Hydrocarbon microtremors interpreted as nonlinear oscillations driven by oceanic background waves

Holzner, R.; Eschle, P.; Dangel, S.; Frehner, Marcel; Narayanan, Chidambaram; Lakehal, Djamel

doi:10.1016/j.cnsns.2007.06.013

Cited by 35 publications

(28 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The micro-tremor signals are lying in the range 2-4 Hz with their apparent peak anomalies measured approximately at 3 Hz, in good agreement with previous work [6]- [7]. As claimed by [9], both spectral and spectrogram analyses of broadband-noise signals can then be used to detect the possible location of a potential hydrocarbon reservoir.…”

Section: Indication Of Hydrocarbonsupporting

confidence: 66%

“…Anomaly amplitude in micro-tremor signals in the frequency range 1-6 Hz at a peak of 2-4 Hz has been reported by previous work [6]- [7], focusing upon hydrocarbon reservoir detection. These studies claimed micro-tremor amplitude anomalies apparent in the presence of a potential hydrocarbon reservoir.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 6 shows that the power spectral densities corresponding to the signal amplitudes from all components achieve their maximum between 2 and 4 Hz (at about 3 Hz). Following [6]- [7], these features describe a possible location for a potential hydrocarbon reservoir above the YOGI local station. It should be noted here that direct comparisons between Fig.…”

Section: No Indication Of Hydrocarbonmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of a Potential Hydrocarbon Reservoir in a Yogyakarta Basin Using Broadband-Noise Analysis

2018

GEOMATE

View full text Add to dashboard Cite

ABSTRACT:The search for hydrocarbon reservoirs through geophysical exploration in a particular basin has been in common recently. In this study, a potential hydrocarbon reservoir situated in a Yogyakarta Basin in Central Java, Indonesia was assessed using broadband-noise spectral analysis of spectrograms recorded by 2 local seismic stations: UGM and YOGI, where the broadband data included 3 components of waveforms. The aims of this study are thus twofold; firstly, we report the characteristics of micro-tremor seismic signals generated by a hydrocarbon reservoir in the region of interest and then secondly, we examine these findings in the context of determining which seismic station is likely to be positioned above the potential reserve for hydrocarbons and estimating the depth of a hydrocarbon reservoir. The results of broadband-noise seismic experiments revealed that the peak of micro-tremor anomalies associated with a hydrocarbon reserve was only detected by YOGI station. This primary finding suggests that, instead of UGM station, the YOGI station is arguably lying above a potential hydrocarbon reservoir with the layer depth is estimated to be 12-35 m. Discussions on these results include the practical use of broadband-noise experiments with a low pass-filtered frequency in geotechnical and industrial applications.

show abstract

Section: Indication Of Hydrocarbonsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Section: No Indication Of Hydrocarbonmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of a Potential Hydrocarbon Reservoir in a Yogyakarta Basin Using Broadband-Noise Analysis

2018

GEOMATE

View full text Add to dashboard Cite

show abstract

“…Moreover, our study provides support for the low-frequency anomaly of hydrocarbon microtremors, which is based on the assumption that oil blobs possess resonant frequencies that are very low, that is, in the 1-10 Hz range (Holzner et al, 2009). Indeed the resonant frequency measured in the 3-mm sphere packing is quite low, namely, 17 Hz.…”

Section: Discussionmentioning

confidence: 73%

“…Blob resonance also has been linked to a passive seismic technology used to detect hydrocarbon reservoirs. Holzner et al (2009) attribute a high correlation between the presence of hydrocarbon reservoirs and lowfrequency spectral anomalies computed from passively recorded seismic data to the resonance of hydrocarbon blobs. However, Broadhead (2010) tests various resonance amplification models to show that the resonant frequency of blobs is too high to fall in the frequency range of a hydrocarbon microtremor.…”

Section: Introductionmentioning

confidence: 96%

Theoretical and experimental study of resonance of blobs in porous media

2012

View full text Add to dashboard Cite

We theoretically and experimentally investigated the frequency response of blobs in porous media to an oscillatory pressure difference. (The term blob refers to a connected liquid mass that occupies one or more pores.) To predict the frequency response analytically, we formulated a simple model pore system consisting of a blob in a capillary tube. This model accounts for the frequency-dependent viscous pressure drops in the blob and the surrounding liquid and for the dynamic capillary pressure that occurs due to contact line pinning. By using the planar laser-induced fluorescence technique, we visualized the dynamic response of blobs in porous media. As predicted by our theory, air and liquid blobs surrounded by an immiscible liquid exhibited resonance in a capillary tube. Furthermore, we showed, for the first time, that a liquid blob in a sphere-packing medium exhibits resonance.

show abstract