Fingering and Coning of Water and Gas in Homogeneous Oil Sand

Arthur, Maclean

doi:10.2118/944184-g

Cited by 17 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3][4][5][6] When production takes place at or below the critical rate, the water or gas cone is stable below (or above for gas coning) the well and no breakthrough occurs. However, factors such as the production mechanism, flow conditions, and the interaction between the fluids, 7,8 affect the coning behavior and not under all circumstances does a stable cone and a critical production rate exist.…”

Section: General Definitionsmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] The effect of finitewellbore conductivity on coning behavior and breakthrough time, however, is yet to be investigated in sufficient detail. In this study, we present an approximate analytical model to predict the behavior of an evolving cone and its breakthrough into a finite-conductivity horizontal well.…”

Section: Spe 60308mentioning

confidence: 99%

See 1 more Smart Citation

Water and Gas Coning toward Finite-Conductivity Horizontal Wells: Cone Buildup and Breakthrough

Umnuayponwiwat

Özkan

2000

All Days

View full text Add to dashboard Cite

TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThis study concludes that the shape as well as the time of breakthrough of a water or a gas cone are significantly affected by the pressure drop within the wellbore. An analytical model is used to demonstrate features of the movement of a cone when pressure drops in the wellbore are important. It is shown that wellbore hydraulics produces a self-sharpening feature and this leads to breakthrough at the heel of the well. This behavior may not be demonstrated by assuming an infinite-conductivity wellbore. The model described here may be used to assist simulation studies by providing specifics on the movement of the cone. L K

show abstract

Section: General Definitionsmentioning

confidence: 99%

Section: Spe 60308mentioning

confidence: 99%

Water and Gas Coning toward Finite-Conductivity Horizontal Wells: Cone Buildup and Breakthrough

Umnuayponwiwat

Özkan

2000

All Days

View full text Add to dashboard Cite

show abstract

“…The relative permeability of water at Sw = 1 -Sor and that of oil at So = 1 -Swe are included in equations (2) and (3), respectively. Note that k ro = 1 for most cases.…”

Section: Introductionmentioning

confidence: 99%

General Coning Correlations Based on Mechanistic Studies

Lee

Tung

1990

All Days

View full text Add to dashboard Cite

The coning of water can impact well productivity and increase water treatment requirements. Coning correlations are often used to model water-breakthrough time and water cut due to coning. Most existing coning correlations are based on a steady state approximation so that the prediction of water-breakthrough time and initial water cut development are generally unreliable. By first determining the key reservoir, production, and well completion parameters through a theoretical analysis, improved correlations were developed. They have been extensively compared with numerical simulation results to validate their general applicability. The correlations simplify the procedure in the study of the effects of production rate, vertical and horizontal permeabilities, well completion location, physical properties of fluids, relative permeabilities, aquifer thickness, completion interval size, and drainage radius on coning dynamics.The new correlations can be used in a stand-alone program or in reservoir simulation. In field-scale reservoir simulation, correlations are often employed to model sub-scale flow behavior near a well. Hence, technical issues in implementing correlations into a finite difference simulator are also discussed. In addition, the new correlations are extended to multi-layered, nonhomogeneous reservoir models.

show abstract

“…1,3,4,5,8) gave formulae to calcula-te the optimum position of perforated interval' corresponding to a Profitable production of oil is particularly questionable when maximum water free and gas ;ree oil rate. 1,3,4,5,8) gave formulae to calcula-te the optimum position of perforated interval' corresponding to a Profitable production of oil is particularly questionable when maximum water free and gas ;ree oil rate.…”

Section: Introductionmentioning

confidence: 99%

“…In Eastern countries, reverse water coning method has found~q &an indicated by equ(1). Then, an experimental coefficient a must great favour and is often used in practice (ref.7, 10).…”

mentioning

confidence: 99%

Application of a Multiphase Coning Model to Optimize Completion and Production of Thin Oil Columns Lying Between Gas Cap and Water Zone

Cottin¹,

Ombret²

1973

Proceedings of Fall Meeting of the Society of Petroleum Engineers of AIME

View full text Add to dashboard Cite

then be respected together. On the other hand, because of the great number of parameters involved, theoretical hand calculations cannot A recently developed, high performance, numerical model be achieved without assuming drastic simplifications.was used to anafyse three phase coning. Results, obtained in a series of simulations, have supplied general directions for optimizing This is why, up to recent years, most of these works were too completion and production of thin oil columns comprised between partial, approximate, or inconclusive to be reliable. gas cap and water zone.It appears now that modern Iwo dimension, three phase A correlation is presented for fast evaluation. Conclusions, numerical models may help to clarify considerably this complicated valid only for reservoirs showing no major heterogeneity, depend subject.mdln]y on relative permeability effects, gas cap expansion and water drive strength.BACKGROUNDOF DOUBLE CONING THEORY Under certain conditions, it appears that wells perforated The first idea that occurs to prevent double coning, and the under water oil contact and produced at high rate, as commonly easiest for application, is to produce oif under dtwr31e critical practised on some fields, notably in East European countries, are conditions, that is to say without breakthrough of gas and water giving the best results. into the well.

show abstract

Fingering and Coning of Water and Gas in Homogeneous Oil Sand

Cited by 17 publications

References 0 publications

Water and Gas Coning toward Finite-Conductivity Horizontal Wells: Cone Buildup and Breakthrough

Water and Gas Coning toward Finite-Conductivity Horizontal Wells: Cone Buildup and Breakthrough

General Coning Correlations Based on Mechanistic Studies

Application of a Multiphase Coning Model to Optimize Completion and Production of Thin Oil Columns Lying Between Gas Cap and Water Zone

Contact Info

Product

Resources

About