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The AAPG/Datapages Combined Publications Database
Showing 4,616 Results. Searched 200,619 documents.
Donkey Creek North Minnelusa 3-D: Challenging Conventional Wisdom [Abstract]
John B. Frederick, Karen T. Dean, Steven G. Fryberger, Tim C. Wilcox
Oklahoma City Geological Society
... Sandstones (low velocity, low density) encased by tight carbonates (high velocity, high density) the large acoustic impedance contrasts yield high...
1997
Principles of AVO Crossplotting [Abstract]
John P. Castagna, Herbert W. Swan
Oklahoma City Geological Society
... impedance gas-sands for which reflection coefficients decrease with increasing offset; they may occur, for example, when the shear-wave velocity in the gas...
1997
Elastic FWI for large impedance contrasts
Zedong Wu, Zhiyuan Wei, Zhigang Zhang, Jiawei Mei, Rongxin Huang, Ping Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
...Elastic FWI for large impedance contrasts Zedong Wu, Zhiyuan Wei, Zhigang Zhang, Jiawei Mei, Rongxin Huang, Ping Wang Elastic FWI for large impedance...
2022
Summary of Geophysical Exploration in the Delaware Basin
S. T. Miller
West Texas Geological Society
... impedance. The acoustic impedance of the material is the product of its density times its velocity. Any time the acoustic impedance of two adjacent...
1968
Abstract: Interaction of Salt Tectonics, Slumping and Channeling: Mid-Pliocene Reservoir System, Pompano Field, Gulf of Mexico
C. L. Blankenship, D. A. Stauber, D. S. Epps, C. G. Guderjahn, and J. D. Oldroyd
Houston Geological Society Bulletin
.... A. Stauber, D. S. Epps, C. G. Guderjahn, and J. D. Oldroyd 1996 26 26 Newly reprocessed 3-D seismic data, converted to acoustic impedance, shows...
1996
Adapting Conventional E&P Workflows to Scale Up Hydrogen and Helium Exploration
Marc-Antoine Dupont, Emmanuelle Baudia, Nicolas Daynac
GEO ExPro Magazine
... amplitude, b) Sweetness, c) Relative Acoustic Impedance maps highlighting a potential area of interest on the hanging wall of the fault (eastern...
2022
Abstract: Distinguishing Water Saturation Changes from Porosity or Clay Content Changes Using Multicomponent Seismic Data
Fuping Zhu, Richard L. Gibson, Jr., Joel S. Watkins, and Sung H. Yuh
Houston Geological Society Bulletin
... on their acoustic impedance contrasts with their overlying shales. The DRps/DRpp ratio can distinguish water saturation changes from porosity or clay...
2001
Abstract: Garden Banks 625 - A Deepwater Gulf of Mexico Post-Drill Review
Mark Sunwall and Robert Alexander
Houston Geological Society Bulletin
..., instantaneous frequency, seafloor piston core geochemistry, and 3D acoustic impedance inversion calibrated to several wells within the basin...
2001
Abstract: Measurement of compressional--wave velocity gradients in seabed materials -- examples from the Beaufort Sea and the Sea of Japan
A. McKay
Atlantic Geology
... for the investigation of seabed sediments relies on the detection of discontinuities in the acoustic impedance of sediment layers. A continuous...
1993
Abstract: Integrated Analysis of the Upper Jurassic Bossier Deltaic Complex, East Texas
K. M. Stevens, J. B. Wagner, T. D. Sheffield, L. L. Brooks, P. Zippi, M. A. Dablain, B. Brown, and R. Offenberger
Houston Geological Society Bulletin
... dominated by large acoustic impedance contrasts associated with porous sandstones, low porosity siltstones and over-pressured shales. Depositional...
2002
Abstract: Correlation of swath bathymetric images with metrics derived from seismic and sidescan data
B. Nichols, R. Courtney, G. Fader, R. Parrott
Atlantic Geology
... of these measures the acoustic impedance contrast across the water-seabed interface, and is proportional to the "hardness" of the bottom. R2 measures...
1993
Deriving Subsurface Insight from Seismic
Gregory Partyka
Indonesian Petroleum Association
..., 2005). The problem is often compounded by weak impedance contrasts and/or poor signal-to-noise ratios. This can lead to reflection energy...
