公开(公告)号：US08783357B2

公开(公告)日：2014-07-22

申请号：US13220593

申请日：2011-08-29

申请人： Charles Don Coppedge ,  Dana Karl Kelley ,  Charles C. Porter ,  Hildebrand Argie Rumann

发明人： Charles Don Coppedge ,  Dana Karl Kelley ,  Charles C. Porter ,  Hildebrand Argie Rumann

IPC分类号： E21B29/12

CPC分类号： E21B33/038 ,  E21B17/01 ,  E21B29/12 ,  E21B33/00 ,  E21B33/064 ,  E21B2033/005

摘要： A subsea well safing method and apparatus adapted to secure a subsea well in the event of a perceived blowout in a manner to mitigate the environmental damage and the physical damage to the subsea wellhead equipment to promote the ability to reconnect and recover control of the well. The safing assembly is adapted to connect the marine riser to the BOP stack. Pursuant to a safing sequence, the well tubular is secured in the upper and lower safing assemblies and the tubular is then sheared between the locations at which it has been secured. Subsequently, an ejection device is actuated to physically separate the upper safing assembly and connected marine riser from the lower safing assembly that is connected to the BOP stack.

摘要翻译： 一种海底井安全方法和装置，适用于在发生感知井喷事件的情况下固定海底井，以减轻对海底井口设备的环境破坏和物理损坏，以促进重新连接和恢复井的控制能力。 安全组件适于将海洋立管连接到BOP堆叠。 根据安全的顺序，井管被固定在上部和下部安全组件中，然后将管状物在其已经固定的位置之间剪切。 随后，启动排出装置以将上部安全组件和连接的海洋提升器与连接到BOP堆叠的下部安全组件物理分离。