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The AAPG/Datapages Combined Publications Database

Showing 18,833 Results. Searched 200,599 documents.

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High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP

Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... pulse. DAS sensor response is known to differ from the conventional geophone in frequency and amplitude (Bakku, 2015; Sayed et al., 2020, 2021...

2023

Geophysical and Geochemical Data to Map Ground-Water Contamination-Utah County, Utah

Alvin K. Benson, Kelly L. Payne, Melissa A. Stubben

Utah Geological Association

... Geophysical methods can be helpful in mapping areas of contaminated soil and ground wtaer. Electrical resistivity and very low frequency...

1995

Lithology characterisation of the roof and floor of the Moranbah measures coal seam using post-stack and pre-stack seismic inversion

Margarita Pavlova

Petroleum Exploration Society of Australia (PESA)

... 1998-2015 year range. The processing flow aimed to match amplitude, phase and frequency spectrum across the merged volume. The dominant frequency...

2019

Applied Geostatistics Method for Clastic Gas Reservoir Facies Modeling of Middle Arang Formation of TS Gas Field, West Natuna Basin

Tigor Siagian, Ali Taha Al-Temimi, Abdulaziz Al-Mousawi, Sonny Winardhi

Indonesian Petroleum Association

... to have a good mapping of base structure. Filtering the existing 3D seismic volume to low and high frequency content, next step is applied absorption (Q...

2017

Interbed Multiple Suppression in Carbonate Sequences

Gabriel Gil

Unconventional Resources Technology Conference (URTEC)

... frequency content, predominantly in near-offset traces. As a result, high-cut frequency filtering is sometimes employed to suppress their impact. However...

2025

Abstract: AVO Crossplotting I: Processing and Calibration Considerations; #90171 (2013)

Heath Pelletier

Search and Discovery.com

... the frequency content of the primaries has been altered too dramatically. In these cases it is necessary to crossplot the AVO attributes, before and after...

2013

Abstract: 5D Interpolation and Regular Upsampling: Ill-suited or Fit-for-purpose?; #90187 (2014)

Mike J. Perz and Peter W. Cary

Search and Discovery.com

.... On the other hand, there are two factors driving the algorithm towards success: first, simple wavenumber filtering can overcome this assumption...

2014

Abstracts: Evidence of Shallow Gas in the Queen Charlotte Basin from Waveform Tomography of Seismic Reflection Data; #90173 (2015)

Eric M. Takam Takougang and Andrew J. Calvert

Search and Discovery.com

... shallow gas in the Queen Charlotte Basin. Waveform tomography We used the 2-D visco-acoustic waveform tomography approach in the frequency domain...

2015

VSP Survey in the Thonex Geothermal Well … New Characterization of Potential Carbonatic Geothermal Reservoirs, #80646 (2018).

Luca Guglielmetti, Andrea Moscariello, Flavio Poletto,, Piero Corubolo,, A. Scheifer,, B. Farina, Fabio Meneghini, Francois Martin, Carole Nawratil de Bono,, Michel Meyer, Chrystel Dezayes, Adnand Bitri

Search and Discovery.com

... with the deviated well path; Signal frequency analysis, and Band Pass filtering 8- 12110-120 Hz (Ormsby filter). This preprocessing was followed by: • FB picking...

2018

Biodeposition by the Ribbed Mussel Geukensia Demissa in a Salt Marsh, Sapelo Island, Georgia

Jennifer M. Smith, Robert W. Frey

Journal of Sedimentary Research (SEPM)

... and filtering characteristics of Modiolus demissus in a Connecticut estuary [unpubl. Ph.D. thesis]: Univ. Connecticut. DAHLBERG, M. D., AND SMITH, F. G., 1970...

1985

Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt Provinces

Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang

GCAGS Transactions

... of marine data with frequency-selection encoding: Geophysics, v. 78, p. S233–S242. Dong, S., J. Cai, M. Guo, S. Suh, Z. Zhang, B. Wang, and Z. Li, 2012...

2016

Application of a Modern Electrical Borehole Imager and a New Image Interpretation Technique to Evaluate the Porosity and Permeability in Carbonate Reservoirs: A Case History from the Permian Basin, United States

Vivek D. Chitale, Clive Johnson, David Entzminger, Lyn Canter

AAPG Special Volumes

..., using various filtering techniques, the total porosity visible to an image log in the zone of invasion is estimated by calibrating the image-log...

