Abstract: Inverse Modeling the Quality Factor in an Attenuating Medium; #90171 (2013)

Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

... to be frequency-independent or only slowly varying with frequency. The information about the relaxation spectrum of the medium is contained in the spectral...

Abstracts: Microseismic Source Inversion in Anisotropic Media; #90173 (2015)

Scott Leaney, Chris Chapman, and Tadeusz Ulrych

Search and Discovery.com

... amplitude spectrum further analyzed with a 3-term fit to extract the low frequency scalar moment and corner frequency. For the nonlinear problems...

Antialiasing 5D Interpolation; #41497 (2014)

Stephen K. Chiu

Search and Discovery.com

... initial model are typically not aliased and can be used to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing...

Geological and Structural Interpretation of Ado-Ekiti Southwest and its Adjoining Areas Using Aeromagnetic Data; #30407 (2015)

Ayodeji Jayeoba and Dare Odumade

Search and Discovery.com

.... In frequency domain, one can prepare and analyse the distribution of short to long wavelength across all measured high to low frequency. The power spectrum can...

Effect Rule and Mechanism of Bedding Fractures on the Fluid Flow in Tight Reservoir with Extremely High Pressure

Yongqiang Tang, Maolei Cui, Pufu Xiao, Zengmin Lun, Rui Wang, Shuxia Zhao

Unconventional Resources Technology Conference (URTEC)

... resonance, the bedding fractures under different confining pressures (up to 30MPa) are characterized by the transverse relaxation time (T2) spectrum...

Emphasizing Vibrations

Paul Wood

GEO ExPro Magazine

... of extending the frequency content or bandwidth of seismic signals, especially at the low-frequency end, in order to achieve better vertical resolution...

Some Results of Dynamic Analysis of Reflected Waves in the Area of the Kuleshov Oil Field

A. I. Belyayeva, O. I. Rogoza, S. A. Semenova

Petroleum Geology: A Digest of Russian Literature

.... The investigation included a comparative study of the amplitude and frequency characteristics of waves reflected from horizons that occur above...

Calibration of Continuous Wavelet Transform (CWT) Fracture Closure Detection Using Laboratory Hydraulic Fracturing Experiments

Mohamed A. Gabry, Zhi Ye, Amr Ramadan, Ahmad Ghassemi, Mohamed Y. Soliman

Unconventional Resources Technology Conference (URTEC)

... frequency levels by convolving it with a wavelet (a short wavy signal) to identify closure events based on the stabilization of average signal energy...

Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013)

Guangpin Li, Johnathan Linfoot, and Bruce Hobbs

Search and Discovery.com

...Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013) Guangpin Li, Johnathan Linfoot, and Bruce Hobbs 3D...

Assessing the Influence of Untrackable Horizons on Impedance Inversion; #42163 (2017)

Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt

Search and Discovery.com

... its frequency spectrum toward higher frequencies, and thus can define some reflections better, making them amenable for tracking. A better alternative...

Seismic simulations of experimental strata

Lincoln Pratson, Wences Gouveia

AAPG Bulletin

... made up of frequencies from 0 to 60 Hz and having a peak frequency of about 18 Hz. In contrast, the spectrum of the reflectivity data (Figure 9B...

Abstract: Crack-tip Stress Field, Coulomb Failure, and the Spectral Characteristics of Tensile Rupture; #90174 (2014)

David W. Eaton and Chad M. Hogan

Search and Discovery.com

... those computed directly using the output of geophones and seismometers, exhibit a spectral peak near the corner frequency that scales with seismic...

Mapping Stratigraphic Traps with Seislog

Roy O. Lindseth

Indonesian Petroleum Association

... be removed by stacking, which is a type of filtering, and the application of other related procedures so that the resulting frequency spectrum is largely...

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

... wavelength component is determined by a reflection’s apparent dip and frequency spectrum. Since wavelength equals apparent velocity divided by frequency...

