Analysis of fluid injection-induced fault reactivation and seismic slip in geothermal reservoirs
نویسندگان
چکیده
منابع مشابه
Analysis of fluid injection-induced fault reactivation and seismic slip in geothermal reservoirs
We explore the issue of fault reactivation induced in enhanced geothermal systems by fluid injection. Specifically, we investigate the role of late stage activation by thermal drawdown. A Thermal-Hydrological-Mechanical simulator incorporating a ubiquitous joint constitutive model is used to systematically simulate the seismic slip of an embedded critically stressed strike-slip fault. We examin...
متن کاملINDUCED SEISMICITY. Seismicity triggered by fluid injection-induced aseismic slip.
Anthropogenic fluid injections are known to induce earthquakes. The mechanisms involved are poorly understood, and our ability to assess the seismic hazard associated with geothermal energy or unconventional hydrocarbon production remains limited. We directly measure fault slip and seismicity induced by fluid injection into a natural fault. We observe highly dilatant and slow [~4 micrometers pe...
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Heat extraction from deep, hot rocks for energy production is based on water circulation through a man made fracture or natural fractures. As multiple and non-planar fractures in a stress field affect the geothermal reservoir behavior, so the capability to simulate multiple fractures and joints is needed to help reservoir design and operation. A 3D model is developed in this work to simulate an...
متن کاملCold - Water Injection into Single - and Two - Phase Geothermal Reservoirs
Numerical simulation techniques have been employed by several suthors (see e.g. Benson and Approximate analytical solutions a rived for Bodvarsson, 1982; Garg and Pritchett, 1384 to cold water injection into single0-phase “porous medium” geothermal reservoirs. A (liquid) and two-phase (liquid water/steam) numerical geothermal reservoir simulator is used “porous medium” reservoirs. Injection of ...
متن کاملDouble Advective Effects Controlling Liquid Injection in Geothermal Reservoirs
We examine the motion of liquid injected into a liquid dominated geothermal reservoir, focusing on the situation in which the injected liquid has different temperature and composition from the reservoir fluid. As a result of these differences, the injected liquid will typically be of different density to the reservoir fluid, and will therefore spread through the reservoir under gravity. Owing t...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2014
ISSN: 2169-9313
DOI: 10.1002/2013jb010679