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The AAPG/Datapages Combined Publications Database
Showing 33,735 Results. Searched 197,434 documents.
Abstract: Seismic acquisition challenges in Boujdour coastal basin, Morocco; #90137 (2011)
Nawal Essalloumi, Hakima Jemjami, and Mohamed Dakki
Search and Discovery.com
...-surface and the quality of the Signal-noise ratio. It should be noted that 80 up-holes were carried out for static calculations and corrections...
2011
Abstract: Performance of Seismic Arrays in the Presence of Weathering Layer Variations; #90254 (2016)
Jubran Akram, Abdullatif A. Al-Shuhail
Search and Discovery.com
... which are typically used to attenuate horizontally traveling coherent noise and enhance vertically traveling signal. We investigate the effect...
2016
Abstract: Lithostatic-Load Effects in Geologically Constrained Model Building for Foothills Anisotropic Seismic Imaging; #90255 (2017)
Rob W Vestrum, Greg Cameron, Dennis Ellison, Zoë Vestrum
Search and Discovery.com
... settings, like a continental rift in Central Africa or a thrust belt in the Andes, seismic data is often affected by low signal-to-noise ratios...
2017
Assessing spatial uncertainty in reservoir characterization for carbon sequestration planning using public well-log data: A case study
Erik R. Venteris, Kristin M. Carter
Environmental Geosciences (DEG)
... variability, (2) that spatial variability must be at least partially ordered in space (not random), and (3) the distance between the samples (wells) must...
2009
Use of the Dipmeter to Improve Formation Evaluation in Thin-Bedded Sand/Shale Sequences
J. E. Sallee
Southeast Asia Petroleum Exploration Society (SEAPEX)
.... The inaccuracy of conventional log analysis and its effect on reserve calculations did not appear significant until a later date when cumulative production data...
1982
Use of the Dipmeter to Improve Formation Evaluation in Thin-Bedded Sand/Shale Sequences
J. E. Sallee, B. R. Wood
Indonesian Petroleum Association
.... The inaccuracy of conventional log analysis and its effect on reserve calculations did not appear significant until a later date when cumulative...
1981
Formation of Lateral Patterns In Rock Properties By Dolomitization: Evidence From A Miocene Reaction Front (Bonaire, Netherlands Antilles)
David A. Budd, Whitney D. Mathias
Journal of Sedimentary Research (SEPM)
... that dolomite abundance and porosity contain three scales of lateral variability. Much of the signal is random sample-to-sample noise as ∼ 65% of the total...
2015
An adaptive filter-based approach for the Marchenko multiples elimination scheme
Rodrigo S. Santos, Marcelo S. Souza, Daniel E. Revelo, Victor Koehne, Reynam C. Pestana, Diego F. Barrera, Laila D. L. Vergne, Jonathas Maciel
International Meeting for Applied Geoscience and Energy (IMAGE)
... that the source ghost, the imperfect source signature deconvolution, and the 3D effect compensation affect the data amplitude requiring that it must...
2023
Prestack inversion and amplitude variation with offset attributes as hydrocarbon indicators in carbonate rocks: A case study from the Illinois Basin
Jacob T. Murchek, Paul McColgan, Lindell C. Bridges, Ernest C. Hauser, and Doyle R. Watts
AAPG Bulletin
.... A radon filter was applied to remove multiples and random noise from the data, with parameters of low delta T = −5 ms, high delta T = 25 ms, with a S/N...
2023
Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)
Roohollah Askari and Robert J. Ferguson
Search and Discovery.com
...) Equation 12 can be explained by the effect of noise at low frequency components where the signal to noise ratio is small. At those frequencies, initial...
2014
Developing a Wireline-Log Database and a Basis for Determining Reservoir Porosity
Jeffrey A. Kane, James W. Jennings Jr.
AAPG Special Volumes
... random errors, such as measurement noise, while preserving geologically relevant information. This phase of the process does not correct for systematic...
2012
Phase-encoded waveform inversion for multiples
Yike Liu, Bin He, Xiao-Bi Xie, Yingcai Zheng
International Meeting for Applied Geoscience and Energy (IMAGE)
.... By adopting the random phase encoding to multiples of different orders, crosstalk artifacts between mismatched multiples can be largely suppressed...
