Some AVO failures and what (we think) we have learned

Allen, James L.; Peddy, Carolyn P.; Fasnacht, Timothy

doi:10.1190/1.1436938

Cited by 13 publications

(5 citation statements)

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“…Headache on coughing, in morning after rising or first opening the eyes. This medicine is usually indicated in the complaints after taking cold or getting hot in summer [26] .…”

Section: Bryoniamentioning

confidence: 99%

Novel coronavirus (Covid -19): A pandemic in 2020 and homoeopathy

Bagdi¹

2020

Int. J. Homoeopathic Sci.

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Human history is observing a very strange time fighting an invisible enemy; the novel COVID-19-'Novel' stands for new 'CO' stands for corona, 'VI' for virus and 'D' for disease. The virus originated in bats and was transmitted to humans through yet unknown intermediary animals in Wuhan, Hubei province, China in December 2019. As this pandemic is very new so very less scientific material is available on the topic. COVID-19 is likely to affect people from many countries in many geographical locations. However, at the time this crisis is generating stress throughout the country. Homoeopathy is a system of Integrative Medicine that was developed in Europe at the end of the eighteenth-century employing medicines prepared according to a well-defined procedure starting from mineral, herbal and animal substances. Thus, Homoeopathy medicines have been extensively used for flu-like symptoms and has long record of success during epidemics and pandemics crisis since old modern times. Selection of the most appropriate Homoeopathic medicine is based on an individual's unique symptoms. So Homoeopathic options can form one part of approach in the prevention or immunity boosting for the current Covid-19 outbreak but should always be used alongside with other measures.

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“…Headache on coughing, in morning after rising or first opening the eyes. This medicine is usually indicated in the complaints after taking cold or getting hot in summer [26] .…”

Section: Bryoniamentioning

confidence: 99%

Novel coronavirus (Covid -19): A pandemic in 2020 and homoeopathy

Bagdi¹

2020

Int. J. Homoeopathic Sci.

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“…Although seismic amplitude versus offset (AVO) techniques are being developed primarily as exploration tools for natural gas (Shirley, 1994), the capability of AVO for targeting small anomalies (Allen et al, 1993) indicates that research in this area may also have application in EOR fluid monitoring. Theoretical and laboratory petrophysical studies of acoustical energy inversion over varying offset would provide invaluable information for interpreting fluid saturation (Poggiagliolmi and Allred, 1994).…”

Section: Tools and Techniques For Extraction Of Rock And Fluid Propermentioning

confidence: 99%

Research needs for strandplain/barrier island reservoirs in the United States

Cole¹,

Fowler²,

Salamy³

et al. 1994

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This report was.prepared as an account of work sponsored by an agency of t h e United States Government. Neither t h e United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes a n y legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by t h e United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of t h e United States Government or any agency thereof.

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“…Such anomalies, unfortunately, are very sensitive to the presence of any gas saturation (Biot 1956;Bała and Cichy 2007), which often causes seismically visible bright-spot anomalies to be nonperspective, which have resulted in several exploration failures (e.g. Allen et al 1993;Myśliwiec 2004a, b). Many anomalies have completely different origins, for example, caused by lithofacial changes, thin bedding or uneven compaction in the Miocene sediments.…”

Section: Introductionmentioning

confidence: 99%

Verification of bright spots in the presence of thin beds by AVO and spectral analysis in Miocene sediments of Carpathian Foredeep

2019

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Twin structural traps that lie within the Miocene strata of the Carpathian Foredeep that are localized above Cierpisz and Mrowla-Bratkowice highs exhibit identical bright-spot seismic anomalies, but only those associated with the Cierpisz high are profitable gas reservoirs. Bright spots can be a result of weak gas or water saturation, but also seismic interference known as tuning effect. For these reasons, it is crucial to differentiate between seismic anomalies. In this article, we present the possibilities of verification of seismic anomalies that occur within the siliciclastic Miocene sediments of the Carpathian Foredeep with the application of AVO analysis and spectral decomposition. AVO methodology enabled to limit the number of anomalies that are present in the post-stack seismic data. These anomalies, however, may also be a result of tuning which is common for the heterolithic sequences in the Miocene sediments of the Carpathian Foredeep. For classification of anomalies in the view of the above, spectral decomposition based on the Basis Pursuit algorithm was applied. Spectral decomposition enabled to divide AVO anomalies in those that are the result of gas saturation and the tuning effect. Gas-saturated zones are characterized by higher spectral amplitudes of the lower frequency range, whereas tuning effect yields higher spectral amplitudes for the higher frequency content. This relation is visible for the data set and enables qualitative differentiation for the set of seismic anomalies.

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Some AVO failures and what (we think) we have learned

Cited by 13 publications

References 0 publications

Novel coronavirus (Covid -19): A pandemic in 2020 and homoeopathy

Novel coronavirus (Covid -19): A pandemic in 2020 and homoeopathy

Research needs for strandplain/barrier island reservoirs in the United States

Verification of bright spots in the presence of thin beds by AVO and spectral analysis in Miocene sediments of Carpathian Foredeep

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