Shear rams for hydrogen sulfide service
Patent
·
OSTI ID:5130946
Shear rams shearing drill pipe passing through with blowout preventers encountering hydrogen sulfide are disclosed. The ram bodies are formed of an alloy having an upper hardness level of about Rc22 and the shearing blade and drill string engaging surfaces of the rams are hardfaced with a layer of nickel-based alloys, cobalt-based alloys, and tungsten-based alloys hard enough to shear the drill pipe. The layer of alloy is thin enough to avoid peeling off in use and warping the ram bodies when being welded to them. A number of embodiments and examples of the invention is disclosed.
- Assignee:
- Rucker Co.
- Patent Number(s):
- US 4081027
- OSTI ID:
- 5130946
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BLOWOUT PREVENTERS
CHALCOGENIDES
CLOSURES
CONTROL
CUTTING TOOLS
DECOMMISSIONING
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
ELEMENTS
EQUIPMENT
HARDNESS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MECHANICAL PROPERTIES
METALS
OIL WELLS
REFRACTORY METALS
SHEAR
SULFIDES
SULFUR COMPOUNDS
TOOLS
WELLS
020300* -- Petroleum-- Drilling & Production
BLOWOUT PREVENTERS
CHALCOGENIDES
CLOSURES
CONTROL
CUTTING TOOLS
DECOMMISSIONING
DESIGN
DRILL PIPES
DRILLING EQUIPMENT
ELEMENTS
EQUIPMENT
HARDNESS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MECHANICAL PROPERTIES
METALS
OIL WELLS
REFRACTORY METALS
SHEAR
SULFIDES
SULFUR COMPOUNDS
TOOLS
WELLS