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公开(公告)号：US20150159467A1
公开(公告)日：2015-06-11
申请号：US14399464
申请日：2013-05-06
申请人： SHELL OIL COMPANY
CPC分类号： E21B33/14 , E21B7/20 , E21B21/00 , E21B34/06 , E21B43/103
摘要： The invention provides a method and a system for sealing an annulus enclosing a tubular element in a wellbore. The method comprises the steps of introducing a first drilling fluid in the wellbore; drilling an open hole section of the wellbore using a drilling tool suspended at the end of a drill string; replacing the drilling fluid with a sealing fluid; extending the tubular element into the open hole section of the wellbore; and flushing part of the sealing fluid out of the wellbore, leaving an annulus between the tubular element and a wellbore wall filled with a layer of sealing fluid. The aforementioned steps may be repeated as required.
摘要翻译： 本发明提供一种用于密封围绕井筒中的管状元件的环的方法和系统。 该方法包括以下步骤：在井眼中引入第一钻井流体; 使用悬挂在钻柱末端的钻孔工具钻井孔的开孔部分; 用密封液代替钻井液; 将所述管状元件延伸到所述井眼的开孔部分中; 并将密封流体的一部分冲洗出井筒，在管状元件和填充有一层密封流体的井筒壁之间留下环形空间。 可以根据需要重复上述步骤。
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公开(公告)号：US09482070B2
公开(公告)日：2016-11-01
申请号：US14399464
申请日：2013-05-06
申请人： SHELL OIL COMPANY
CPC分类号： E21B33/14 , E21B7/20 , E21B21/00 , E21B34/06 , E21B43/103
摘要： The invention provides a method and a system for sealing an annulus enclosing a tubular element in a wellbore. The method comprises the steps of introducing a first drilling fluid in the wellbore; drilling an open hole section of the wellbore using a drilling tool suspended at the end of a drill string; replacing the drilling fluid with a sealing fluid; extending the tubular element into the open hole section of the wellbore; and flushing part of the sealing fluid out of the wellbore, leaving an annulus between the tubular element and a wellbore wall filled with a layer of sealing fluid. The aforementioned steps may be repeated as required.
摘要翻译： 本发明提供一种用于密封围绕井筒中的管状元件的环的方法和系统。 该方法包括以下步骤：在井眼中引入第一钻井流体; 使用悬挂在钻柱末端的钻孔工具钻井孔的开孔部分; 用密封液代替钻井液; 将所述管状元件延伸到所述井眼的开孔部分中; 并将密封流体的一部分冲洗出井筒，在管状元件和填充有一层密封流体的井筒壁之间留下环形空间。 可以根据需要重复上述步骤。
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