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The AAPG/Datapages Combined Publications Database
Showing 16,508 Results. Searched 198,798 documents.
Creating Singularity Order Attribute of Seismic Signals Using Continuous Wavelet Transform (CWT) for Stratigraphic Interpretation Tools
A.M. Ustad, M.S. Jaya, F.J. Herrman
Indonesian Petroleum Association
... as dis (appearance) of local maxima in wavelet transform coefficients. The output of this attribute produces a map of singularity structure. It can...
2007
The Petrology of Some Pennsylvanian Black "Shales"
Charles E. Payton, Leo A. Thomas
Journal of Sedimentary Research (SEPM)
.... The siltstones have an average mineral composition within the range of sub-graywacke to graywacke. Sorting coefficients range from 1.9 to 4.3...
1959
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02 x 2 VRMS (1) Here T0...
Unknown
Long-Offset Approximations to NMO Function for a Layered Subsurface
E. Blias
Search and Discovery.com
.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02 x 2 VRMS (1) Here T0...
Unknown
Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand
Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher
AAPG Special Volumes
..., New Zealand: Journal of Structural Geology, v. 19, no. 10, p. 13231342.Ostrander, W. J., 1984, Plane-wave reflection coefficients for gas sands...
2009
Natural Gas in the Wilcox Trend of South Texas
Fred L. Oliver
GCAGS Transactions
... control in most localities. Many prospects, however, require better delineation, and detailed reflection seismograph surveys yield excellent exploratory...
1958
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
..., and the values of the coefficients of reflection qn and qn+1 on these boundaries. Consequently, the graphs of An+1/An = ϕ(x) quantitatively reflect...
1966
Abstract: Joint PP and PS AVO Inversion Based on Zeopprtiz Equations; #90171 (2013)
Tiansheng Chen and Xiucheng Wei
Search and Discovery.com
... equations to inverts for the ratio of density, P-wave velocity and S-wave velocity using the PP and PS plane wave reflection coefficients. At small incident...
2013
Abstract: Joint PP and PS AVO Inversion Based on Zeopprtiz Equations; #90171 (2013)
Tiansheng Chen and Xiucheng Wei
Search and Discovery.com
... equations to inverts for the ratio of density, P-wave velocity and S-wave velocity using the PP and PS plane wave reflection coefficients. At small incident...
2013
Towards a Balance of Pore Size Distribution of Non-Conventional Hydrocarbon Reservoirs: a Combination of Bulk Techniques Applied to Comparable Sub-Samples Localized by 3D X-ray µ-Tomography
Natalia Matskova, Dimitri Pret, Stéphane Gaboreau, Philippe Cosenza, R. Brechon, I. Gener, Claire Fialips, G. Dubes, François Gelin
Unconventional Resources Technology Conference (URTEC)
... presenting (i) similar non-clay grain amounts, (ii) similar X-ray linear attenuation coefficients, and (iii) no cracks or macro-heterogeneities...
2017
AVAZ inversion for brittleness indicator and fracture parameters of gas-bearing reservoirs with tilted transverse isotropy
Yuanyuan Tan, Guangzhi Zhang, Zhengqian Ma, Ying Lin
International Meeting for Applied Geoscience and Energy (IMAGE)
... the amplitude variation with the angle and azimuth (AVAZ) inversion. First, we derive a linearized PP-wave reflection coefficient of the TTI medium...
2023
Abstract: Seismic Source Wavelet Estimation and Sparse-spike Deconvolution; #90174 (2014)
Zhengsheng Yao and Mike Galbraith
Search and Discovery.com
...) and a source wavelet, i.e. (1) where r refers to a time series of reflect coefficients and h refers to a source wavelet. Because the convolution...
2014
One-Dimensional Prestack Seismic Inversion with Very Fast Simulated Annealing using Edge-Preserving-Smoothing Filter; #41576 (2015)
Somanath Misra, Mauricio Sacchi
Search and Discovery.com
...-offset data are converted to the angle-domain by shooting rays from the source to receiver. The PP reflection coefficients are calculated from...
2015
General Geology and Oil Possibilities of the Amazonas Basin in Brazil
Luis G. Morales
Tulsa Geological Society
... of the problem, preliminary computations of absorption and reflection coefficients (terms of amplitude) indicated an energy return to surface or less...
1963
SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing
Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver
AAPG Special Volumes
...SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing Frederick A. Cook, Larry D. Brown...
1983
An Easily Constructed, Very Inexpensive, Solar Cell Transmissometer (SCT): RESEARCH METHODS PAPERS
Stephen C. Knowles, John T. Wells
Journal of Sedimentary Research (SEPM)
... predicted by SCT and OBS during field trial. End_Page 213------------------------ light transmission and a particle size dependent transmissometer...
1998
X-Radiography of Rocks with I-125 Source: GEOLOGICAL NOTES
Malcolm P. Weiss
AAPG Bulletin
... uniform, as it seems to be in most limestones, differential transmission of the radiation depends on differences in porosity (Figs. 1, 4) or delicate...
1966
Visco-Acoustic Full-Waveform Inversion: A Case Study to Resolve High-Resolution Shallow Channel Absorption, Offshore Indonesia
Jun Wang, Yonghe Guo, Putri Supriandini, Kelik Moersidin, Rahmad Hidayat
Indonesian Petroleum Association
... rather than velocity estimation, meaning systematic velocity errors might already exist. Various mechanisms such as reflection, transmission...
2022
Use of Record Character in Interpreting Results and Its Effect on Depth Calculation in Refraction Work
T. L. Allen
AAPG Bulletin
... transmission, the horizon which has the small "forerunner" wave might be interpreted as a lens and not a continuous horizon. By making use of the character...
1932
Velocity of P- and S-Waves in Arab-D and WCSB Carbonates
Search and Discovery.com
... of porosity, pore type, saturation and pressure in the acoustic properties of reservoir rock is essential in order to adequately interpret seismic reflection...
2013
Know Before You Go!
Lars Zühlsdorff, Trond Haugland
GEO ExPro Magazine
.... This means, rock models can indicate how reflection coefficients are changing in response to production. It is recommended that rock models are calibrated...
2021
Reservoir Characterisation Through Integrated AVO, AI and EI Inversion
Andy Furniss
Indonesian Petroleum Association
..., Proceedings of the Indonesian Petroleum Association, 27, Vol. 1, pp. 599-612. Ostrander, W.J., 1984. Plane-wave reflection coefficients for gas sands...
2002
Gas Hydrates in Ocean Bottom Sediments
M. K. MacLeod
AAPG Bulletin
... of the gas hydrate layer is seen on seismic profiles as an anomalous reflection nearly parallel to the ocean bottom, cross-cutting geologic bedding...
1982
Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
A New Approach to Crosswell Reflection Imaging
G. Li, R. R. Stewart
CSPG Special Publications
...A New Approach to Crosswell Reflection Imaging G. Li, R. R. Stewart 1994 261 263...
1994