Abstract: Challenges of 4C Seismic Acquisition and Processing Offshore Sarawak (Paper 21)

Cyril Wong

Geological Society of Malaysia (GSM)

.... In frequency domain, their corresponding spectra are complementary and their combination gives a flatter spectrum. After combination the two components i.e. p...

Abstract: Innovative QCs for More Effective 4D Processing; #90187 (2014)

Cyril Saint Andre, Benoit Blanco, Christian Hubans, and Benoit Paternoster

Search and Discovery.com

.... Streamers dived down to 9 meter on some lines. The streamer depth, which impacts the signal notch frequency in the spectrum of the base survey, led...

A New Seismic Attribute Aids to Map the Embedded Geological Features from Low Bandwidth Seismic Data; #40720 (2011)

R.C.P. Saxena and S.K. Pokhriyal

Search and Discovery.com

... seismic data has a dominant frequency of 18 Hz till BCS (Barail Coal Sands) and 16-18 Hz below BCS. Methodology The flow diagram of the methodology...

Power-Spectrum Analysis of Two "Varved" Argillites in the Huronian Cobalt Series (Precambrian) of Canada

Togwell A. Jackson

Journal of Sedimentary Research (SEPM)

...Power-Spectrum Analysis of Two "Varved" Argillites in the Huronian Cobalt Series (Precambrian) of Canada Togwell A. Jackson 1965 Vol. 35 No. 4...

First Implementation of Hybrid Fiber Optic Cable in Indonesia - Carbon Reduction through Leading-Edge Technology

Marsha Sakina, Dinda Larasati Rahmani, Fajar Tri Prasetia, Cikko Majesta, Francesco Miranda

Indonesian Petroleum Association

... between VSP and sonic velocity (left). The frequency spectrum of seismic (red) and VSP image (blue) (right). Figure 21 - Correlation of Synthetic...

Enhancing geological features delineation by combining a relative geological time model with the matching pursuit spectral decomposition

Fabien Cubizolle, Benjamin Durot, Lory Evano

International Meeting for Applied Geoscience and Energy (IMAGE)

...). For the three methods described above, a spectrogram can be estimated along a trace representing its time-frequency spectrum and provides a way...

Simultaneous source acquisition, accuracy, and deblending

Ray Abma

International Meeting for Applied Geoscience and Energy (IMAGE)

..., the threshold in the inversion process should be frequency-dependent, allowing each frequency to be accurately deblended regardless of the amplitude...

Detection of Fluvial Systems Using Spectral Decomposition (Continuous Wavelet Transformation) and Seismic Multi-Attribute Analysis … A New Potential Stratigraphic Trap in the Carbonera Formation, Llanos Foothills, Colombia; #42281 (2018)

Essam Saeid, James Kellogg, Christopher Kendall, Ibraheem Hafiz, Zyaid Albesher

Search and Discovery.com

... of interest. Figure 4. (a) Frequency spectrum for the zone of interest. (b) 3-D horizon probe of Carbonera Fm (C-1 to C-8) showing a reverse fault (white...

Fast anisotropic viscoelastic modeling and application in quantitative seismic reservoir characterization

Sirui Tan, Sunwoong Lee, John E Anderson, Haiyang Wang, Olivier Burtz, Partha Routh, Rongrong Lu, Yang Yu

International Meeting for Applied Geoscience and Energy (IMAGE)

...-frequency seismic signals in virtually every seismic data set, especially for seismic arrivals from the deep section of the Earth. Attenuation effect...

Abstract: Reservoir Properties from Unbiased Seismic Inversion, by Huseyin Ozdemir; #90105 (2010)

Search and Discovery.com

AAPG Studies in Geology 47: Geological Perspectives of Global Climate Change, Chapter 11 - The Search for Patterns in Ice-Core Temperature Curves

Davis, John C.; Bohling, Geoffrey C.

AAPG Special Volumes

..." that we can decompose by a Fourier transformation into a set of sinusoids, each having a specific frequency and phase angle. The ice-core record...