Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2005-03-08
2005-03-08
Thompson, Kenn (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C166S250070, C166S280100
Reexamination Certificate
active
06863128
ABSTRACT:
The present invention relates to a method of determining the proppant friction generated in a fracture of a subterranean formation during a hydraulic fracturing treatment involving injection stages of pad and of proppant-laden fluids. This method is based on close monitoring of surface pressure to define a “net pressure rate” which defines an increase or decrease of net pressure while the job is being pumped, and then relates it with the pressure changes observed with the onset of proppant stages of varying concentrations.
REFERENCES:
patent: 5103905 (1992-04-01), Brannon et al.
patent: 5183109 (1993-02-01), Poulsen
patent: 5325921 (1994-07-01), Johnson et al.
patent: 5492175 (1996-02-01), El-Rabaa et al.
patent: 5635636 (1997-06-01), Alexander
patent: 5708204 (1998-01-01), Kasap
patent: 6076046 (2000-06-01), Vasudevan et al.
Govier, G.W. and Aziz, K.:The Flow of Complex Mixtures in Pipes, van Nostrand Rheinhold Co., New York City, (1972), pp 98.
Keck, R.G., Nehmer, W.L., and Strumolo, G.S.: “A New Method for Predicting Friction Pressures and Rheology for Proppant-laden Fracturing Fluids,” SPE 19771 presented at the 64thAnnual Technical Conference and Exhibition of the Society of Petroleum Engineers held in San Antonio, TX, Oct. 8-11, 1989.
Virk, P.S.,: “Drag Reduction Fundamentals,”AIChE J. (Jul., 1975) 21. No. 4, 625-656.
Round, G.F. and Kruyer, J.: “Experiments on the Suspension of Spheres in Inclined Tubes-I. Suspension by Water in turbulent Flow,”Chem. Eng. Sci. (1967) 22, 1133-45.
Molerus, O. and Wellmann, P.: “A New Concept for the Calculation of Pressure Drop with Hydraulic Transport of Solids in Horizontal Pipes,”Chem. Eng. Sci. (1981) No. 10, 1623-32.
Shah, S.N., Lee, Y.N.: “Friction Pressures of Proppant-Laden Hydraulic Fracturing Fluids,” SPE Production Engineering (Nov. 1986) 437-45.
Shah, S.N.: “Proppant Settling Correlations for Non-Newtonian Fluids under Static and Dynamic Conditions,”Trans., AIME, 273, Part 2 (1982) 164-70.
Lord, D.L. and McGowan, J.M.,: “Real-Time Treating Pressure Analysis Aided by New Correlation,” SPE 15367 presented at the 61stAnnual Technical Conference and Exhibition of the SPE held in New Orleans, LA, Oct. 5-8, 1986.
Pandey, V.J.: “Friction Pressure Correlation for Guar-Based Hydraulic Fracturing Fluids,” SPE 71074 presented at the SPE Rocky Mountain Petroleum Technology Conference held in Keystone, CO, May 21-23, 2001.
Tehrani, M.A.: “An experimental study of particle migration in pipe flow of viscoelastic fluids,” J. Rheology 40(6), Nov./Dec. 1996. pp. 1057-1077.
Thomas, D.G.: Heat and Momentum Transport Characteristics of Non-Newtonian Aqueous Thorium Oxide Suspensions,;AIChE J. (1960) 6, 631-39.
Thomas, D.G.: “Transport Characteristics of Suspensions: Part VIII. A Note on the Viscosity of Newtonian Suspensions on Uniform Spherical Particles,”J. Colloid Sci. (1965) 20, 267-77.
Hannah, R.R., Harrington, L.J., and Lance, L.C.: “Real Time Calculation of Accurate Bottomhole Fracturing Pressure From Surface Measurements with Measured Pressure as a Base,” paper SPE 12062 presented at the 1983 SPE annual Technical Conference and Exhibition, San Francisco, Oct. 5-8.
Gidley, J.L., Holditch, S.A., Nierode, D.E., and Veatch, R.W. Jr.,: “Recent Advances in Hydraulic Fracturing”,Ch. 9 “Fracturing Fluid Behavior”, SPE Monograph, vol. 12. Henry L. Doherty Series, pp 190.
Nicodemo, L., Nicolais, L. and Landel, R.F.: “Shear Rate Dependent Viscosity of Suspensions in Newtonian and Non-Newtonian Liquids,”Chem. Eng. Sci. (1974) 29, 729-35.
Jeffrey, D.J. and Acrivos, A.: “The Rheological Properties of Suspensions of Rigid Particles,”AIChE J. (May 1976) 22, No. 3, 417-32.
Nolte, K.G.: “Fluid Flow Considerations in Hydraulic Fracturing,” SPE 18537 presented at the Society of Petroleum Engineers Eastern Meeting in Charleston, W.V, Nov. 1-4, 1988.
Latto, B, Round, G.G., and Anzenavs, R.; “Drag Coefficients and Pressure Drop for Hydrodynamically Suspended Spheres in a vertical tube with and without Polymer Addition,”Cdn. J. Chem. Eng. (Oct. 1973) 51, 536-41.
Boney Curtis L.
Pandey Vibhas
Echols Brigiha L.
Nava Robin
Schlather Steve
Schlumberger Technology Corporation
Thompson Kenn
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