Elastic and Anelastic Properties of KTB Hole Samples Under Simulated In-situ P-T Conditions: Effects of Fabric, Cracks,and Fluid (Pore) Pressure

模拟原位 P-T 条件下 KTB 孔样品的弹性和滞弹性特性：织物、裂缝和流体（孔隙）压力的影响

• 批准号: 9319786
• 负责人: Murli Manghnani
• 金额: $ 11.02万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9319786&HistoricalAwards=false
• 关键词: Elastic; Anelastic; Properties; KTB; Hole

9319786 Manghnani The German super-deep continental bore-hole (KTB) project offers an excellent opportunity to study the seismic and petrophysical properties of crustal rocks. Laboratory studies of the bore-hole samples, combined with field seismic surveys in the Bavarian Oberfalz and well-log data, will enable fine-tuning and enhancement of interpretations of seismic reflection data and other geophysical signatures in terms of the crustal lithology, composition, microstructure, fabric, and presence of pore fluids. This project involves laboratory studies on the frequency, pore pressure, and temperature dependences of the attenuation properties of the KTB samples which are aimed at securing a vital linkage in interpreting seismic and well-log data. The results will also complement existing velocity data. The data to be collected are essential for understanding wave propagation in intensely foliated and cracked rocks encountered in this region. A systematic study of the attenuation properties of KTB samples from varying depths under simulated in-situ fluid content, fluid pressure, and temperature conditions will help in relating the laboratory results to subsurface crack modeling and in estimating in-situ stress. ***

小行星9319786 德国超深大陆钻孔（KTB）项目为研究地壳岩石的地震和岩石物理性质提供了极好的机会。 对钻孔样本的实验室研究，加上巴伐利亚上法尔茨的实地地震调查和测井数据，将能够微调和加强对地震反射数据和其他地球物理特征的解释，包括地壳岩性、成分、微观结构、结构和孔隙流体的存在。 该项目涉及对KTB样品衰减特性的频率、孔隙压力和温度依赖性的实验室研究，其目的是确保解释地震和测井数据的重要联系。 这些结果还将补充现有的速度数据。 所收集的数据对于了解该地区遇到的强烈叶理和破裂岩石中的波传播至关重要。 在模拟的原位流体含量，流体压力和温度条件下，从不同深度的KTB样品的衰减特性的系统研究将有助于在相关的实验室结果地下裂缝建模和估计原地应力。 ***