High energy tubular shear

摘要

A high energy tubular shear is connectable within a drilling system and includes a body forming a bore through which a tubular is disposed, a cross-bore intersecting the bore, opposing cutters moveably positioned in the cross-bore on opposite sides of the bore, and the each cutter in hydraulic communication with a respective hydraulic intensifier.

主权项

1. A subsea well system, comprising:
a safing assembly connector interconnecting a lower safing assembly to an upper safing assembly, the lower safing assembly connected to a blowout preventer stack on a subsea well and the upper safing assembly connected to a marine riser; the lower safing assembly comprising lower slips to engage a tubular suspended in a bore formed through the lower and the upper safing assemblies; the upper safing assembly comprising upper slips operable to engage the tubular; and a tubular shear positioned between the upper slips and the lower slips, the tubular shear comprising:
a body forming the bore through which the tubular is disposed and a cross-bore intersecting the bore;opposing cutters moveably positioned in the cross-bore on opposite sides of the bore;laterally spaced apart opposing backing plates located in the cross-bore and extending across the bore, wherein the opposing cutters are positioned between the opposing backing plates; andthe each cutter in hydraulic communication with a respective hydraulic intensifier.