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Figure 7[d] Illustrates the velocity field of the fluid flow. Through the use of COMSOL Multiphysics 4.0 a rational understanding and appreciation of the fractured system is achieved. Furthermore, by performing the necessary field and experimental studies to determine the required model parameters as list in 2.1, multiple simplistic models of the research areas can be developed. As Darcy’s velocity can be determined and modeled to illustrate highly prospective regions for fluid flow with the reservoir. The most efficient site location for drilling aspects and further geophysical surveys will then be identified through this manner. LIMIT A TIONS A key assumption made into the investigation of the fluid flow along the geometry shown by Figure [1], was laminar flow through the discrete fracture path. However, turbulent flow was not considered in particular at the junctions from the horizontal to vertical fractured plates. Furthermore, COMSOL Multiphysics 4.0a did not take into account a temperature component as this can generate significant knowledge into the thermal distribution of heat transfer along the fracture path. CONCLUSION Many uncertainties about future energy supplies in the world are being faced presently. Most of the energy currently used comes from fossil-fuel resources such as coal, oil and gas. The characterization of a fractured rock system is one of the most challenging problems faced by hydrogeologists. The prediction of hydraulic behavior of fractured porous geological systems is determinant upon the assessment of fractures as barriers or hydraulic conductors. Furthermore, mathematical models are critical for detailed understanding and to determine fluid flow behavior. Therefore, as a result of this conceptual model an understanding of the geometry and mathematical flow processes occurring within the fractured reservoir is attained. This fundamental step is crucial, for more advanced approaches towards fully describing an understanding the complex nature of the system. Hence through field and laboratory studies on the mineralogy of research areas on Nevis, this conceptual model can be developed to fully generate a mathematical and numerical model. Due to the diverse nature of the rock mineralogy of Nevis, specific models can be produced to represent the characteristic of that individual location. Future work into the fluid flow and its characteristics can be investigated to further enhance this model to fully develop a better understanding of the flow with the fracture path. REFERENCES Barton, C.A., S. Hickman, Morin R., Zoback, M.D. and Benoit, (1998), Reservoir-scale fracture permeability in the Dixie V alley, Navada, Geothermal Field, Proceeding 23rd Workshop on Geothermal Reservoir Engineering, Stanford University, p. 299-306. Bear,J., (1972). Dynamics of Fluids in Porous Media. American Elsevier, New York. Bl cher, M.G., Cacace, M., Lewerenz, B., and Zimmermann, G., Three dimensional modelling of fractured and faulting reservoirs: Framework and Implementation, Elsevier GmbH, 1-2 Boitnott, G.N (2002), Core analysis for the development and constraint of physical models of geothermal reservoirs. Geothermal Research Council Transactions, 26, p. 387-392. Brown, S.R. (1987), “Fluid flow through rock joints: Effects of surface roughness,” Journal Geophysical Research, 1, p. 325-328. Chandrasekharam, D., and Jochen B. (2008), Low- Enthalpy Geothermal Resources for Power Generation COMSOL Multiphysics 4.0a © COPYRIGHT 2010 COMSOL AB, Model library, Discrete fracture, 1-3. Crampin, S.( 1994), “The fracture criticality of crustal rocks,” Geophysical Journal International, 118, 428-438 Crawford, B.R., Myers, R.D., Woronow, A., Faulkner, D.R., and E.H. Rutter (2002): Porosity-permeability relationships in clay- bearing fault gouge. SPE/IRSM, 78214, p. 1-13.PDF Image | CONCEPTUAL MODEL FOR GEOTHERMAL ENERGY CARIBBEAN
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