2015
Fracture Likelihood Analysis Using Seismic and Triple Combo Log Data in the Stacked-Carbonate Play of Madison County
Courtney Beck, Anna Khadeeva, Bhaskar Sarmah, Andrew Whitsett, Trey Kimbell
Unconventional Resources Technology Conference (URTEC)
...-impedance, S-impedance, and density. These properties can sometimes be indicative of lithology, porosity, and/or fluid saturations. It is expected...
2017
Abstract: Seismic Reflection Applied to Sedimentology
J. Delaplanche
Geological Society of Malaysia (GSM)
...-sections. The seismic traces were inverted into seismo-impedance traces to investigate lateral variations in facies and to localize hydrocarbon...
1981
The Suizhong 36-1 Oil Field, Bohai Gulf, Offshore China: Reservoir Delineation by Geophysical Methods: Chapter 29
John B. Gustavson, Xin Shi Gang
AAPG Special Volumes
.... The approximate inversion or pseudoinversion method was applied to the seismic data to obtain the subsurface acoustic impedance distribution that was the basis...
1992
Abstract: Diagenesis and Depositional Environment of the F6 Reef Complex, Central Luconia Province, Offshore Sarawak
Md. Nazri Ramli
Geological Society of Malaysia (GSM)
... a Zayered appearance on seismic impedance sections. This detaiZed analysis of both the ciepositionaZ pattern and the sequence of diagenesis aUows the F6...
1982
"Colour Imaging of Velocity Variations Due to Fracture Porosity and Fluid Content [Abstract]"
Landwer, W.R.
CSPG Bulletin
...) Consolidated reservoir formations are defined as those having consistently higher acoustic impedance (density and velocity product) than similarly...
1991
Advances in High Resolution Seismic Reflectivity Inversion
Dr. John Castagna
Houston Geological Society Bulletin
... on the order of 1/16th of a wavelength in realistic cases. Figure 1. Conventional seismic data. Note 10 millisecond time lines and the acoustic impedance...
2012
Abstract: Forward 4-D seismic modelling of the Hibernia Reservoir
Richard Wright
Atlantic Geology
... produced approximately 60 million barrels of oil. Seismic reflection data rely on contrasts in subsurface acoustic impedance (density x velocity...
1999
Advances in Borehole Imaging in Unconventional Reservoirs
Marian Morys, Sergei Knizhnik, Andrew R. Duncan, Brady E. Tingey
Unconventional Resources Technology Conference (URTEC)
... comprising high resolution caliper and acoustic impedance images, both from two transducers operating in tandem. With acquisition time less than 1ms per...
2018
Abstract: Pore Pressure Prediction Using Borehole Calibrated Seismic Attributes
Alan V. Strudley
Petroleum Exploration Society of Australia (PESA)
..., it is desirable to utilise other seismic attributes, such as impedance inversion and attenuation, to refine the pore pressure predictions. The additional...
2001
Abstract: Inverse Problem Theory: An Application to Stratigraphic Inversion
Emmanuelle Becker
Geological Society of Malaysia (GSM)
... inversion techniques utilising iterative computations to shape an acoustic impedance section, fitting both seismic and well log data. Jul-Aug 1991...
1991
Abstract: A Quantitative Study of the Seismic Time-Amplitude Reflection Characteristics in an Oil Field
Ng Tong San, Idrus Mohd. Shuhud, Leong Lap Sau
Geological Society of Malaysia (GSM)
..., wireline logs indicate velocity to be a poor lithologic descriptor. The acoustic impedance at sand- shale interfaces could be accounted for by changes...
1991
EVOLUTION OF QUANTITATIVE INTERPRETATION (QI) STRATEGY IN EARLY STAGES OF FRONTIER EXPLORATION -AN INDONESIAN CASE STUDY
David M. Jessup, Dave Goulding, Kirill Epov, Muhammad Juliansyah, and Peter Harris
Indonesian Petroleum Association
... Elastic Impedance (EEI) inversion proved to be very helpful in prospect delineation through separation of reservoir and fluid effects and formed...
2025
Abstract: A Quantitative Study of the Seismic Time-Amplitude Reflection Characteristics in an Oil Field (Paper 4)
Ng Tong San, Idrus Mohd. Shuhud, Leong Lap Sau
Geological Society of Malaysia (GSM)
... for interpretation. In this area, wire line logs indicate velocity to be a poor lithologic descriptor. The acoustic impedance at sand-shale interfaces...
1993