Design and application of softer formation tungsten carbide rock bits
Conference
·
· Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:5570927
Life of the tungsten carbide tooth rock bit was greatly increased by the introduction to the industry of the O-ring sealed journal bearing design in 1969. With this development greater emphasis was then placed on cutting structure development. Innovative tooth shape designs and metallurgical improvements have allowed the application of carbide tooth rock bits to be extended into softer and softer formations. Continued bearing development has resulted in more consistent bit performance and a greater tolerance for higher rotary speed. This and the introduction of softer carbide tooth cutting structures have provided the impetus for the industry conversion from steel tooth to carbide tooth rock bits. J22 class bits (IADC Code 5-1-7) have proved to be economical in a wide range of soft formations. Performance from the new J11 class bits (IADC Code 4-3-7) also shows promise of improving the economics of drilling even softer formations. Drilling rates in excess of 100 feet per hour have been obtained in some applications. The design, development, and application of these new products are discussed in this paper.
- Research Organization:
- Hughes Tool Div.
- OSTI ID:
- 5570927
- Report Number(s):
- CONF-830203-
- Conference Information:
- Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: IADC/SPE 11386
- 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
ALLOYS
BEARINGS
CARBIDES
CARBON COMPOUNDS
COMPARATIVE EVALUATIONS
DESIGN
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
NATURAL GAS WELLS
OIL WELLS
PERFORMANCE
RESERVOIR ROCK
ROTARY DRILLS
SEALS
SERVICE LIFE
STEELS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
USES
WELL DRILLING
WELLS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ALLOYS
BEARINGS
CARBIDES
CARBON COMPOUNDS
COMPARATIVE EVALUATIONS
DESIGN
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLS
EQUIPMENT
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
NATURAL GAS WELLS
OIL WELLS
PERFORMANCE
RESERVOIR ROCK
ROTARY DRILLS
SEALS
SERVICE LIFE
STEELS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
USES
WELL DRILLING
WELLS