Method for renewing the cutting face of a diamond drill bit

Patent · Tue Apr 07 04:00:00 EDT 1987

OSTI ID:6570631

Davis, K

This patent describes a diamond drill bit having a formation engaging face and diamond cutter stud assemblies, each stud assembly is mounted in a counterbore at the face for penetrating the earth. The method is described of increasing the cutting efficiency of the bit comprises: (1) forming a passageway which extends from the bottom of the counterbore and to an external location on the bit, the external location being spaced from an outer end of the counterbore; (2) forcing a stud assembly to move out of a counterbore by applying fluid pressure to the passageway connected to the last counterbore; (3) rotating the last stud assembly about the longitudinal axis thereof to present an unused cutting area of the diamond cutter stud assembly in properly oriented position for engaging a formation; (4) forcing the stud assembly into operative seated position within the counterbore by connecting a hydraulic piston and cylinder assembly to the drill bit body and stud assembly and forcing the stud assembly to move into the bit body as the piston moves respective to the cylinder.

• Assignee: W. Wesley Perry, Midland, TX
• Patent Number(s): US 4654948
• OSTI ID: 6570631
• 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)
CARBON
CYLINDERS
DESIGN
DIAMONDS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
EFFICIENCY
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
FLUID MECHANICS
HYDRAULIC EQUIPMENT
MECHANICAL EFFICIENCY
MECHANICS
MINERALS
MOTION
NATURAL GAS WELLS
NONMETALS
OIL WELLS
PISTONS
PRESSURE EFFECTS
ROTATION
WELL DRILLING
WELLS