Method for predicting acid placement in carbonate reservoirs

Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression

Reexamination Certificate

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C703S005000, C703S007000, C703S009000, C166S288000, C166S303000

Reexamination Certificate

active

07603261

ABSTRACT:
A computationally efficient general method of modeling or simulating matrix acidizing treatment when flow is not axisymmetric involves determining streamlines in the general flow field using complex potential theory to solve for the flow along the streamlines. The flow over a time step is used to model the propagation of the acid front and the creation and extension of wormholes.

REFERENCES:
patent: 6196318 (2001-03-01), Gong
patent: 7114567 (2006-10-01), Chan
patent: 7165613 (2007-01-01), Chan
patent: 2008/0135254 (2008-06-01), Vinegar et al.
patent: 2008/0185147 (2008-08-01), Vinegar et al.
SPE 52165; M. Gong, A.M. El-Rabba; Quantitative Model of Wormholing Process in Carbonate Acidizing; Society of Petroleum Engineers; 1999; SPE Mid-Continent Operations Symposium in Oklahoma City, Oklahoma; Mar. 28-31, 1999.
SPE 27403; A.D. Hill, Ding Zhu & Yimei Wang; The Effect of Wormholing on the Fluid-Loss Coefficient in Acid Fracturing; SPE Productions & Facilities, Nov. 1995; pp. 257-263; 1994 SPE Formation Damage Symposium in Lafayette, Louisiana Feb. 7-10.
SPE 26578; Y. Wang, A.D. Hill and R.S. Schechter; The Optimum Injection Rate for Matrix Acidizing of Carbonate Formations; Society of Petroleum Engineers; 1993; 68th Annual Technical Conference and Exhibition of the Society of Petroleum Engineers in Houston, Texas; Oct. 3-6, 1993.
SPE 16887 ; G. Daccord, E. Touboul and R. Lenormand; Carbonate Acidizing: Toward a Quantitative Model of the Wormholing Phenomenon; SPE Production Engineering; 1987; SPE Annual Technical Conference Exhibition in Dallas, Texas; Sep. 27-30, 1987.
SPE 38166; Marten A. Buijse; Understanding Wormholing Mechanisms Can Improve Acid Treatments in Carbonate Formations; Society of Petroleum Engineers; 1997; SPE European Formation Damage Conference in The Hague, the Netherlands; Jun. 2-3, 1997.
SPE 16886; K.M. Hung, A.D. Hill and K. Sepehrnoorl; A Mechanistic Model of Wormhole Growth in Carbonate Matrix Acidizing and Acid Fracturing; Journal of Petroleum Technology; 1987; SPE Annual Technical Conference and Exhibition in Dallas, Texas; Sep. 27-30, 1987.
SPE 68922; F. Golfier, B. Bazin; C. Zarcone; R. Lernormand, D. Lasseux and M. Quintard; Acidizing Carbonate Reservoirs: Numerical Modelling of Wormhole Propagation and Comparison to Experiments; 2001; SPE European Formation Damage Conference in The Hague in the Netherlands; May 21-22, 2001.
SPE 86504; Bernhard Lungwitz, Chris Fredd, Mark Brady, Matthew Miller, Syed Ali & Kelly Hughes; Diversion and Cleanup Studies of Viscoelastic Surfactant-Based Self-Diverting Acid; Society of Petroleum Engineers; 2004; SPE International Symposium and Exhibition on Formation Damage Control in Lafayette, Louisiana; Feb. 18-20, 2004.
SPE 77369; Mohan K.R. Panga, Vemuri Balakotaiah and Murtaza Ziauddin; Modeling, Simulation and Comparison of Models for Wormhole Formation during Matrix Stimulation of Carbonates; 2002; SPE Annual Technical Conference and Exhibition in San Antonio, Texas; Sep. 29-Oct. 2, 2002.
SPE 86517; Mohan K.R. Panga, Murtaza Ziauddin, Ramakrishna Gandikota and Vemuri Balakotaiah; A New Model for Predicting Wormhole Structure and Formation in Acid Stimulation of Carbonates; 2004; SPE International Symposium and Exhibition on Formation Damage Control in Lafayette, Louisiana; Feb. 18-20, 2004.
G. Daccord, R. Lenormand and O. Lietard; Chemical Dissolution of a Porous Medium by a Reactive Fluid;—I. Model for the “Wormholing” Phenomenon; Chemical Engineering Science; 1992; pp. 169-178; vol. 48 No. 1; Pergamon Press Ltd.; Printed in Great Britain.
G. Daccord, O. Lietard and R. Lenormand; Chemical Dissolution of a Porous Medium by a Reactive Fluid—II. Convection vs. Reaction, Behavior Diagram; Chemical Engineering Science; 1993; pp. 179-186; vol. 48 No. 1; Pergamon Press Ltd.; Printed in Great Britain.
F. Golfier, C. Zarcone, B. Bazin, R. Lenormand, D. Lasseux and M. Quintard; On the Ability of a Darcy-Scale Model to Capture Wormhole Formation During the Dissolution of a Porous Medium; J. Fluid Mech.; 2002; pp. 213-254; vol. 457; Cambridge University Press; Printed in the United Kingdom.
Gerard Daccord; Chemical Dissolution of a Porous Medium by a Reactive Fluid; The American Physical Society; 1987; pp. 479-482; vol. 58 No. 5; Dowell-Schlumberger; 42003 Saint Etienne Cedex 1, France.

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