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The AAPG/Datapages Combined Publications Database

Showing 18,799 Results. Searched 200,357 documents.

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Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... not apply a post-migration spectral whitener or deconvolution, yet the output frequency band is appropriate for the full spectrum of the acquisition...

2014

Seismic site effect of Bukit Tinggi from microtremor analysis

Abdul Halim Abdul Latiff, Amin Esmail Khalil

Geological Society of Malaysia (GSM)

... Baik, Bukit Tinggi between 24th to 28th January 2018 (Figure 2). The ambient data was then processed and transform into frequency spectrum for HVSR...

2018

Marine Vibrator Concepts for Modern Seismic Challenges

Andrew Long, Rune Tenghamn

Petroleum Exploration Society of Australia (PESA)

..., 2000). As illustrated in Figure 1, the frequency spectrum of the emitted source wavefield is band-limited (about 7-120 Hz at the 12 dB down points...

2018

A method of relative impedance holography-inversion based on reflection coefficient inversion

Jiangfeng Zheng, Jialin Sun, Zongyu Zhen, Shaoxuan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...) 𝑤 Where r(t, f) is the time-frequency spectrum of r(t), 𝑡 𝑤 is half-length of the time window. Assuming a convolutional seismogram and known wavelet...

2022

Abstract: Empirical Mode Decomposition Based Instantaneous Spectral Analysis and its Applications to Heterogeneous Petrophysical Model Construction; #90171 (2013)

Jun-Wei Huang and Bernd Milkereit

Search and Discovery.com

..., Ontario, CANADA Summary Spectral analysis is an important step in seismic data processing and interpretation. The frequency contents of seismic...

2013

Joint designature of data with a diversity of sources

Shuki Ronen, Thibaut Allemand, Stphane Laroche, Philippe Herrmann, Hamish Macintyre, Maksym Kryvohuz, Guido Baetan

International Meeting for Applied Geoscience and Energy (IMAGE)

... sources. Introduction The need for low frequency seismic data is well recognized (Ten Kroode et al, 2013). The requirement is coming from imaging...

2022

Abstracts: Seismic Attributes on Frequency-enhanced Seismic Data; #90173 (2015)

Satinder Chopra, Kurt J. Marfurt, Somanath Misra

Search and Discovery.com

...Abstracts: Seismic Attributes on Frequency-enhanced Seismic Data; #90173 (2015) Satinder Chopra, Kurt J. Marfurt, Somanath Misra AAPG Search...

2015

Abstract: Separation of Geometric Spreading, Scattering and Intrinsic Attenuation in VSP data; #90187 (2014)

Amin Baharvand Ahmadi and Igor Morozov

Search and Discovery.com

... increases with frequency, which is related to the relatively slow roll-off of the spectrum of P-wave velocity (Figure 2, right). Figure 3 shows...

2014

Multi-Attribute Analysis of a Low-Frequency Passive Seismic Method for Hydrocarbon Indicator Prospecting: Case Study in Cemara Field, Cirebon, West Java, Indonesia

Dimmas Ramadhan, Andri Dian Nugraha, Afnimar, Muhammad Fadhillah Akbar, Guntur Mulyanagara

Indonesian Petroleum Association

... is grouped by similarity to its peak frequency characteristics from the FFT spectra (blue dotted line). Figure 9 - Spectrum attributes mapping revised using...

2013

Abstract: Estimation of Q: a Comparison of Different Computational Methods; #90187 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... to the calculated spectral ratios over a chosen frequency band. The spectrum modeling method compares the amplitude spectra of the local wavelets directly...

2014

Abstracts: FX Cadzow / SSA Random Noise Filter: Frequency Extension; #90173 (2015)

Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser

Search and Discovery.com

...Abstracts: FX Cadzow / SSA Random Noise Filter: Frequency Extension; #90173 (2015) Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser AAPG Search...

2015

ABSTRACT: Lacustrine and Marine Sequences - How They Differ in Phase and Architecture; #90007 (2002)

Dag Nummedal

Search and Discovery.com

... factors that control insolation at low latitudes. In contrast, the marine dO18 curve for the Pliocene shows a distinct peak in the frequency spectrum...

Unknown

Abstract: Broadband Seismic … What Are the Benefits and Pitfalls for E&P Geoscience Workflows; #90310 (2017)

Cyrille Reiser

Search and Discovery.com

... with the towed dual-sensor streamer seismic (Tenghamn et al., 2007), delivering extensions of the seismic frequency on the low and high side...

2017

Frequency-dependent seismic-stratigraphic and facies interpretation

Hongliu Zeng

AAPG Bulletin

... thickness, with wavelets varying with the frequency spectrum of similar band ratios and phase character (Figure 1B)frequency tuning (Zeng, 2010). Thickness...

2013

Observations of geophone spurious resonance

Steve Hearn, Shaun Strong, Andrew Kinmont

Petroleum Exploration Society of Australia (PESA)

... [email protected] SUMMARY A detailed understanding of the frequency response of geophones is critical for the design and quality control of broadband...

2019

Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015)

Juefu Wang and Shaowu Wang

Search and Discovery.com

... FFT is applied to each temporal frequency slice along inline, crossline, and azimuth. The 1D DFT is applied along offset within each azimuth sector...

2015

Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia

Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell

Petroleum Exploration Society of Australia (PESA)

... to provide greater signal content at the low end of the frequency spectrum, vital for better deep data imaging and interpretation. The deghosting...

2016

Syntactic Simulation of 1-D Sedimentary Sequences in a Coal-Bearing Succession Using a Stochastic Context-Free Grammar: DISCUSSION

W. A. Read

Journal of Sedimentary Research (SEPM)

..., High-frequency sequences and their stacking patterns: sequence-stratigraphic evidence of high-frequency eustatic cycles: Sedimentary Geology, v. 70, p...

1997

Finding a Better Path to Impedance Inversion; #41722 (2015)

Amit Kumar Ray, Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

.... As discussed earlier, the low-frequency band (less than 10 Hz) of the frequency spectrum is missing in the seismic data – and consequently, the transformed...

2015

Possible Effects of Active Faulting on Low Frequency Radio Propagation, Houston, Texas Metropolitan Area

Allen F. Mattis

Houston Geological Society Bulletin

... into the field. A variety of possible effects of earthquakes on the low frequency radio spectrum have been described, but these studies have generally...

1995

Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

... (F-SE) area, the authors faced an issue of limited low-frequency spectrum in the seismic data because of shallow tow streamers used in the acquisition...

2019

How to Improve the Definition of Seismic Reflection Data

D. Michon, R. Garotta

Indonesian Petroleum Association

... sources or equipment will be built. Of course sources and equipment are involved; but in fact the narrowness of the signal spectrum is is due to the space...

1979

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