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Numerical models for the simulation of bleed-off control on post-injection seismicity in ‎enhanced geothermal systems

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DataCite Commons2024-12-12 更新2025-04-09 收录
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https://digital.csic.es/handle/10261/374195
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[Description of methods used for collection/generation of data] The models are 2D plane strain including a homogeneous and isotropic granitic reservoir rock ‎intersected by an interconnected fracture network and a distant fault to the wellbore. Generic hydromechanical properties are assumed for the reservoir rock and the intersecting fractures and fault. The fault ‎in the models is either hydraulically isolated from the fracture network, i.e., our "basecase" scenario, or intersected by them, a scenario referred to as "connected". Post-‎injection protocols to control seismicity include well shut-in or bleed-off. During bleed-off, the ‎wellhead is opened to impose hydrostatic pressure conditions along the well over a period of ‎either 24 h or 1 h. The ‎hydrostatic pressure profile is maintained afterwards. Different injection ‎periods are considered to inspect the effect of this parameter on the effectiveness of bleed-off ‎in controlling post-injection seismicity. ‎
提供机构:
DIGITAL.CSIC
创建时间:
2024-12-12
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