Results 211 to 220 of about 3,213 (251)

Relationship of Core-Scale Heterogeneity With Non-Darcy Flow Coefficients

SPE Formation Evaluation, 1996
Summary An experimental research program to investigate the effects of liquid saturations upon non-Darcy flow coefficients is presented. The presence of a wetting phase fluid plays an important role in high velocity flow of a gas well, producing condensate or water, and in propped fractures containing liquid saturations ...
M. H. Al-Rumhy, M. Z. Kalam
openaire   +1 more source

Measurement and correlation of non-Darcy flow coefficient in consolidated porous media

Journal of Petroleum Science and Engineering, 1989
For many years Darcy's law has been used as the basic equation which describes the flow of fluids through porous media. Darcy's equation is an empirical expression which fails to predict the pressure gradient for high-velocity flow through porous material.
M. Tiss, R.D. Evans
openaire   +1 more source

Non-Darcy Flow Coefficients and Relative Permeabilities for Gas/Brine Systems

SPE Gas Technology Symposium, 1991
ABSTRACT A method for calculating the effective non-Darcy flow coefficient and relative permeabilities for gas/brine systems is presented. The capillary pressure is considered to account for the end-effect. This method is applicable to linear displacement in laboratory cores.
F. Civan, R.D. Evans
openaire   +1 more source

Laboratory measurements of non-Darcy flow coefficients in natural and artificial unconsolidated porous media

Journal of Petroleum Science and Engineering, 2011
Abstract The estimation of non-Darcy flow regime is often a critical issue in petroleum engineering, as it is a key parameter to estimate and predict the correct production performances and behavior of hydrocarbon reservoirs. Non-Darcy flow is typically observed in gas wells when the fluids converging to the wellbore attains the velocity peculiar of ...
MACINI, PAOLO, MESINI, EZIO, R. Viola
openaire   +2 more sources

Estimating Non-Darcy Flow Coefficient from Buildup Test Data With Wellbore Storage

Proceedings of SPE Annual Technical Conference and Exhibition, 2002
Abstract An algorithm has been developed for computing the pressure response for a well with constant wellbore storage and non-Darcy skin factor across the completion. The algorithm has been used to generate type curves for drawdown and buildup tests.
J. P. Spivey, K. G. Brown, W. K. Sawyer, J. H. Frantz   +3 more
openaire   +1 more source

New Correlations To Predict Non-Darcy Flow Coefficients at Immobile and Mobile Water Saturation

SPE Annual Technical Conference and Exhibition, 1994
Abstract Several empirical correlations were developed relating the inertial, sometimes called the non-Darcy flow, coefficient (β) to permeability, porosity and water saturation. The correlations were developed using 407 data points taken on 24 cores over confining stress which was varied from 1000 psi to 5000 psi. The permeability range
Frederick D.C., R.M. Graves
openaire   +1 more source

Pressure drop and fractal non-Darcy coefficient model for fluid flow through porous media

Journal of Petroleum Science and Engineering, 2020
Abstract Pressure drop loss of fluid flow through porous media is a key issue in many science fields. It has been shown that the non-Darcy coefficient plays a major role in the determination of pressure drop loss. However, the existing prediction models of the non-Darcy coefficient are very divergent, thus requiring to be improved.
Ting Huang, Pengbin Du, Xinkai Peng, Peng Wang, Gaofeng Zou   +4 more
openaire   +1 more source

The Effect of an Immobile Liquid Saturation on the Non-Darcy Flow Coefficient in Porous Media

SPE Production Engineering, 1987
Summary The results of an experimental research program to investigate the effects of immobile liquid saturations on the non-Darcy flow coefficient are presented. Sandstone cores of absolute permeabilities ranging from 50 to 800 md were used to investigate non-Darcy flow phenomena under multiphase conditions.
R. D. Evans, C. S. Hudson, J. E. Greenlee   +2 more
openaire   +1 more source

FRACTAL TREELIKE FRACTURE NETWORK MODEL FOR HYDRAULICALLY AND MECHANICALLY INDUCED DYNAMIC CHANGES IN THE NON-DARCY COEFFICIENT DURING THE PROCESS OF MINE WATER INRUSH FROM COLLAPSED COLUMNS

Fractals, 2021
An accurate and reliable mathematical model for water inrush can help ensure operational safety in coal mines. In this study, a numerical model for water inrush caused by collapsed columns that couples mechanical rock deformation with flow in porous media based on a fractal treelike fracture network was developed.
JIYUAN ZHAO, WEITAO LIU, JIANJUN SHEN, MINGHAN XU, AGUS P. SASMITO   +4 more
openaire   +1 more source

Investigation of Compaction and Sand Migration Effect on Permeability and Non-Darcy Coefficient With Pore-Scale Simulations

Volume 10: Petroleum Technology, 2015
Compaction and sand migration are some of the main problems for the loosely consolidated and unconsolidated high rate gas reservoirs. A reliable estimation of the well productivity depends on accurate modeling of permeability and inertial effects.
Sultan Anbar, Mayank Tyagi, Karsten Thompson   +2 more
openaire   +1 more source