Effects of thermal and mechanical loading on PDC bit life

Conference · Sat Sep 01 04:00:00 EDT 1984 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6277451

Glowka, D A; Stone, C M

The results of numerical analyses conducted to determine the effects of thermal and mechanical loading on the integrity of polycrystalline diamond compact (PDC) cutters during deep hole drilling are presented. Cutter temperature distributions for several drilling environments are combined with appropriate mechanical cutting loads to predict stress distributions for the study of cutter wear mechanisms. A discussion of wear mechanisms acting on the cutting structure is presented. Suggestions are presented, based on these analyses, for the operation of PDC bits to increase bit life in hard, abrasive rock drilling. Microstructural design considerations for the cemented carbide that supports the diamond layer are also discussed.

• Research Organization: Sandia National Laboratory
• OSTI ID: 6277451
• Report Number(s): CONF-8409104-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE13257
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBIDES
CARBON
CARBON COMPOUNDS
CRYSTAL STRUCTURE
CRYSTALS
DIAMONDS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DYNAMIC LOADS
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
MECHANICS
MICROSTRUCTURE
MINERALS
NONMETALS
POLYCRYSTALS
ROCK MECHANICS
SERVICE LIFE
STRESSES
TEMPERATURE EFFECTS
WEAR
WELL DRILLING