2022
Auto-Control Model Building Using Machine Learning Regression for Extreme Response Prediction
Darrell Leong, Anand Bahuguni
Australian Petroleum Production & Exploration Association (APPEA) Journal
... conditions into discrete independent sea states of assumed stationarity. Within each sea state, random wave statistics are characterised by spectral...
2020
Predicting gas migration through existing oil and gas wells
James A. Montague, George F. Pinder, and Theresa L. Watson
Environmental Geosciences (DEG)
... factors may contribute to pathway formation. Of the models investigated, random forests provide the best results on this data set, correctly identifying 78...
2018
Grain Size Measurement in Thin Section and in Grain Mount: Reply to Comment BY Sahu: DISCUSSIONS
Richard E. Smith
Journal of Sedimentary Research (SEPM)
... equations (1) and (2) (Smith, 1966, p. 842) arises from the effect of "random thin sectioning," a phrase that is somewhat illusory. The orientation...
1968
Abstract: Black Box Recording of Passive Seismicity: Pitfalls of not Understanding your Acquisition Instrumentation and its Limitations; #90187 (2014)
Ted Urbancic and Andreas Wuestefeld
Search and Discovery.com
... outline frequency and bandwidth limitations, consider different noise and resonance effects on signals, the effects of coupling behaviour, and introduce...
2014
Identification of Fracture Zone in Field A Using Maximum Entropy Method
Aditya T. Pratama, Leonard J.I. Lisapaly
Indonesian Petroleum Association
... Maximum entropy method is a technique which enhances the resolution and signal/noise ratio of any measure on a given system, using certain a-priori...
2005
Challenges to Processing, Interpretation and Depth Conversion Posed by Dynamic Statics Over the Ujung-Pangkah Field
Donald Easley, Ferry Yustiana
Indonesian Petroleum Association
.... The main physical parameter associated with the sediments that cause this profound effect on the seismic data is its velocity. A series of uphole...
2009
Deriving Elastic and Petrophysical Properties From Small Sample Volumes Using Digital Rock Analysis
Vegar Ravlo, Pål-Eric Øren, Cathrine Ringstad
Unconventional Resources Technology Conference (URTEC)
.... Reichweite from the analysis shows R=0, meaning a random mixing of layers in the illite/smectite portion of the clay. The mineralogy results from both...
2022
Petrophysics of the Lance Sandstone Reservoirs in Jonah Field, Sublette County, Wyoming
Suzanne G. Cluff, Robert M. Cluff
AAPG Special Volumes
... data to minimize differences caused by random logging errors and other noise in the data set. This noise results from a variety of causes. Logging...
2004
Machine-Learning-Assisted Segmentation of FIB-SEM Images with Artifacts for Improved of Pore Space Characterization of Tight Reservoir Rocks
Andrey Kazak, Kirill Simonov, Victor Kulikov
Unconventional Resources Technology Conference (URTEC)
... the misclassification rate below 15% within a 30% noise range. Tracey·et·al.·(2019) discusses integrating a random forest classifier with the deep-learning...
2020
An Experimental Method to Study the Impact of Fracturing Fluids on Fracture Conductivity in Heterogeneous Shales
Weiwei Wu, Rodney Russell, Mukul M. Sharma
Unconventional Resources Technology Conference (URTEC)
... the effect of the fluids and not noise caused by sample variation. We applied the half-core approach to 16 preserved shale samples from Barnett, Eagle Ford...
2017
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
... lithologies; Evaluate the effect of faults on rock properties (reflectivity); Acquire an accurate velocity model to calibrate better the current interpretations...
2018
5 Thermal Anomalies
P. E. Gretener
AAPG Special Volumes
... what constitutes an anomaly ?" poses itself here as in all other fields of geology and geophysics. Only what clearly exceeds the background noise can...
1981
Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues
Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp
AAPG Bulletin
... obstruct the reflection events of the buildup. Therefore, predictive deconvolution might be needed to mitigate this noise. Another element that we...
2022