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地应力的声波测井响应及其计算方法

发表时间:2013-11-15  浏览量:1060  下载量:540
全部作者: 徐敬领
作者单位: 中国地质大学(北京)地球物理与信息技术学院,地下信息探测技术与仪器教育部重点实验室
摘 要: 根据岩石物理基础及岩石受力的平衡方程,得出岩石力学参数泊松比和弹性模量与声波纵横波速度的关系,进而获得岩石所受应力与声波时差的响应。在前人工作的基础上建立地应力计算模型,由此可求取岩石在地质历史时期所受的最大应力。应用该方法对高地应力集中区的构造油气藏进行分析,并对地应力与油气藏分布的规律进行探讨。该方法对确定油气藏分布以及在钻井工程中各种钻测参数的选取有一定的指导意义。
关 键 词: 地球探测与信息技术;地应力;弹性模量;泊松比;声波时差
Title: Acoustic respond to crustal stress and its computation
Author: XU Jingling
Organization: Key Laboratory of Geo-detection (Ministry of Education), School of Geophysics and Information Technology, China University of Geosciences (Beijing)
Abstract: The correlation between the acoustic velocity and the rock mechanics parameter, the elastic modulus and Poisson ratio was induced based on the rock�s mechanics properties and dynamics equation, and the response of the crustal stress on the acoustic wave difference was also obtained. A new module, which was founded with the reference of some precedent, was used to estimate the largest value of the crustal stress. Consequently, this method was applied to analysize structural reservoirs in the high stress concentration area, and the relationship between the distribution of the pool and the crustal stress was discussed. This method is valuable in deteminating the distribution of hydrocarbon accumulation and the choice of the parameter during the drilling.
Key words: earth exploration and information technology; crustal stress; elastic modulus; Poisson ratio; wave difference
发表期数: 2013年11月第21期
引用格式: 徐敬领. 地应力的声波测井响应及其计算方法[J]. 中国科技论文在线精品论文,2013,6(21):2090-2096.
 
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