高温影响下页岩岩石的声学特性实验研究

doi:10.11885/j.issn.1674-5086.2019.08.29.02

西南石油大学学报(自然科学版) ›› 2019, Vol. 41 ›› Issue (6): 35-43.DOI: 10.11885/j.issn.1674-5086.2019.08.29.02

高温影响下页岩岩石的声学特性实验研究

熊健¹, 黄林林¹, 刘向君¹, 周文², 梁利喜¹

1. 油气藏地质及开发工程国家重点实验室·西南石油大学, 四川成都 610500;
2. 油气藏地质及开发工程国家重点实验室·成都理工大学, 四川成都 610059

收稿日期:2019-08-29 出版日期:2019-12-10 发布日期:2019-12-10
通讯作者: 刘向君,E-mail:liuxiangjunswpi@163.com
作者简介:熊健,1986年生,男,汉族,湖北荆州人,副研究员,主要从事复杂地层岩石物理等方面的研究工作。E-mail:361184163@qq.com;黄林林,1996年生,男,汉族,陕西渭南人,硕士研究生,主要从事岩石物理与测井等方面的研究工作。E-mail:1344727064@qq.com;刘向君,1969年生,女,汉族,四川资中人,教授,博士生导师,主要从事岩石力学及岩石物理、井壁稳定和防砂完井、测井交叉方面的教学与研究工作。E-mail:liuxiangjunswpi@163.com;周文,1962年生,男,汉族,贵州六盘水人,教授,博士生导师,主要从事非常规油气地质方面的教学与科研工作。E-mail:zhouwen62@cdut.edu.cn;梁利喜,1976年生,男,汉族,河南新乡人,副教授,博士(后),主要从事井壁稳定技术、岩石物理与岩石力学、石油工程测井等相关研究。E-mail:liangzby@163.com
基金资助:
国家自然科学基金（41872167）；四川省科技计划重点研发项目（2018JZ0079）

An Experiment Study on the Effect of High Temperature on the Acoustic Properties of the Shale

XIONG Jian¹, HUANG Linlin¹, LIU Xiangjun¹, ZHOU Wen², LIANG Lixi¹

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China

Received:2019-08-29 Online:2019-12-10 Published:2019-12-10

摘要/Abstract

摘要： 以四川盆地龙马溪组页岩为研究对象，研究了高温处理后页岩岩样物理性质的变化规律，讨论了温度对页岩岩石声波特性的影响，同时，也研究了高温影响下页岩岩石动弹性参数的变化规律。研究结果表明，当作用温度低于400℃时，温度对页岩表观颜色和物理性质影响较小，而当作用温度超过400℃时，页岩表观颜色逐渐由黑色变为灰白色，且页岩质量下降快、体积膨胀率上升快，造成页岩密度下降快；随着温度增加，页岩声波速度不断下降，且声波主频不断下降，而页岩声波衰减系数不断增大，且声波衰减系数对页岩热损伤效应的敏感性更强；随着温度增加，页岩损伤因子增大，同时，页岩动态泊松比也呈增大趋势，而页岩动态弹性模量、体积模量、剪切模量呈下降趋势。

关键词: 龙马溪组页岩, 高温, 声学特性, 动弹性参数, 影响

Abstract: Taking the organic shale of Longmaxi Formation in Sichuan Basin as the research object, the variation laws of physical properties of shale rock samples after high temperature treatment are investigated. The influences of high temperature on the acoustic characteristics of shale rocks are discussed. And the variation laws of dynamic elastic parameters of shale rocks under high temperature influence are also studied. The results show that when the operating temperature is lower than 400℃, the temperature has little effect on the apparent color and physical properties of the shale, but when the operating temperature exceeds 400℃, the apparent color of the shale gradually changes from black to grayish white, and the shale quality declines rapidly, the volume expansion rate rises rapidly, the shale density decreases rapidly. As the temperature increases, the shale acoustic wave velocity decreases continuously, and the acoustic wave dominant frequency decreases, while the shale acoustic wave attenuation coefficient increases continuously, and the acoustic wave attenuation coefficient is more sensitive to the thermal damage effect of shale rock than the acoustic wave velocity. As the temperature increases, the shale damage factor increases, and the dynamic Poisson's ratio of shale also increases, while the dynamic elastic modulus, bulk modulus and shear modulus of shale rock samples decrease.

Key words: Longmaxi Formation shales, high temperature, acoustic property, dynamic elasticity parameters, effect

中图分类号:

TE12

熊健, 黄林林, 刘向君, 周文, 梁利喜. 高温影响下页岩岩石的声学特性实验研究[J]. 西南石油大学学报(自然科学版), 2019, 41(6): 35-43.

XIONG Jian, HUANG Linlin, LIU Xiangjun, ZHOU Wen, LIANG Lixi. An Experiment Study on the Effect of High Temperature on the Acoustic Properties of the Shale[J]. 西南石油大学学报(自然科学版), 2019, 41(6): 35-43.

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高温影响下页岩岩石的声学特性实验研究

An Experiment Study on the Effect of High Temperature on the Acoustic Properties of the Shale

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