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The AAPG/Datapages Combined Publications Database

Showing 18,837 Results. Searched 200,639 documents.

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West of Shetland: SHarp Broadband 2D Regional Well Tie Survey

Ian T. Edwards, Global Multi-Client Surveys and New Ventures

GEO ExPro Magazine

.... In addition, towing deep boosts the low frequency response of the receiver ghost and hence increases the signal strength at ultra-low frequencies...

2014

The Characteristics of the Magnetic Anomaly and Magnetosphere Structure in the Nansha Islands and Surrounding Areas

Zhang Yixiang

Geological Society of Malaysia (GSM)

.... According to the linear gradient of high frequency part of the power spectrum, the magnetic body's bottom surface (or called curieisotherm) in this region...

1995

Abstracts: The Integrated Use of new Wireline Technologies to Reduce Full Bore Core Requirements and Cost in the Canadian Oil Sands; #90173 (2015)

Grant D. Ferguson and Amer Hanif

Search and Discovery.com

... Lithology and Mineralogy”, SPE 102770, presented in San Antonio in 2006. From the inelastic spectrum the tool is able to provide a formation weight...

2015

Abstracts: Noise Examples from Two Microseismic Datasets; #90173 (2015)

Andy St-Onge and David Eaton

Search and Discovery.com

... spectrum of the noise ranges from D.C. to about 800 Hz., at which point it drops to the 1333 Hz. Nyquist frequency. It can be shown that most...

2015

The Origin of High-Frequency Platform Carbonate Cycles and Third-Order Sequences (Lower Ordovician El Paso Gp, West Texas): Constraints from Outcrop Data and Stratigraphic Modeling

R. K. Goldhammer, P. J. Lehmann, P. A. Dunn

Journal of Sedimentary Research (SEPM)

...The Origin of High-Frequency Platform Carbonate Cycles and Third-Order Sequences (Lower Ordovician El Paso Gp, West Texas): Constraints from Outcrop...

1993

Chapter Nine: Inversion and Interpretation of Impedance Data

Rebecca B. Latimer

AAPG Special Volumes

... using log data with a full spectrum of frequencies. We now need to discuss the limitations of the data using seismic frequency ranges. Band...

2011

Rapid field identification of LCT pegmatite mineralogy: Application of portable Raman spectroscopy

Sophie Perring, Nigel Brand

Petroleum Exploration Society of Australia (PESA)

... a monochromatic light from a laser is directed onto a sample (Neuville, 2014). Most of this light scatters and remains the same frequency, however a very...

2019

Automating the thresholding of multi-stage iterative source separation with priors using machine learning

Nam Pham, Rajiv Kumar, Sunil Manikani, Yousif Izzeldin Kamil Amin, Phillip Bilsby, Massimiliano Vassallo, Tao Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... iterative source separation with priors (MS-ISSP) for seismic deblending. From the frequency-wavenumber (FK) transform of seismic data with interference noise...

2024

Prospectivity and Petroleum Systems Modelling of the Offshore Lamu Basin, Kenya: Implications for an Emerging Hydrocarbon Province, #10700 (2015)

Olivia Osicki, Oliver Schenk, and Duplo Kornpihl

Search and Discovery.com

... as between, lithological units. Broadband data enhances both external shape and internal reflectivity due to its broader frequency spectrum. For example...

2015

High-Resolution Three-Dimensional Water Saturation Prediction - A Case Study from Offshore Nile Delta; #42206 (2018)

Islam A. Mohamed, Ahmed Hosny, Abdulrahman Ali Mohamed

Search and Discovery.com

... Variogram model Power Spectrum • Seismic Power Spectrum • Prior model Frequency (Hz) Stochastic Inversion Geostatistical Prestack Inversion...

2018

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... Furthermore, the length and frequency content of the wavelet, as well as the sample rate of the seismic trace, determine which reflection events will be seen...

1980

Interpolated fast and computational-efficient multidimensional singular spectrum analysis (I-FMSSA) for compressive simultaneous-source data processing

Rongzhi Lin, Yi Guo, Fernanda Carozzi, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

...Interpolated fast and computational-efficient multidimensional singular spectrum analysis (I-FMSSA) for compressive simultaneous-source data...

2022

Understanding Dynamic Behavior of Reservoirs During Microseismic Monitoring

Maria A. Krasnova, Jamie P. Rich, Evgeny M. Chesnokov

Unconventional Resources Technology Conference (URTEC)

... of P-waves has shown that the character of the recorded signal and the P-wave spectrum are being repeated with high precision (correlation...

2013

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... stacking (Bakulin et al., 2018) to enhance the low frequency signals (Figure 1). Due to the geological complexity and the lack of a good starting model...

2022

High - Quality, Efficient Broadband Acquisition & Processing-An Integrated Approach

Richard Patenall, Dominic Fell, Timothy Brice, Saeeda Hydal

Indonesian Petroleum Association

... applied. The characteristics of this type of source are that it produces a notch-free far-field spectrum below 150 Hz, it increases the low-frequency...

2014

4D Seismic Bandwidth and Resolution Analysis for Reservoir Fluid-flow Model Applications

Rafael Souza, David Lumley, Jeffrey Shragge, Alessandra Davolio, Denis Schiozer

Petroleum Exploration Society of Australia (PESA)

... at reservoir levels due to the lack of both lower and higher frequencies in the seismic spectrum, while fluid-flow simulations commonly run...

2019

Theory and Applications of Time Series Analysis to Wireline Logs: Chapter 5

John H. Doveton

AAPG Special Volumes

... the useful suggestion that the "trend in the mean" should be equated with all frequency components whose wavelength exceeds the time series record...

1994

Repeat DAS and DTS Production Logs on a Permanent Fiber Optic Cable for Evaluating Production Changes and Interference with Offset Wells

Veronique Mahue, Erick Jimenez, Peter Dawson, Kirk Trujillo, Robert Hull

Unconventional Resources Technology Conference (URTEC)

... using engineered fiber can detect the changes in strain that are induced by thermal changes in various frequency bands. These data can be examined...

2022

Abstract: Quantitative Characterization of Fracture Frequency Variations Using a Linear Piecewise Regression Analysis and the Akaike Information Criterion; #90308 (2017)

Alex P. O’Hara, Robert D. Jacobi

Search and Discovery.com

...Abstract: Quantitative Characterization of Fracture Frequency Variations Using a Linear Piecewise Regression Analysis and the Akaike Information...

2017

Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution

Peng Yong, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

...; Fichtner et al., 2008) is applied to obtain the time-frequency spectrum, and the Gabor transform pair can be given by 1 fˆ(t, ω) = G[ f ](t, ω) = √ 2π 1 f...

2022

Seismic intelligent characterization of paleocave filling types in deeply buried carbonate reservoirs

Jiangyun Zhang, Fei Tian, Wenxiu Zhang, Wenhao Zheng, Wang Zhang, Zhongxing Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... to obtain spread spectrum and denoised seismic data, enhancing the domain frequency of the origional seismic dataset. Since different filling modes can...

2022

Differentiation of Modern Sand Bodies by Linear Discriminant Analysis

R. J. Moiola, A. B. Spencer, D. Weiser

GCAGS Transactions

.... 514-529. Friedman, G. M., 1967, Dynamic processes and statistical parameters compared for size frequency distribution of beach and river sands: Jour...

1974

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