Effects of size on three-cone bit performance in laboratory drilled shale

Conference · Wed Sep 01 04:00:00 EDT 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5357143

Black, A D; DiBona, B G; Sandstrom, J L; Tibbitts, G A

The effects of size on the performance of 3-cone bits were measured during laboratory drilling tests in shale at simulated downhole conditions. Four Reed HP-SM 3-cone bits with diameters of 6 1/2, 7 7/8, 9 1/2 and 11 inches were used to drill Mancos shale with water-based mud. The tests were conducted at constant borehole pressure, two conditions of hydraulic horsepower per square inch of bit area, three conditions of rotary speed and four conditions of weight-on-bit per inch of bit diameter. The resulting penetration rates and torques were measured. Statistical techniques were used to analyze the data.

• Research Organization: Drilling Research Laboratory Inc.
• OSTI ID: 5357143
• Report Number(s): CONF-820927-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE11231
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
BENCH-SCALE EXPERIMENTS
CONES
DIMENSIONS
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUIDS
MATHEMATICS
PERFORMANCE TESTING
RESERVOIR PRESSURE
ROCKS
SEDIMENTARY ROCKS
SHALES
STATISTICS
TESTING
WELL PRESSURE