岩石热弹性理论及其在地球物理中的应用  

Review of thermoelasticity theory in rocks and its applications in geophysics

作　　者：王志伟 符力耘 韩同城 巴晶[3] Wang Zhiwei;Fu Li-Yun;Han Tongcheng;Ba Jing(School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China;Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China),Qingdao 266580,China;School of Earth Sciences and Engineering,Hohai University,Nanjing 211100,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,青岛266580 [2]中国石油大学(华东)深层油气重点实验室,青岛266580 [3]河海大学地球科学与工程学院,南京211100

出　　处：《地球与行星物理论评》2021年第6期623-633,共11页Reviews of Geophysics and Planetary Physics

基　　金：中央高校基本科研业务费专项资金资助;中国科学院战略性先导专项(XDA14010303)。

摘　　要：热弹性力学研究弹性体在非均匀温度场影响下的变形问题,它是经典弹性力学的推广.和弹性力学相比,热弹性理论考虑温度的影响,更加准确地阐述弹性介质在温度影响下的物理状态.岩石物理实验证明了岩石存在热弹现象,即岩石的弹性参数(特别是速度和弹性模量)随着温度的变化而变化.岩石热弹性理论为由温度引起的弹性模量及速度异常提供了解释.本文回顾了岩石热弹性的主要理论模型,介绍了热弹性理论相关的岩石物理实验及数值模拟工作,讨论了热弹性理论在地球物理领域应用的研究进展,旨在将热弹性理论引入深层高温环境油气勘探应用中,支撑深层温度异常地球物理预测技术的发展.Thermoelasticity describes the properties of elastomer under the influence of temperature,which is the generalization of elasticity.Compared with elasticity,thermoelasticity theory is more accurate to describe the physical state of elastic media under the influence of temperature.A large number of petrophysical experiments demonstrate the thermoelastic phenomenon of rocks,that is,the physical parameters(especially velocity and elastic modulus)of rocks change with temperature.The thermoelastic theory of rocks provides an explanation for the elastic moduli and velocity anomaly of rocks caused by temperature.In this paper,we review the progress of research on the application of thermoelastic theory in geophysics.Furthermore,we introduce main theoretical models experimental measurements,and numerical simulations related to thermoplastic theory.We introduce the thermoelastic theory into deep oil and gas exploration with the attempt to support the development of geophysical techniques for prediction of deep temperature anomalies.

关 键 词：热弹性理论 岩石物理性质 弹性模量 波传播速度 

分 类 号：P313[天文地球—固体地球物理学]