EMBEDDED MULTI-STRING WELL HEAD SHEAR
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United States of America Patent
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Issued Date -
Apr 21, 2011
app pub date -
Oct 15, 2010
filing date -
Oct 15, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present disclosure generally provides apparatus and methods for removing a subsea well head. The apparatus may include an embedded shear comprising a pile and a shear cutter integrated into the pile. The shear cutter may be mounted within the pile near a lower end thereof. The pile may include a well head conductor receptacle adapted to receive a subsea well head, and the shear cutter may include a shear blade that extends across the well head conductor receptacle when activated.The method may include providing a pile with a shear cutter integrated therein, lowering the pile over the well head, pumping water out of the pile to drive the pile into the seafloor to a desired cutting depth, activating the shear cutter to cut off a portion of the well head, and pumping water into the pile to drive the pile out of the seafloor.
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