Passive seismic imaging at reservoir depths using ambient seismic noise recorded at the Otway CO2 geological storage research facility

Passive seismic imaging at reservoir depths using ambient seismic noise recorded at the Otway CO2 geological storage research facility
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使用奥特韦二氧化碳地质封存研究设施记录的环境地震噪声对储层深度进行被动地震成像

DOI:
10.1093/gji/ggx109
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发表时间:
2017
影响因子:
2.8
通讯作者:
R. Pevzner
R. Pevzner
中科院分区:
地球科学2区
文献类型:
--
作者:
N. Issa;D. Lumley;R. Pevzner

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我们证明了快速收敛(<60分钟)的被动地震图像到油藏深度(2.0公里)在CO2CRC奥特威CO2地质封存研究设施,澳大利亚,使用环境地震噪声(SNR)连续记录与埋地检波器阵列。我们的被动地震图像是通过应用地震数据处理和干涉测量技术创建的,并表明我们可以从环境噪声数据中恢复面波和体波。使用记录的时间间隔,其中体波占主导地位的地震波,我们生成的被动地震图像,以及与传统的主动源三维地震数据在现场成像的主要反射体。我们提出了一个数学模型的图像收敛,其中的方差收敛成反比的记录时间,并显示第一次一个很好的协议之间的数学模型和观察到的收敛速度的干涉图像从Doppler。
We demonstrate rapid convergence (<60 min) of passive seismic images down to reservoir depths (∼2.0 km) at the CO2CRC Otway CO2geological storage research facility, Australia, using ambient seismic noise (ASN) recorded continuously with a buried geophone array. Our passive seismic images are created by applying seismic data processing and interferometry techniques, and show we can recover both surface and body waves from the ambient noise data. Using a recording time interval in which body waves dominate the ASN, we generate passive seismic images that correlate well with the major reflectors imaged by conventional active-source 3-D seismic data at the site. We present a mathematical model for image convergence, where the variance converges inversely proportional to recording time, and show for the first time an excellent agreement between a mathematical model and the observed convergence rate of interferometric images made from ASN.
DOI: 10.1190/geo2010-0188.1
发表时间: 2011-11-01
期刊: GEOPHYSICS
影响因子: 3.3
作者:
Nakata, Norimitsu;Snieder, Roel;Matsuoka, Toshifumi
通讯作者: Matsuoka, Toshifumi