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The AAPG/Datapages Combined Publications Database
Showing 1,098 Results. Searched 200,756 documents.
Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada
Gilles Bellefleur
Search and Discovery.com
... data at depth z, P ( z , Z ) the Fourier transform at Zo and * is geometrical spreading. The traveltime increment is given by z 'W ( z , Z ) d] ³ c(Z...
Unknown
ABSTRACT: Converted Shear-Wave Anisotropy Attributes for Fractured-Reservoir Management; #90013 (2003)
JAMES E. GAISER, RICHARD R. VAN DOK
Search and Discovery.com
... to quantify fracture orientation, traveltime differences between the P-wave and PS-wave provide Vp/Vs measures for lithological discrimination and can help...
2003
Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada
Gilles Bellefleur
Search and Discovery.com
... data at depth z, P ( z , Z ) the Fourier transform at Zo and * is geometrical spreading. The traveltime increment is given by z 'W ( z , Z ) d] ³ c(Z...
Unknown
Seismic Attenuation Analysis for Reservoir Description
Search and Discovery.com
... is the NMO shift at an offset for an event starting from two8Q way traveltime t 0 at zero-offset. Δt is a function of t 0 , RMS velocity and offset...
2013
Abstract: Velocity Model Building with Weighted Linearized Inversion A VSP Data Case Study; #90187 (2014)
Mingyu Zhang, Richard Kuzmiski, and Zhengsheng Yao
Search and Discovery.com
... for receiver gather at 274 m depth Basic inverse theory Given observed data, with a first arrival traveltime, our problem is to estimate an earth...
2014
Understanding the Deformation of the Naga Thrust Triangle Zone, NE India, Using Structural Modeling of 2D Seismic Data; #50822 (2013)
B. Michael, C. M. Burberry, P. Jaiswal, S. Rath, S. N. Singh, and G. Barali
Search and Discovery.com
... with a combination of traveltime inversion and prestack depth migration (PSDM). An improved image was acquired from a combination of multiscale waveform...
2013
erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).
Jubran Akram, Abdullatif A. Al-Shuhail
Search and Discovery.com
... is the normalized traveltime and τ* is the normalized total traveltime across the array. The wavelet response of the receiver array is where u is the Ricker...
2016
Microseismic Without Dots Probabilistic Interpretation and Integration of Microseismic Surveys
Ulrich Zimmer
Unconventional Resources Technology Conference (URTEC)
... the measured traveltime information (TTm), is proportional to the probability that this location x could have been an event location in the first place (“Prior...
2017
Broad Top Thrust Sheet: An Extensive Blind Thrust in the Central Appalachians (1)
Thomas H. Wilson and Robert C. Shumaker
AAPG Bulletin
... reflections. Based on the two-way interval traveltime of 0.75 s and average velocity through the unit of 22,300 ft/s (6800 m/s) derived from a velocity...
1992
Submarine Debris Flows and Continental Slope Evolution in Front of Quaternary Ice Sheets, Baffin Bay, Canadian Arctic
R. N. Hiscott, A. E. Aksu
AAPG Bulletin
...-Cretaceous unconformity. The unconformity dips in an irregular fashion toward the northeast in the center of the figure. 0.1 s two-way traveltime (TWT...
1994
Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand
Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher
AAPG Special Volumes
... (accounting for the speed of sound in water), increasing to 2000 m/s (6562 ft/s) at 2 s two-way traveltime (TWT) below the sea floor.3) Five seismic...
2009
Geological History of the Flemish Pass Basin, Offshore Newfoundland
D. G. Foster, A. G. Robinson
AAPG Bulletin
... it is typically deep and commonly below the base of seismic sections (below 6 s two-way traveltime).In places, the base of MS1 is located at what appears...
1993
Estimation of Formation Pressures from Log-Derived Shale Properties(*)
C. E. Hottman , R. K. Johnson
GCAGS Transactions
... of the response of an acoustic log in normally pressured shales indicates a relation between the common logarithm of shale traveltime t(sb) and depth...
