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The AAPG/Datapages Combined Publications Database
Showing 17,675 Results. Searched 195,689 documents.
Interpreted Linear Features from Landsat Thematic Mapper Images, Southern Ute Indian Reservation, Colorado
Daniel H. Knepper Jr.
Utah Geological Association
... “noise,” and naturally occurring alluvial and colluvial cover. Nevertheless, mapped linear features provide a relative measure of where fractures occur...
1996
Reconstruction of the Subsurface Reflected Wavefield on a Dense Grid from Multisensor Streamer Data
M. Vassallo, K. Eggenberger, D.J. van Manen, P. Watterson, A. Raskopin, A. Özbek
Indonesian Petroleum Association
... the pressure, P, the crossline, Py, and vertical, Pz, components of the pressure gradient. Data are shown after on-board noise attenuation: no further low-cut...
2013
Optimal transport for elastic source inversion
Tyler Masthay, Björn Engquist
International Meeting for Applied Geoscience and Energy (IMAGE)
... (t)d (x ✓ ⇣ t ⌘2 ◆ Rs (t) := 1 e s s), t2 2s 2 . Given that W2 computation has linear cost in 1D and is expensive in higher dimensions, we use...
2023
Dual-Detector Lithology Measurements with a New Spectral Density Log
W. E. Schultz, A. Nunley, J. G. Kampfer, H. D. Smith Jr., Verdun E. Rahal Jr.
Indonesian Petroleum Association
... the tungsten pad housing. Nal (Tl) crystals with low noise photomultiplier tubes are used for both detectors. Specially designed and coated beryllium...
1985
Facies Mosaics Across the Persian Gulf and Around Antigua-Stochastic and Deterministic Products of Shallow-Water Sediment Accumulation
Bruce H. Wilkinson, Carl N. Drummond
Journal of Sedimentary Research (SEPM)
... mosaic of elements whose mean linear widths constitute an exponential frequency distribution. These are the size frequency distributions one would...
2004
Exploration of the North Seribu Area, Northwest Java Sea
Roberto Fainstein
Indonesian Petroleum Association
... on reprocessing. Attenuation of multiples and reverberations was of foremost importance because the seismic sections were contaminated with these coherent noise...
1987
Water Imbibition and Oil Recovery in Shale: Dynamics and Mechanisms Using Integrated Cm-to-Nm-Scale Imaging
Sheng Peng, Jacob LaManna, Priyanka Periwal, Pavel Shevchenko
Unconventional Resources Technology Conference (URTEC)
... by the interaction. As a result, the attenuation coefficient is greater for hydrogen (1H)-containing materials such as kerogen in shale, water, or oil (Chiang et...
2022
Imrpoved Reserve Estimates Using Spatial Averaging
Mohan Kelkar
Unconventional Resources Technology Conference (URTEC)
... proved to be difficult. Seismic interpretations failed to predict the performance accurately due to seismic attenuation effects, a shadow effect...
2015
ABSTRACT: GEOLOGIC MINERALS EXTRACTION, IDENTIFICATION AND MAPPING USING IMAGE SPECTRAL LIBRARY (ISL) FROM HYPERSPECTRAL DATA ITSELF
Keming Yang, Dazhi Guo
The Society for Organic Petrology (TSOP)
... (MNF) transform segregates noise and reduces the spectral dimensionality of the data by finding linear combinations of bands that explain the inherent...
2006
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)
... et al. (2015) to detect smaller seismic events obscured by ambient seismic noise. The value of the correlation coefficient can be used to determine...
2016
Amplitude Recovery of Digitally Recorded Data
Roy O. Lindseth
Pacific Section of AAPG
... the unit impulse response of the seismic recording system. The effect of the convolution process is completely linear. Each reflection coefficient...
1972
Joint 4D full-waveform inversion using enhanced template-matching objective function
Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
...-repeatable 4D noise. In conventional time processing, rigorous signal processing steps are carried out to mitigate these issues. Since it has become...
2023
Minnelusa Formation Exploration, Powder River Basin, Wyoming: An Integrated Approach
Laura A. Welch, Jesse C. Taylor
Rocky Mountain Association of Geologists
... to noise ratio. Both of these factors place limitations on bed thickness resolution. Opinions differ on the benefits of a dynamite versus Vibroseis source...