2010

Development and Application of a New Geothermal Database for the Illinois Basin, #80277 (2013)

Tiffany A. Proffitt, Kevin M. Ellett, Charles W. Zuppann, Shawn C. Naylor, Melony E. Barrett, Bryan G. Huff, Chris P. Korose, Alison B. Lecouris, T. Chase Noakes

Search and Discovery.com

... geophysical logs, we conducted a number of quality assurance steps and filtering analyses. Primary tests involved graphical screening for outliers...

2013

Surface Seismic Monitoring of Hydraulic Fracturing Activity in Pennsylvania and West Virginia

Abhash Kumar, Erich Zorn, Richard Hammack, William Harbert

Unconventional Resources Technology Conference (URTEC)

... in this study show a low-frequency, low-amplitude precursor followed by a relatively high-frequency, high-amplitude primary S-wave signal and are similar...

2016

Applications of Shallow High-Resolution Seismic Reflection to Environmental Problems

Richard D. Miller, William E. Doll, Carlene Merey, William E. Black

Environmental Geosciences (DEG)

... of subsurface acoustic velocity contrasts, density contrasts, or both. The second relates to the ability of the near surface to propagate high-frequency seismic...

1994

OPSEIS™ Seismic Recording System

H. A. Tims, D. R. Cahill

Indonesian Petroleum Association

...). A number of Remote Telemetry Units (RTU). A Blaster or source detonation unit. A number of Radio-Frequency Repeaters. Central Recording Station...

1983

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... depth points. These data showed a strong noise peak between 12 and 28 hertz. Comparison of the power spectra, in this frequency range, recorded during...

2001

Least-squares non-stationary triangle smoothing

Reem F. Alomar, Sergey Fomel

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The method is based on the local frequency attribute and has been applied successfully for approximating the inverse Hessian operator in least-squares...

2022

Multicomponent seismic data vector reconstruction via quaternionic matrix factorization

Yonghai Fu, Jianjun Gao, Wenbo Sun, Yandong Wang, Fan Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... data via biquaternions in the frequency domain and presented a biquaternionic POCS algorithm to solve the 3C-3D reconstruction problem. Based on F-XY...

2023

Pematang Lantih Vibroseis 3D Seismic Survey: An Innovative Technique Applied in Sumatra

Adde Avrino, Jacques Bonnafé-Clauss, Susanto S. Wibowo, Jeres R. Cherdasa, Rimbawan Prathidina, Nobuhito Shimada, Stevanus P. Silaban

Indonesian Petroleum Association

...:           1 (One) Unit Vibro Truck Sweep length: 16 sec Frequency range: 6-80 Hz, linear Bin Size: 20x20 Fold Coverage: 62 Taper: 300ms Force: 90% VP...

2018

Kapteyn's Transformation of Grain Size Distribution

Jiri Brezina

Journal of Sedimentary Research (SEPM)

... frequency curves. First paper: P. N. Noordhoff, Groningen; E. Steiger Co., New York. KAPTEYN, J. C., 1916, Skew frequency curves in biology and statistics...

1963

Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)

Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen

Search and Discovery.com

.... Horizontal and vertical components of real (E, G) and synthetic (F, H) data for an offset ~1530 m. Frequency filtering of the real data is the same...

2015

Comparison of potential fields inversion techniques for basement relief recovery: A case study from the Taubaté Basin, Brazil

Fernanda C. M. Hermes, Guilherme Lenz, Leonardo Miquelutti, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

... that allows a visual analysis of the data. It offers a wide variety of tools for processing and interpreting gravimetric data, such as filtering, inverting...

2023

Massive focal mechanism solutions from deep learning in west Texas

Yangkang Chen, Omar M. Saad, Alexandros Savvaidis, Fangxue Zhang, Yunfeng Chen, Dino Huang, Huijian Li, Farzaneh Aziz Zanjani

International Meeting for Applied Geoscience and Energy (IMAGE)

... and simulation of high-frequency waveforms. In this work, we focus on the first-motion-based methods. Picking the P-wave first-motion polarities can...

2024

Seismic Facies Analysis Using Generative Topographic Mapping; #41717 (2015)

Satinder Chopra, Kurt Marfurt

Search and Discovery.com

...-entropy, GLCM-homogeneity, peak frequency, peak magnitude, coherence and impedance attributes we derive GTM1 and GTM2 outputs. These attributes provided...

2015

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