Drill bit with shrouded cutter

Patent · Tue Dec 30 04:00:00 EST 1986

OSTI ID:6901285

Dennis, M

This patent describes a cutting element positionable by interference fit in a recess of a drill bit body, the cutting element comprising: a stud having a cylindrical side surface and an angularly oriented supporting surface disposed at a forward end of the stud. The supporting surface is oriented at an acute angle relative to a longitudinal axis of the stud and intersecting the side surface, a circular disc-shaped cutting element bonded to the supporting surface and comprising a carbide layer having a cutting surface thereon of polycrystalline diamond. The cutting element includes a cylindrical peripheral surface, and a separate reinforcing shroud bonded to the supporting surface behind the disc-shaped element. The shroud includes a contact face engaging the peripheral surface of the disc-shaped element, and a cylindrical side surface is arranged flush with the side surface of the stud to define a continuation thereof.

• Assignee: Strata Bit Corp., Houston, TX
• Patent Number(s): US 4632196
• OSTI ID: 6901285
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CARBIDES
CARBON
CARBON COMPOUNDS
CRYSTALS
CUTTING TOOLS
DESIGN
DIAMONDS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
INCIDENCE ANGLE
MATERIALS
MECHANICAL STRUCTURES
MINERALS
NATURAL GAS WELLS
NONMETALS
OIL WELLS
ORIENTATION
POLYCRYSTALS
POSITIONING
REINFORCED MATERIALS
SUPPORTS
TOOLS
WELL DRILLING
WELLS