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Insert for a drilling tool bit and a method of drilling therewith

Patent ·
OSTI ID:5837000
;
A method is described of drilling a hole in a hard material such as rock, coal, masonry, concrete, and the like comprising: positioning a drilling tool having a drilling tool bit insert comprising a shaped substrate formed of a hard, fracture resistant material and coated with one or more thin adherent layers of refractory coating material. The material of each layer comprises a composition independently selected from the group consisting of carbides, nitrides, and carbonitrides of titanium, hafnium, vanadium, tantalum, and niobium, and oxides of aluminum and zirconium, and mixtures and solid solutions thereof; rotating the drilling tool bit insert at a sufficient rate and applying the sufficient thrust to the drilling tool bit insert to drill the hole in the hard material.
Assignee:
GTE Laboratories Inc., Waltham, MA
Patent Number(s):
US 4696352
OSTI ID:
5837000
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
ANGULAR VELOCITY
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL COMPOSITION
COATINGS
DESIGN
DISPERSIONS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
FRACTURE PROPERTIES
HAFNIUM CARBIDES
HAFNIUM COMPOUNDS
HAFNIUM NITRIDES
MECHANICAL PROPERTIES
MIXTURES
NATURAL GAS WELLS
NIOBIUM CARBIDES
NIOBIUM COMPOUNDS
NIOBIUM NITRIDES
NITRIDES
NITROGEN COMPOUNDS
OIL WELLS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
POSITIONING
PROTECTIVE COATINGS
REFRACTORIES
REFRACTORY METAL COMPOUNDS
ROCK DRILLING
ROTARY DRILLING
ROTARY DRILLS
SOLID SOLUTIONS
SOLUTIONS
TANTALUM CARBIDES
TANTALUM COMPOUNDS
TANTALUM NITRIDES
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
VANADIUM CARBIDES
VANADIUM COMPOUNDS
VANADIUM NITRIDES
VELOCITY
WELLS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES