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The AAPG/Datapages Combined Publications Database
Showing 18,835 Results. Searched 200,626 documents.
SEISMIC DETECTION OF THE ROSE RUN SANDSTONE IN SOUTH-CENTRAL OHIO
James R. Morris, Belden & Blake Corporation, Titusville, Pennsylvania, in conjunction with Quaker State Corporation and KEP Exploration, Inc.
Ohio Geological Society
... to provide good signal return damages our frequency spectrum by narrowing the bandwidth and reducing the dominant frequency...
1995
Emphasizing Vibrations
Paul Wood
GEO ExPro Magazine
... of extending the frequency content or bandwidth of seismic signals, especially at the low-frequency end, in order to achieve better vertical resolution...
2011
Mini Seismic Processing System for Training and Research Purposes
Suprajitno Munadi, Bambang Triharjanto
Indonesian Petroleum Association
... record containing direct wave, ground roll and reflected waves. In its f-k spectrum (on the right hand side) there are three groups of arrivals which...
1993
The Application of a Non-Inundation Approach of Paleoflood Hydrology for the Assessment of Extreme Flood Hazards on the Ogden River, Utah
D.A. Ostenaa, D.R. Levish
Utah Geological Association
... periods of large floods. For the South Fork Ogden River, inclusion of paleoflood bounds in frequency analyses indicates that the return period...
1995
Some Results of Dynamic Analysis of Reflected Waves in the Area of the Kuleshov Oil Field
A. I. Belyayeva, O. I. Rogoza, S. A. Semenova
Petroleum Geology: A Digest of Russian Literature
.... The investigation included a comparative study of the amplitude and frequency characteristics of waves reflected from horizons that occur above...
1966
Application of time-adaptive FWI on onshore data in Bohai Bay Basin
Wan Xuejuan, Luo Wenshan, Wang Yongming, Gong Ting, Li Daoshan, Chen Yuansheng
International Meeting for Applied Geoscience and Energy (IMAGE)
... application of TA-FWI on onshore data example in Bohai Bay Basin. Results show that, by considering low-frequency signal denoising, surface consistency...
2024
Comparative Efficiencies of Size Analysis by Hydrometer and Pipette Methods
R. W. Sternberg, Joe S. Creager
Journal of Sedimentary Research (SEPM)
... by percent in Wentworth sizes (using Phi notation). Figure 1 presents the cumulative frequency curves obtained from each of the sub-samples. This figure...
1961
Calibration of Continuous Wavelet Transform (CWT) Fracture Closure Detection Using Laboratory Hydraulic Fracturing Experiments
Mohamed A. Gabry, Zhi Ye, Amr Ramadan, Ahmad Ghassemi, Mohamed Y. Soliman
Unconventional Resources Technology Conference (URTEC)
... frequency levels by convolving it with a wavelet (a short wavy signal) to identify closure events based on the stabilization of average signal energy...
2025
Enhanced Resolution Seismic and New Subsurface Insights: Miocene Section, St. Mary Parish, Louisiana
V. Egorov, C. I. Puryear, R. Tharimela, J. Jurasin
GCAGS Transactions
... data provide a limited window into the frequency spectrum of the earth’s subsurface reflectivity. Generally, the frequencies recovered after earth...
2021
Statistics Overview: Part 6. Geological Methods
T. C. Coburn, Brian R. Shaw
AAPG Special Volumes
... with the greatest frequency, and the median is the value that has as many values above it as below it (Figure 1). As an example of comparing some...
1992
Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)
Emmanuel L. Bongajum and Bernd Milkereit
Search and Discovery.com
...; where the scattering power is concentrated in the forward direction. The frequency distortions due to scattering can be useful to estimate scale...
2013
Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)
Emmanuel L. Bongajum and Bernd Milkereit
Search and Discovery.com
...; where the scattering power is concentrated in the forward direction. The frequency distortions due to scattering can be useful to estimate scale...
2013
Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013)
Guangpin Li, Johnathan Linfoot, and Bruce Hobbs
Search and Discovery.com
...Abstract: 3D Focusing Inversion of Multi-transient EM Data in the Frequency Domain; #90171 (2013) Guangpin Li, Johnathan Linfoot, and Bruce Hobbs 3D...
2013
Abstract: Support Vector Machine (SVM)-based Geostatistical Inversion: An Integrated Solution to Honor Well-log Data and Seismic Attributes; #90171 (2013)
Yexin Liu
Search and Discovery.com
... and frequency-domain attributes extracted from seismic gathers. It is challenging for us to integrate and honor all these dataset for the reservoir...
2013
Seismic Attribute Mapping in Carbonate Depositional Environment, Some Lessons from Case Studies; #41159 (2013)
F. Hong and E. Shipilova
Search and Discovery.com
... on each seismic trace in order to highlight stratigraphic limits). Low frequency components in spectral decomposition can provide some coherent noise out...
2013
Assessing the Influence of Untrackable Horizons on Impedance Inversion; #42163 (2017)
Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt
Search and Discovery.com
... its frequency spectrum toward higher frequencies, and thus can define some reflections better, making them amenable for tracking. A better alternative...
2017
Spectral Decomposition in a Heavy-oil and Bitumen Sand Reservoir
Carmen C. Dumitrescu, Larry Lines
AAPG Special Volumes
... spectrum for each frequency in the interval of 8 to 150 Hz.Figure 16. Spectral decomposition (SD) performed using the S-transform algorithm. Seismic...
2013
Kutei Basin: Feasibility Study of a Broadband Acquisition
Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele
Indonesian Petroleum Association
... can be expected in a low pass earth system, and this was our case. However we estimated that the low end of the frequency spectrum could...
2013
Spatial Analysis of Basement and Cover Linears by Optical Diffraction - Methods, Results, and Interpretation
Howard J. Pincus, Thomas W. Doe
Utah Geological Association
... the contribution of linears independent of relative locations in the inputs. Degree of preferred orientation and concentration of spatial frequency can be evaluated...
1974
Update 2010: Airborne Transient Pulse Surveys for Hydrocarbon Exploration„Major Recent Improvements; #40686 (2011)
Leonard A. LeSchack, John R. Jackson, James K. Dirstein, William B. Ghazar, Natalya Ionkina
Search and Discovery.com
... computer software divides a frequency spectrum of 2002200 Hz into 11 discrete frequency bands and records the segmented data in a spreadsheet format...
2011
Measures for Describing the Size Distribution of Sediments
Douglas L. Inman
Journal of Sedimentary Research (SEPM)
... size-frequency curve of a sediment. They include the mean (or median) diameter, standard deviation, kurtosis, and two measures of skewness, the second...
1952
Field and Modelling Studies of Cambrian Carbonate Cycles, Virginia Appalachians: DISCUSSION
Lawrence A. Hardie, Paul A. Dunn, Robert K. Goldhammer
Journal of Sedimentary Research (SEPM)
... on Carbonate Platform and Basin Development: SEPM Special Publication 44, p. 323-338. GOLDHAMMER, R.K., DUNN, P.A., AND HARDIE, L.A., 1987, High frequency...
1991
Practical considerations for computing the kernels of reflection-based full-waveform inversion
Houzhu (James) Zhang, Hong Liang, Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... on the conditioning of time-shifts from dynamic warping, preparation of Born velocity perturbation, approximation of Hessian and filtering of frequency components...
2022
Extraction and Interpretation of the Complex Seismic Trace
R. E. Sheriff, M. T. Taner, F. Koehler, D. Frye
Indonesian Petroleum Association
... in reflection strength, phase, frequency, polarity, etc., must also be communicated to the interpreter in a way that he can comprehend and apply them...
1977
S-transform based processing of noisy surface wave record for recovering high-resolution spectrum
Sayan Mukherjee, Mrinal Bhaumik, Tarun Naskar
International Meeting for Applied Geoscience and Energy (IMAGE)
... of three steps. First, MST is performed over the raw data to obtain the time-frequency representation. After that, the resulting spectrum is analyzed...
2022