Fracture aperture change in response to reactive transport of silica and thermoelastic effects

42nd U.S. Rock Mechanics - 2nd U.S.-Canada Rock Mechanics Symposium

Volumn , Issue , 2008, Pages

  Rawal, C ^a   Ghassemi, A ^a  

^a Texas AandM University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANALYTICAL SOLUTIONS; CHEMICAL PROCESS; DISSOLUTION REACTIONS; ENHANCED GEOTHERMAL SYSTEMS; FLUID FLOW; FRACTURE APERTURES; GAIN INSIGHT; MINERAL PRECIPITATION; NATURAL FRACTURE; NUMERICAL SOLUTION; PREEXISTING FRACTURE; REACTIVE CHEMICALS; REACTIVE FLUIDS; REACTIVE TRANSPORT; RESERVOIR ROCK; ROCK MATRIX; SINGLE COMPONENTS; TEMPERATURE DEPENDENT; THERMOELASTIC EFFECTS; THERMOELASTICS;

DISSOLUTION; FLOW OF FLUIDS; GEOTHERMAL FIELDS; MECHANICAL PERMEABILITY; MINERALS; MINING; REACTION KINETICS; RESERVOIRS (WATER); ROCK MECHANICS; ROCKS; SILICA; THERMOELASTICITY; TRANSPORT PROPERTIES;

FRACTURE;

EID: 69549122543     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (24)

1. Ghassemi, A. and Q. Zhang. 2004. Poro-thermoelastic mechanisms in wellbore stability and reservoir stimulation. In proceedings of the 29th Stanford Geothermal Workshop 2004, Stanford.
2. Ghassemi, A., S. Tarasovs and A.H.-D. Cheng. 2005. Integral equation solution of heat extraction induced thermal stress in enhanced geothermal reservoirs. Int. J. Numer. Analyt.
3. Ghassemi, A. and S. Kumar. 2007. Changes in fracture aperture and fluid pressure due to thermal stress and silica dissolution/precipitation induced by heat extraction from substrate rocks. Geothermics. in press.
4. Nygren, A., A. Ghassemi and A. Cheng, 2005. Effects of cold-water injection on fracture aperture and injection pressure. Geothermal Resources Council Trans. 29: 183-187.
5. Carroll S., E. Mroczek, M. Alai, and M. Ebert, 1998. Amorphous silica precipitation (60 to 120 degrees C): Comparison of laboratory and field rates. Geochim Cosmochim Acta, 62: 1379-1396.
6. Johnson, J.W., K.G. Knauss, W.E. Glassley, L.D. DeLoach, and A.F.B. Tompson. 1998. Reactive Transport Modeling of Plug-Flow Reactor Experiments: Quartz and Tuff Dissolution at 240°C. Jour. of Hydrol. 209: 81-111.
7. Dobson, P. F., T. J. Kneafsey, E. I .Sonnenthal, N. Spycher, and J. A. Apps. 2003. Experimental and numerical simulation of dissolution and precipitation: implications for fracture sealing at Yucca Mountain, Nevada. J. Contam. Hydrol. 62-63: 459-476.
8. Lowell, R.P., P. Van Cappellen and L.N. Germanovich, 1993. Silica precipitation in fractures and the evolution of permeability in hydrothermal upflow zones. Science. 260: 192-194.
9. Germanovich, L.N., and R. P. Lowell. 1992. Percolation theory, thermoelasticity, and discrete hydrothermal venting in the earth's crust. Science. 255: 1564-1567.
10. Lowell, R.P., and L.N. Germanovich. 1994. On the temporal evolution of high-temperature hydrothermal systems at ocean ridge crests. J. Geophys. Res. 99: 565-575.
11. Bolton, E.W., A. C .Lasaga, and D. M. Rye. 1996. A model for the kinetic control of quartz dissolution and precipitation in porous media flow with spatially variable permeability: Formulation and examples of thermal convection. J. Geophys. Res. 101: 22,157-22,187.
12. Ghassemi, A. and S. Kumar. 2005. Numerical modeling of non-isothermal quartz dissolution/precipitation in a coupled fracture-matrix system. Geothermics. 34: 411-439.
13. Martin, T., and Lowell, R.P. 1997. On thermoelasticity and silica precipitation in hydrothermal systems: Numerical modeling of laboratory experiments. J. Geophys. Res. 102: 12095-12107.
14. Steefel Carl I. and Anonio C. Lsaga. 1994. A coupled model for transport of multiple chemical spices and kinetic precipitation/dissolution reactions with application to reactive flow in single phase hydrothermal. American Journal of Science. 294: 529-592.
15. Steefel Carl I. and Lichtner Peter C. 1998. Multicomponent reactive transport in discreate fractures: I. Controls on reaction front geometry. Journal of Hydrology. 209: 186-199.
16. Tang D.H., Frind E.O. and Sudicky E.A. 1981. Contaminant transport in fractured porous media: analytical solution for a single fracture. Water Resources Research.17-3:555-564.
17. Wangen Magnus and Munz I. A. 2004. Formation of quartz veins by local dissolution and transport of silica. Chemical Geology. 209: 179-192.
18. Cheng, A.H.-D., A. Ghassemi and E. Detournay. 2001. Integral equation solution of heat extraction from a fracture in hot rock. Int. J. Numer. Analyt. Meth. Geomech. 25: 1327-1338.
19. Stehfast, H. 1970. Numerical inversion of Laplace transforms. Comm. ACM. 13: 47-49.
20. Robinson, B.A. 1982. Quartz dissolution and silica deposition in hot dry rock geothermal systems. Master Thesis. MIT.
21. Rimstidt, J.D. 1979. The kinetics of silica-water reactions. Ph.D Thesis. The Pennsylvania State University.
22. Rimstidt, J.D., and Barnes, H.L.1980. The kinetics of silica-water reactions. Geochim. Cosmochim. Acta. 44: 1683-1699.
23. Robinson, B.A., and J. Pendergrass.1989. A combined heat transfer and quartz dissolution/deposition model for a hot dry rock geothermal reservoir. In Proc. 14th Workshop Geothermal Reservoir Engineering. Stanford University. Jan 24-26: 207-212.
24. Sudicky, E.A., Frind, E.O. 1982. Contaminant transport in fractured porous media: analytical solutions for a system of parallel fracture, Water Resources Research. 18:1634-1642.