Generalized drag coefficient applicable for all flow regimes

Journal Article · Mon May 26 04:00:00 EDT 1986 · Oil Gas J.; (United States)

OSTI ID:5516971

Meyer, B R

A generalized drag coefficient correlation for particulate settling in power-law-type fluids is applicable for all flow regimes from Stokes' (laminar) to Newton's flow (turbulence). The major advantage of this correlation for hydrocarbon reservoirs is that it correctly asymptotes to a modified Stokes' law (viscous effects) at low Reynolds value (Re) numbers and to the turbulent drag coefficient C/sub D/ approx. = 0.44 at large values of Re (inertia dominance). The use of Stokes' law can greatly underestimate the drag coefficient and grossly overestimate the terminal settling velocity at large Re. In many respects, this article is a review and extension of drag coefficient correlations used in hydraulic fracturing on particulate settling in Newtonian and non-Newtonian fluids. Since most non-Newtonian correlations are for creeping flow (Re' < 0.1), the major emphasis will be to extend these correlations to Newton's flow. A comparison with experimental data and empirical correlations of other investigators is included to verify the validity and applicability of the extended correlation.

• Research Organization: Meyer and Associates Inc., Natrona Heights, PA
• OSTI ID: 5516971
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 84:21; ISSN OIGJA
• Country of Publication: United States
• Language: English

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COMMINUTION
CORRELATIONS
DATA ANALYSIS
DRAG
ENERGY SOURCES
ENHANCED RECOVERY
FLOW MODELS
FLUID FLOW
FLUIDS
FOSSIL FUELS
FRACTURING
FUEL GAS
FUELS
GAS FUELS
GASES
HYDRAULIC FRACTURING
LAMINAR FLOW
MATHEMATICAL MODELS
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
PARTICLES
PARTICULATES
PETROLEUM
RECOVERY
REYNOLDS NUMBER
SEDIMENTATION
STIMULATION
STOKES LAW
TURBULENT FLOW
VELOCITY
VISCOUS FLOW
WELL STIMULATION
WELLS