Analysis on method for effective in-situ stress measurement in hot dry rock reservoir

• 作者: LI A-wei SUN Dong-sheng ZHANG An-bin ZHAO Wei-hua
• 来源期刊: 地下水科学与工程：英文版
• 学科: 地球科学
• 年，卷（期）: 2015,（1）
• 页码范围: 9-15
• 页数: 7页
• 分类号: P314

摘要

With the rapid increase of energy demand and the increasingly highlighted environmental problems, clean, safe and widely distributed geothermal resources have become a hot spot for renewable resources development. The state of in-situ stress is a major control parameter for multiple links including well location, fracture inspiration and reservoir assessment, so how to determine the accurate state of in-situ stress in the deep thermal reservoir becomes a core problem drawing widely attention and urgent to be solved. Based on features of hot dry rock reservoir in terms of temperature and pressure and the comparison analysis, this article proposes the method of Anelastic Strain Recovery(ASR) as an effective method for determining the state of in-situ stress in the area with HDR resources distributed and explains the availability of ASR method by application examples.