公开(公告)号：WO2017095551A1

公开(公告)日：2017-06-08

申请号：PCT/US2016/058380

申请日：2016-10-24

Applicant: SEAHORSE EQUIPMENT CORP.

Inventor： PRICHARD, Thomas ,  SALEM, Amir

IPC: E21B17/01 ,  E21B17/12 ,  E21B19/00 ,  F16L27/08

CPC classification number: E21B19/004 ,  E21B17/01 ,  E21B17/085

Abstract: A removable riser hang-off connector is equipped with a flexible element that, in one embodiment, comprises rubber-encapsulated steel plates. The connector is designed for attachment to a hang-off collar provided on a steel catenary riser below the tapered stress joint or flex joint. Connection of the removable riser hang-off connector may be made by an ROV. With the removable riser hang-off connector attached, the tapered stress joint and/or flex joint may be raised out of the water (for inspection, maintenance, repair or replacement) by lifting the upper end of the SCR out of its porch receptacle with a chain jack (or other lifting device) and inserting the removable riser hang-off connector into the porch receptacle. This temporarily supports the SCR in an elevated state with the tapered stress joint and/or flex joint above the surface of the water.

Abstract translation: 可拆卸立管悬挂连接器配备有柔性元件，在一个实施例中，柔性元件包括橡胶封装的钢板。 该连接器设计用于连接到设置在锥形应力接头或挠性接头下方的钢悬链线立管上的悬挂环。 可拆卸立管悬挂连接器的连接可以由ROV进行。 通过连接可拆卸的立管悬挂连接器，通过将SCR的上端从其门廊插座中提出来，可以将锥形应力接头和/或挠性接头从水中抬起（用于检查，维护，修理或更换） 链条千斤顶（或其他提升装置）并将可拆卸立管悬挂连接器插入门廊插座。 这暂时支撑处于升高状态的SCR，并且锥形应力接头和/或挠性接头位于水面之上。

公开(公告)号：WO2014172291A1

公开(公告)日：2014-10-23

申请号：PCT/US2014/034044

申请日：2014-04-14

Applicant: SEAHORSE EQUIPMENT CORP

Inventor： OTTEN, Jeffrey, Douglas ,  CAO, Peimin ,  PRICHARD, Thomas

IPC: B63B21/50

CPC classification number: E21B19/002

Abstract: A top-tensioned riser system comprises a substantially vertical riser extending upward from the seafloor; a conductor surrounding an upper portion of the riser in spaced-apart relation; a coaxial keel guide surrounding a lower portion of the conductor; a tensioner attached to the conductor and the riser; a keel guide support structure attached to the keel guide and connected to the keel of a dry-tree, semi-submersible vessel; and, a keel joint centralizer attached to the riser proximate the keel guide and sized to prevent radial movement of the riser relative to the conductor. Side loads on the riser (such as those arising from displacement of the vessel from its nominal position or currents acting on the riser) are reacted from the riser to the conductor via the keel joint centralizer and thence to the keel of the vessel via the keel guide.

Abstract translation: 顶部张紧的立管系统包括从海底向上延伸的基本垂直的提升管; 围绕提升管的上部的间隔开的关系的导体; 围绕导体的下部的同轴龙骨引导件; 连接到导体和立管的张紧器; 龙骨引导支撑结构，其附接到龙骨引导件并连接到干树半潜式船舶的龙骨; 以及靠近龙骨引导件附接到提升管的龙骨关节扶正器，其尺寸设定成防止立管相对于导体的径向运动。 提升管上的侧向负载（例如由容器从其标称位置或作用在提升管上的电流引起的负载）通过龙骨接头中心器从上升管引导到导体，然后通过龙骨反应到容器的龙骨 指南。