1985
Seismic Quantitative Analysis for Physical-Based Deep Learning: The Teapot Dome and Niobrara Shale Examples
Nicolas Martin, Maria Donati
Unconventional Resources Technology Conference (URTEC)
... (2009) Geophysics 74(2) p. WA3-WA14 https://doi.org/ 10.1190/1.3054144 Zhao X., Lu P., Lu P., Zhan Y., Cheng J., Li X. (2019) Swell-noise attenuation...
2020
Eagle Ford - Introducing the Big Bad Wolf
Scott Malo, Jimmy McNamara, Nick Volkmer, Ehsan Amirian
Unconventional Resources Technology Conference (URTEC)
...; and (2) identify hidden patterns among the data set. PCA is a linear operation that converts the set of correlated variables into a reduced set...
2019
Implementation of Denoising Diffusion Probability Model for Seismic Interpretation
Fan Jiang, Konstantin Osypov, Julianna Toms
International Meeting for Applied Geoscience and Energy (IMAGE)
... principle. We design a linear scheduler to gradually add Gaussian noise to the interpretation principles at each time t, then considering seismic as prior...
2023
Remote Sensing of Geomorphology and Facies Patterns on a Modern Carbonate Ramp (Arabian Gulf, Dubai, U.A.E.)
Samuel J. Purkis, Bernhard M. Riegl, Serge Andrefouet
Journal of Sedimentary Research (SEPM)
..., Ecology, evolution and 1/f-noise: Trends in Ecology and Evolution, v. 11, p. 33–37. Halley, J.M., and Kunin, W.E., 1999, Extinction risk and the 1/f-noise...
2005
Using Microseismicity to Understand Subsurface Fracture Systems and to Optimize Completions: Eagle Ford Shale, TX
John Detring, Michael Grealy
Unconventional Resources Technology Conference (URTEC)
... a high signal to noise ratio, resulting in high accuracy of event locations and source mechanism inversions. The same low attenuation and high signal...
2014
Assessing mineral composition and permeability of a shale seal
Roman Beloborodov, Marina Pervukhina, Maxim Lebedev, Juerg Hauser
Petroleum Exploration Society of Australia (PESA)
... suppression of noise and multiples, correction for attenuation, pre-stack Kirchhoff time migration and moveout correction. The goal...
2019
Using Microseismicity to Understand Subsurface Fracture Systems and Increase the Effectiveness of Completions: Eagle Ford Shale, Texas; #41186 (2013)
John P. Detring and Sherilyn Williams-Stroud
Search and Discovery.com
... mapping. The microseismicity has a high signal to noise ratio, resulting in high accuracy of event locations and source-mechanism inversions. The same...
2013
Value of elastic full-wavefield inversion in derisking clastic reservoirs in presence of noise
Partha Routh, Soumya Nayak, Jake Dorsett, Kaushik Banerji, Young Ho Cha, Vijay Gottumukkula, Gopal Palacharla, Vikas Gudipati, Ramesh (Neelsh) Neelamani, Seth Conway, Andrea Raphael
International Meeting for Applied Geoscience and Energy (IMAGE)
... of Noise One can speculate if the mis-estimation in the conventional Vp/Vs can be mitigated by improving de-noising or by restricting linear inversion...
2023
An empirical method to correct nuclear magnetic resonance porosity of tight sandstone using low-field nuclear magnetic resonance data
Xinmin Ge, Yiren Fan, Jianyu Liu, Donghui Xing, Hongjun Xu, and Falong Hu
AAPG Bulletin
... echo spacing (TE) as well as the diffusion attenuation caused by the large TE. In addition, the measured NMR signals and their inversion results...
2023
Physics-Constrained Deep Learning for Production Forecast in Tight Reservoirs
Nguyen T. Le, Roman J. Shor, Zhuoheng Chen
Unconventional Resources Technology Conference (URTEC)
... to noise and capable of handling complex non-stationary patterns often encountered in production time series in tight reservoirs due to changes in flow...
2021
High-resolution seismic detection of shallow natural gas beneath Hutchinson, Kansas
Susan E. Nissen, W. Lynn Watney, Jianghai Xia
Environmental Geosciences (DEG)
...) and vertical component geophones. An Industrial Vehicles International (IVI) minivib controlled by a linear upsweep (5 s) from 30 to 300 Hz was deployed...
2004
Auto-Control Model Building Using Machine Learning Regression for Extreme Response Prediction
Darrell Leong, Anand Bahuguni
Australian Petroleum Production & Exploration Association (APPEA) Journal
... sea state. Analysis of each sea state involves numerically intensive non-linear dynamic analysis, leading to massive computational expense across...
2020