮在浮动在海洋环境的表面上的第二位置和第二位置，其中浮筒设置在相当远的距离处 海洋环境的表面。 锚固件固定在海洋环境的地板上。 多个弹性钢筋在浮筒和锚固件之间延伸并固定到浮筒和锚固件上，并且当浮筒处于第二位置时，钢筋处于张力下，使得波浪和电流引起浮筒的水平运动，从而导致柱体和工作台的水平运动 允许平台，并且抵抗垂直运动。
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