A Methodology Using Laboratory Experiments and Numerical Modeling To Optimize Roller Cone Bits Hydraulics

King, Isabelle; Wells, M.R.; Pessier, R.C.; Besson, Alain

doi:10.2523/28315-ms

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Bottom Hole Fluid Pressure Measurements1

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1999

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“…In reality, however, this may not be the case as King et al 19 postulate. In reality, however, this may not be the case as King et al 19 postulate.…”

Section: Bottom Hole Fluid Pressure Measurementsmentioning

confidence: 93%

Optimization of Slimhole Dual-Body Bits by Experiments and Computational Fluid Dynamics

Sousa

Prohaska

Bencic

et al. 1999

SPE Western Regional Meeting

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThis paper presents a detailed study on the optimization of slim-hole dual-body bits made in-house for use in Coring-While-Drilling (CWD). Investigations consisted of extensive coring and drilling laboratory tests in soft, medium and hard rocks. In addition, an apparatus was designed and built to investigate the effect of the rotary speeds on the pressure distribution underneath the bits. To calibrate the experimental work, Computational Fluid Dynamics (CFD) techniques were used to investigate the flow characteristics of the bits.

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“…In reality, however, this may not be the case as King et al 19 postulate. In reality, however, this may not be the case as King et al 19 postulate.…”

Section: Bottom Hole Fluid Pressure Measurementsmentioning

confidence: 93%