Wells – Means for perforating – weakening – bending or separating pipe... – With disparate below ground feature
Patent
1999-08-30
2000-12-12
Tsay, Frank
Wells
Means for perforating, weakening, bending or separating pipe...
With disparate below ground feature
166297, 251 13, E21B 2908, E21B 3306
Patent
active
06158505&
ABSTRACT:
A blade seal for a shearing blind ram designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. The blowout preventer has a body with an axial bore, a pair of opposing bonnet assemblies and a pair of opposing rams laterally moveable within the bonnet assemblies by a pressurized fluid source to control flow of well fluids through the blowout preventer body axial bore. The blade seal includes a generally planar shaped central member that tapers from one end to the other and is constructed of rubber. A pair of metal caps are bonded to the lateral edges of the blade seal to aid in preventing extrusion. The lower face of the rubber central member includes a groove adjacent to the metal cap to aid in preventing extrusion of the rubber. A pair of the blade seals is used in the upper ram of the shearing blind ram assembly. The opposing lower ram has a upwardly facing surface that seals against the pair of blade seals after the pipe is sheared.
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Cooper Cameron Corp., BOP Replacement Parts Catalog, Jul. 1998, p. 41, "T BOP Shearing Blind Rams ".
Cooper Oil Tool Division, Cooper Industries; Engineering Bulletin Errata Sheet, EB 700 D, Rev. E1; Jun. 23, 1995; p. 6, Figure 1, "DS Shearing Blind Ram".
Cooper Cameron Corporation
Duke Jackie Lee
Tsay Frank
LandOfFree
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