发明名称 |
SYSTEM AND METHOD FOR RAIALLY EXPANDING A TUBULAR ELEMENT COMPRISING AN EMERGENCY BLOW-OUT PREVENTER |
摘要 |
The invention provides a system for lining a wellbore, and a method for using said system. The system comprises: a drill string (20) for drilling the wellbore; an expandable tubular element (4) enclosing the drill string, wherein a lower end portion of a wall of the expandable tubular element is bent (14) radially outward and in axially reverse direction to define an expanded tubular section (10) extending around an unexpanded tubular section (8); a pushing device (50) for pushing the unexpanded section into the expanded tubular section; a blow-out preventer (302) for closing off the wellbore in case of an emergency. Herein the blow-out preventer encloses the unexpanded tubular section and comprises a cutter (320) for cutting the unexpanded tubular section and at least one closure device (324) for closing the wellbore.
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申请公布号 |
US2013220639(A1) |
申请公布日期 |
2013.08.29 |
申请号 |
US201113883238 |
申请日期 |
2011.11.04 |
申请人 |
DALLA LONGA FRANCESCO;KRIESELS PETRUS CORNELIS |
发明人 |
DALLA LONGA FRANCESCO;KRIESELS PETRUS CORNELIS |
分类号 |
E21B43/10;E21B33/06 |
主分类号 |
E21B43/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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