Low-Base Frequency Helicopter AEM Data from a Square-Wave System -Helitem2

Adam Smiarowski, Graham Konieczny

Petroleum Exploration Society of Australia (PESA)

... of demonstration surveys were conducted by surveying a known target to compare several helicopterborne time-domain system configurations. Despite having...

Pre-Stack Imaging: Time or Depth? (Paper 25)

Carl Notfors, Peter Whiting, Geoff Mansfield

Geological Society of Malaysia (GSM)

... invariance. Time versus depth domain output is irrelevant. INTRODUCTION The fundamental element of seismic data imaging is the collapse of diffraction...

Spherical Wave Model Tests of VSP-Based Q-Estimation Techniques

Search and Discovery.com

... receiver). A number of frequency points are computed at every receiver location (depth z) according to the desired bandwidth/wavelet. The time-domain...

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... a data adaptive, nonstationary time-domain operator for each offset to whiten the spectrum of the gathers in an AVO complaint way. Further it should...

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

... on the right-hand side of equation 1 is without the  frequency-domain expression for a reverse-time migration in which both fields have been time...

Contribution to Prospect De-risking on the Veslemøy High, SW Barents Sea - An Offshore Vertical Source, Vertical Receiver CSEM Survey; #40868 (2012)

Enric Leon and Jon-Mattis Borven

Search and Discovery.com

... gained acceptance in the petroleum industry as a powerful tool for prospect de-risking. A time domain controlled-source electromagnetic (CSEM) method...

Antialiasing 5D Interpolation; #41497 (2014)

Stephen K. Chiu

Search and Discovery.com

... a new and novel method to address the aliasing problem in MWNI. The first step involves construction of a fully regular initial model in time domain...

An application of FWI with progressive transfer learning

Shirui Wang, Jinjun Liu, Yuchen Jin, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... be obtained by picking stack velocity in the time domain or by ray-based tomographic approach (Thurber 2007, Woodward et al, 2008, Zhou et al. 2001...

ADMM-based full-waveform inversion of ground-penetrating radar data

A. Jalali, H. S. Aghamiry, A. Gholami

International Meeting for Applied Geoscience and Energy (IMAGE)

... iteration, making this technique computationally expensive. So far, a time-domain FWI based on a finite-difference discretization of Maxwell’s equations...

Coherence Cube for Structural and Stratigraphic Delineation in Clastic And Carbonate Sequences

Scott Miller

Abilene Geological Society

... of these stratigraphic features can be seen best in the horizontal or time domain (Figure 3). Prior to Coherence Cube processing the top and bottom...

Deep-learning-based downhole tool electromagnetic telemetry noise attenuation and source separation

Carlos Urdaneta, Arnaud Jarrot, Shirui Wang, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... techniques proven successful in time-series seismic data and source separation techniques proven successful in time-domain speech separation data. This study...

Application of seismic spectral blueing based on generalized S-transform in high-quality reservoir prediction in gas cloud area

Pengzhi Zhang, Lei Liu, Zhiheng Jiang, Zhenglong Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... of seismic data in each frequency band was fitted. Finally, the seismic data in each frequency band were compensated in the time domain and frequency...

EXTENDED ABSTRACT: Regional Mapping in the Ultra-Deepwater Gulf of Mexico

Alfredo Sánchez-Monclú, Claudio Bartolini, B. José C. Vicente

GCAGS Transactions

... of interest. A total of nine geologic horizons (seafloor to basement) were mapped in time domain. First, we carried out the seismic interpretation...

Study on fluid discrimination method based on prestack frequency-dispersion characteristics

Lien Bian, Jun Ming, Yuxiu Wang, Qian Yu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., are mainly carried out in the time domain of seismic data which are often difficult to meet the research needs. In fact, due to the viscoelastic...

Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative

Ao Cai, Colin A. Zelt

International Meeting for Applied Geoscience and Energy (IMAGE)

... the predicted and observed data. WI generally includes frequency-domain (Pratt, 1999; Ravaut et al., 2004) and time-domain (Tarantola, 1984; Mora, 1987...

Overly steep decays in airborne TEM data and their link to chargeability: example from the Howards East District, NT, Australia

Klara Steklova, Ken Lawrie, Esben Auken, Anders V. Christiansen, Gianluca Fiandaca

Petroleum Exploration Society of Australia (PESA)

... problems in 3D in the time domain. Another airborne IP inversion approach to estimate a pseudo-chargeability was presented in Kang et al. (2015) and Kang...

3D Radon transformation with axis dependent curvature

Faruq Akbar, Warren Ho, Sebastian Holland, Rodrigo Fuck

International Meeting for Applied Geoscience and Energy (IMAGE)

... they have shown the method, implemented in the time domain, is effective in removing ground roll linear noise. We introduce two variables α and β...

Hydrocarbon exploration method based on spectral analyses of reflected seismic waves with an introduction to Class A, B and C P-wave dispersion

Robert Wiley, R. Harris Ardis, Scott W. Peters

International Meeting for Applied Geoscience and Energy (IMAGE)

... compression, which manifests itself as stretch in the time domain. Figure 1b: Class C ADF® Amplitude Vs Frequency. The dispersion analogue to Class I AVO...

Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada

J.H. Isaac, D.C. Lawton, C.W. Langenberg

CSPG Bulletin

... was to improve the seismic imaging of the complex structures that form the mountain. Processing in the time domain was designed to attenuate noise...

How Does the Impact of Completions Change Over the Life of a Well? A Comparison Across the Major US Unconventional Plays Using Machine Learning

T. Cross, K. Long, D. Niederhut, A. Cui

Unconventional Resources Technology Conference (URTEC)

.... While the mechanism of this analysis makes for straightforward economic analysis of potential designs, it suffers from inaccuracy in the time domain...

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

Cyril Wong

Geological Society of Malaysia (GSM)

... and down going energy. In time domain reflection from sea surface ( R - -1 ) exhibit a polarity reversal on hydrophone but not on the geophone...

Delineation of fracture zone using 2D electrical resistivity and induced polarisation methods

Douglas Law Shek Houng, Khairul Arifin Mohd. Noh, Abdul Ghani Md Rafek

Geological Society of Malaysia (GSM)

... measures the electrode polarisation caused by conductive minerals in the subsurface, displaying the chargeability readings of the time-domain...

Abstract: Spectral Decomposition of Seismic Forward Modelled Outcrops of Deepwater Channel and Levee Deposits; #90063 (2007)

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Abstract: Unraveling Complex Velocity Anomalies -A Case Study in Bahrah Area, Kuwait, by Anjaneyulu Singavarapu, Abdul malik Salah abdulla, Manowar A.M. Ahmed, Sanjeev S Thakur, Hanan Al-Owihan, and Ramarao Busi venkata; #90105 (2010)

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Importance of Good Time to Depth Conversion method to Reduce GRV Uncertainties of Producing Fields in the South Sumatra Block�.

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