Hydraulic stimulation of geothermal reservoirs: fluid flow, electric potential and microseismicity relationships
نویسندگان
چکیده
منابع مشابه
Coupled Geomechanical and Reactive Geochemical Simulations for Fluid and Heat Flow in Enhanced Geothermal Reservoirs
A major concern in development of fractured reservoirs in Enhanced Geothermal Systems (EGS) is to achieve and maintain adequate injectivity, while avoiding short-circuiting flow paths. The injection performance and flow paths are dominated by fracture rock permeability. The evolution of fracture permeability can be made by change in temperature or pressure induced rock deformation and geochemic...
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Hydraulic stimulation in Enhanced Geothermal Systems is performed by injecting water at high pressure into low permeability, typically crystalline, rock. In most cases, the elevated pore pressure induces slip on preexisting fractures, resulting in an increase in permeability. This process involves interacting hydraulic, thermal, mechanical, and thermoelastic processes. It is complicated by the ...
متن کاملMicroseismicity , stress , and fracture in the Coso geothermal field , California
Microseismicity. stress, and fracture in the Coso geothermal field are investigated using seismicity, focal mechanisms and stress analysis. Comparison of hypocenters of microearthquakes with locations of development wells indicates that microseismic activity has increased since the commencement of fluid injection and circulation. Microearthquakes in the geothermal field are proposed as indicato...
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The authors have been developing a new variation of passive reflection technique, where microseismic multiplets are used as a source (multiplet reflection imaging using microseismicity: multiplet RIM). Closely similar waveform and precisely determined hypocenter of the multiplet can be effectively used to image structures inside/around the seismically activated EGS reservoirs. In the multiplet ...
متن کاملEffects of Coupled Convection and Co2 Injection in Stimulation of Geopressured Geothermal Reservoirs
Geopressured brines are a vast geothermal resource in the US Gulf of Mexico region. In particular, geopressured sandstones near salt domes are potential sources of geothermal energy because salt diapirs with high thermal conductivity may pierce younger, cooler strata. These characteristics enhance transfer heat from older, hotter strata at the base of the diapir into shallower strata. Moreover,...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2006
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.2006.03026.x