钻孔
补偿(心理学)
温度测量
地质学
分布式声传感
信号(编程语言)
低频
声学
地震学
材料科学
岩土工程
光纤传感器
电信
工程类
复合材料
精神分析
物理
量子力学
程序设计语言
纤维
计算机科学
心理学
作者
E. Sidenko,Roman Pevzner,Konstantin Tertyshnikov
出处
期刊:Seg Technical Program Expanded Abstracts
[Society of Exploration Geophysicists]
日期:2021-10-30
标识
DOI:10.1190/segam2021-3584087.1
摘要
Distributed acoustic sensing (DAS) is an emerging technology that has already found a widespread application in seismic acquisition and reservoir monitoring. DAS is designed to register acoustic vibrations, but it is also sensitive to temperature variations. The effect of temperature variations on DAS recordings can be observed as a low frequency signal (< 1Hz). It is critical to be able to separate the temperature effect on DAS records from seismic signals, especially if one is utilizing low frequencies for passive seismic measurements. In this study, we show how borehole DAS recordings can be affected by the temperature change during the water injection into a deep formation at the Otway site. Joint analysis of distributed acoustic and temperature sensing data shows that there is a linear dependency between the strain and slow temperature change. Using such relation, the temperature effect can be compensated.
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