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公开(公告)号：US20120292054A1
公开(公告)日：2012-11-22
申请号：US13542875
申请日：2012-07-06
IPC分类号： E21B33/02
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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公开(公告)号：US20120292036A1
公开(公告)日：2012-11-22
申请号：US13542704
申请日：2012-07-06
IPC分类号： E21B47/001 , E21B47/117
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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公开(公告)号：US20120285697A1
公开(公告)日：2012-11-15
申请号：US13542781
申请日：2012-07-06
IPC分类号： E21B17/01
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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公开(公告)号：US20120267118A1
公开(公告)日：2012-10-25
申请号：US13542734
申请日：2012-07-06
IPC分类号： E21B17/01
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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公开(公告)号：US20120292107A1
公开(公告)日：2012-11-22
申请号：US13542856
申请日：2012-07-06
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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公开(公告)号：US20120273218A1
公开(公告)日：2012-11-01
申请号：US13542892
申请日：2012-07-06
IPC分类号： E21B7/12
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
摘要翻译： 海上通用提升管系统可以包括阀模块，该阀模块选择性地允许和防止流体流过纵向延伸穿过提升管串的流动通道。 锚定装置可以将阀模块可释放地固定在通道中。 构造立管系统的方法可以包括将阀模块安装在通道中的步骤，以及在通道中安装至少一个环形密封模块。 环形密封模块可以防止流体流过提升管柱和定位在通道中的管状串之间的环形空间。 钻井方法可以包括将相对低密度的流体组合物注入到环形空间中，并且选择性地改变限制以流过钻井液返回管线中的海底扼流圈。 提升管串，包括用于各种模块和外部控制系统的壳体的尺寸可以通过旋转台安装。
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公开(公告)号：US20120292106A1
公开(公告)日：2012-11-22
申请号：US13542756
申请日：2012-07-06
IPC分类号： E21B7/12
CPC分类号： E21B17/085 , E21B7/12 , E21B17/01 , E21B21/08 , E21B21/106 , E21B33/02
摘要： An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.
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