Proper nozzle location, bit profile, and cutter arrangement affect PDC-bit performance significantly

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · SPE Drilling and Completion (Society of Petroleum Engineers); (United States)

DOI:https://doi.org/10.2118/20415-PA· OSTI ID:7090416

Garcia-Gavito, D; Azar, J J

During the past 20 years, the drilling industry has looked to new technology to halt the exponentially increasing costs of drilling oil, gas, and geothermal wells. This technology includes bit design innovations to improve overall drilling performance and reduce drilling costs. These innovations include development of drag bits that use PDC cutters, also called PDC bits, to drill long, continuous intervals of soft to medium-hard formations more economically than conventional three-cone roller-cone bits. The cost advantage is the result of higher rates of penetration (ROP's) and longer bit life obtained with the PDC bits. An experimental study comparing the effects of polycrystalline-diamond-compact (PDC)-bit design features on the dynamic pressure distribution at the bit/rock interface was conducted on a full-scale drilling rig. Results showed that nozzle location, bit profile, and cutter arrangement are significant factors in PDC-bit performance.

• OSTI ID: 7090416
• Journal Information: SPE Drilling and Completion (Society of Petroleum Engineers); (United States), Vol. 9:3; ISSN 1064-6671
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
DRILL BITS
DESIGN
PERFORMANCE
NATURAL GAS WELLS
WELL DRILLING
OIL WELLS
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
422000 - Engineering- Mining & Underground Engineering- (1980-)