Acid-Sensitive Aluminosilicates: Dissolution Kinetics and Fluid Selection for Matrix-Stimulation Treatments
- Ryan L. Hartman (U. of Michigan) | Bruno Lecerf (Schlumberger) | Wayne W. Frenier (Schlumberger) | Murtaza E. Ziauddin (Schlumberger) | H. Scott Fogler (U. of Michigan)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- May 2006
- Document Type
- Journal Paper
- 194 - 204
- 2006. Society of Petroleum Engineers
- 4.1.5 Processing Equipment, 1.6.9 Coring, Fishing, 1.8 Formation Damage, 3.2.3 Hydraulic Fracturing Design, Implementation and Optimisation, 4.3.1 Hydrates, 3.2.4 Acidising, 5.2 Reservoir Fluid Dynamics, 4.1.2 Separation and Treating, 4.3.4 Scale
- 1 in the last 30 days
- 728 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
Dissolution kinetics of analcime (a zeolite), chlorite, and illite (layered aluminosilicates) are examined in hydrochloric and mixtures of hydrochloric and hydrofluoric acid systems. Dissolution kinetics were determined from batch reactor experiments in the temperature range of 25 to 100°C. The reaction progress was monitored by analysis of Al, Si, Fe, Mg, and Na concentrations in the aqueous phase. The reactivity of these aluminosilicates was compared with that of kaolinite under similar experimental conditions.
Models for the reaction of the aluminosilicates with each acid are presented. The reaction kinetics incorporated into a geochemical simulator predict matrix-stimulation results for formations containing these minerals. Guidelines for design of matrix-stimulation treatments for acid-sensitive formations are formulated.
Sandstone acidizing is a complex operation because the treatment involves flow and reactions in porous media where the reactive chemicals can contact a wide range of minerals. The formation may contain various amounts of silica (SiO2), clays (aluminosilicates such as kaolinite or illite), or alkaline aluminosilicates such as feldspar and zeolites, as well as calcium and magnesium carbonates. Recent studies on matrix stimulation have strongly emphasized the importance of secondary and tertiary reactions in determining the success of matrix treatments (Gdanski 1996, 1997a). However, for acid-sensitive aluminosilicates, these reactions are especially important because they occur at much shorter time scales than for the nonacid-sensitive minerals. The presence of acid-sensitive aluminosilicates may dominate treatment design considerations, even though they may be present in small quantities compared to other aluminosilicates.
Appropriate selection of treatment fluids is key in preventing formation damage in presence of acid-sensitive aluminosilicates. However, the extent of secondary and tertiary reactions under reservoir conditions for each fluid and mineral is difficult to quantify with laboratory testing alone (Ziauddin et al. 2002a). In this study, a combination of laboratory testing and geochemical simulations have been used to elucidate the underlying reaction mechanisms for these minerals and to determine their impact on reservoir treatments.
|File Size||1 MB||Number of Pages||11|
Gdanski, R. 1996. Kinetics ofTertiary Reactions of Hydrofluoric Acid on Aluminosilicates. SPEPF13(2):75-80. SPE-31076-PA.
Gdanski, R. 1997a. Kinetics ofthe Secondary Reaction of HF on Alumino-Silicates. Paper SPE 37214presented at the SPE International Symposium on Oilfield Chemistry, Houston,18-21 February.
Gdanski, R.D. 1997b. Kineticsof the Primary Reaction of HF on Alumino-Silicates. Paper SPE 37459presented at the SPE Production Operations Symposium, Oklahoma City, 9-11March.
Gdanski, R.D. and Shuchart, C. 1998. Advanced Sandstone-Acidizing DesignsWith Improved Radial Models. SPEPF 12(4):272-278. SPE-52397-PA.
Grim, R.E. 1953. Clay Mineralogy. New York City: McGraw-Hill.
Kline, W.E. 1980. The Catalyzed Dissolution of Silicate Materials inHydrofluoric Acid. PhD dissertation, U. of Michigan, Ann Arbor, Michigan.
Kline, W.E. and Fogler, H.S. 1981. Dissolution Kinetics:Catalysis by Strong Acid. Journal of Colloid and Interface Science82(1):93-102.
Labrid, J.-C. 1975. Thermodynamic and Kinetic Aspects ofArgillaceous Sandstone Acidizing. SPEJ 15(2):117-128. SPE-5156-PA.
Linke, F. 1965. Solubilities of Inorganic and Metal-Organic Compounds.Fourth ed., vol. 2. American Chemical Society: Washington, DC.
Perthuis, H., Touboul, E., and Piot, B. 1989. Acid Reactions and Damage Removal inSandstones: A Model for Selecting the Acid Formulation. Paper SPE 18469presented at the International Symposium on Oilfield Chemistry, Houston, 8-10February.
Ross, G.J. 1969. Acid Dissolution of Chlorites: Release of Magnesium, Ironand Aluminum and Mode of Acid Attack. Clays and Clay Minerals17:347-354.
Shock, E.L. and Helgeson H.C. 1988. Calculation of theThermodynamicand Transport Properties of Aqueous Species at High Pressures and Temperatures:CorrelationAlgorithms for Ionic Species and Equation ofStatePredictions to 5 kb and 1000 °C.Geochim. Cosmochim.Acta52:2009-2036.
Simon, D.E. and Anderson, M.S. 1990. Stability of Clay Minerals inAcid. Paper SPE 19422 presented at the SPE Formation Damage Conference,Lafayette, Louisiana, 22-23 February.
Wagman, D.D. et al. 1982. The NBS Tables of Chemical ThermodynamicProperties. Selected Values for Inorganic and C1 and C2 Organic Substances inSI Units. J. Phys. and Chem. Ref. Data 11(Supp 2):2-392.
Ziauddin, M., Kotlar, H.K., Vikane, O., Frenier, W., and Poitrenaud, H.2002a. The Use of a VirtualChemistry Laboratory for the Design of Matrix-Stimulation Treatments in theHeidrun Field. Paper SPE 78314 presented at the European PetroleumConference, Aberdeen, 29-31 October.
Ziauddin, M. et al.: 2002b. Evaluation of Kaolinite Clay Dissolution byVarious Mud Acid Systems (Regular, Organic and Retarded). Presented at the 5thInternational Conference and Exhibition on Chemistry In Industry, Manama,Bahrain.