1965
A Comparison between Geostatistical Inversion and Conventional Geostatistical-simulation Practices for Reservoir Delineation
C. Torres-Verdn, A. Grijalba-Cuenca, H. W. J. Debeye
AAPG Special Volumes
... of geostatistical inversion is the need to convert well-log data from depth to seismic traveltime. In addition, geostatistical inversion may be rendered...
2006
Shallow Structure, Stratigraphy, and Carbonate Sedimentary Processes of West Florida Upper Continental Slope
Larry J. Doyle , Charles W. Holmes
AAPG Bulletin
... revealed a Pleistocene sequence of up to 160-msec two-way traveltime, overlying a second, probably Miocene, strong reflector. South of 27°20^primeN...
1985
Aspects of Reservoir Geology and Production Behavior of Sirikit Oil Field, Thailand: an Integrated Study Using Well and 3-D Seismic Data
S. Flint , D. J. Stewart , T. Hyde , E. C. A. Gevers , O. R. F. Dubrule , E. D. Van Riessen
AAPG Bulletin
... that blue = low traveltime (thin sequence) and green and red = greater traveltime (thicker sequence). Positions of wells shown. Map covers approximate area...
1988
Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)
Faranak Mahmoudian and Gary F. Margrave
Search and Discovery.com
... planes, and its elastic properties have already been determined using traveltime analysis. This experimental model represents a HTI layer. We follow...
2014
Stress, Fracture, and Fluid-flow Analysis Using Acoustic and Electrical Image Logs in Hot Fractured Granites of the Coso Geothermal Field, California, U.S.A.
Nicholas C. Davatzes, Stephen H. Hickman
AAPG Special Volumes
... from borehole televiewer traveltime data, in 1988 annual meeting expanded abstracts with biographies: Anaheim, California, Society of Exploration...
2010
A deep-learning workflow for weak reflection extraction in pitch-catch measurements in cased-hole
Qiang Wang, Hua Wang, Shaopeng Shi
International Meeting for Applied Geoscience and Energy (IMAGE)
...ut the active learning strategy. Fig. 9 The A0 and TIE boundary picking by solving Eikonal equation. (a) A0 pseudo-velocity map; (b) Calculated A0 travelti...
2022
New Data on the Subsurface Structure of the Emba Salt Domes
P. I. Krayev
Petroleum Geology: A Digest of Russian Literature
... in the traveltime of waves from the deep, so-called “subsalt” strata, the aforementioned authors came to the conclusion that all these indirect indications...
1959
Wave scattering by the formation velocity perturbation surrounding a fluid-filled borehole
Zhou-Tuo Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
... fluctuations in traveltime, amplitude, waveforms and spectra. Obviously, wave scattering due to different scales and compositions in the rock formation...
2022
Amplitude enhancement of far-offset refractions via machine learning
Lurun Su, Han Wang, Jie Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... analysis and time-depth calculation. To image the near surface and crustal velocity structures, seismic refraction traveltime inversion and tomography...
2022
Direct S-wave seismic data interpretation for channel sand reservoir at Sanhu area, West China
Rui Zhang, Zhiwen Deng, Yan Wang, Xiaoyu Xi, Xiusong Wang, Jie Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... orientation could vary with depth. If the depth-variant polarization and traveltime information are known, the split wavefields can be backpropagated...
2023
Enhancing Seismic Interpretation Using Crosswell Seismic: Case Study From Indonesia
Tri Handayani, Zeppy Irwanzah, M. Taslim, Sanjeev Dogra, Ajay Nalonnil, Bruce Marion, Pedro Carrillo Reyes
Indonesian Petroleum Association
... be used as a velocity model for reflection imaging. The velocity model is exploited in the general flow, where traveltime inversion is used to produce...
2011
Anisotropic elastic full-waveform inversion for crosswell seismic data for Wyoming CarbonSAFE project
Olga Podgornova, Shujaat Ali, Ting Lei, Peng Li, Matthew Johnson, Lu Lee, Zunsheng Jiao, J. Fred McLaughlin, Erik Borchardt, Lin Liang, Pierre Bettinelli, Joel Le Calvez
International Meeting for Applied Geoscience and Energy (IMAGE)
... are avoided, making this survey geometry ideal for high-resolution time-lapse monitoring. Up to now, conventional traveltime tomography and migration...
2023