公开(公告)号：US06220787B1

公开(公告)日：2001-04-24

申请号：US09154107

申请日：1998-09-16

申请人： Akio Tanabe ,  John Randolph Paulling

发明人： Akio Tanabe ,  John Randolph Paulling

IPC分类号： E21D1100

CPC分类号： B63B35/44 ,  B63B2035/4426 ,  B63B2035/448 ,  E21B33/035 ,  E21B43/01

摘要： A ship type floating oil production system for access to subsea wells through installation of surface wellheads on a ship type surface vessel on the sea comprises a cylindrical turret moored to a seabed is located within a moon pool formed in the ship type surface vessel such that the ship type surface vessel is freely rotatable about the cylindrical turret. A plurality of riser pipes have a rigid structure and extend downward to subsea wells through the cylindrical turret, and each riser pipe is provided at its top portion with a surface wellhead including valves of the riser pipe. Accordingly, workover operations can be facilitated as needed by running workover tools through the surface wellhead of the corresponding riser pipe through use of a work-over-rig installed on the ship type surface vessel.

摘要翻译： 一种用于通过在海上的船型表面船上安装表面井口进入海底井的船型浮油生产系统包括：系泊在海底的圆柱形塔架位于船型表面船形成的月球池内，使得 船型表面容器可绕圆柱形转台自由旋转。 多个提升管具有刚性结构并且通过圆柱形转台向下延伸到海底井，并且每个提升管在其顶部设置有包括提升管的阀的表面井口。 因此，通过使用安装在船型表面船上的上料机，通过运行修井工具通过相应提升管的表面井口，可以促进修井作业。