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The AAPG/Datapages Combined Publications Database
Showing 20,627 Results. Searched 200,673 documents.
Physical properties of Cenozoic mudstones from the northern North Sea: Impact of clay mineralogy on compaction trends
Oyvind Marcussen, Brit I. Thyberg, Christer Peltonen, Jens Jahren, Knut Bjorlykke, Jan Inge Faleide
AAPG Bulletin
... interval.Figure 7. (a) Velocity vs. depth for wells 24/6-1 and 26/4-1. (b) Bulk smectite content from x-ray diffraction analysis of the same wells (data from...
2009
A New Type of Reservoir Rock in Volcaniclastic Sequences (1)
LEV VERNIK
AAPG Bulletin
... of the effective stress s[v] is estimated. The calculation of (s[v]) on the assumption of its linear growth with depth according to the equation sigma[v] = S[v...
1990
Abstract: Inverse scattering Internal Multiple Prediction on Physical Modeling Data; #90174 (2014)
M. Hernandez, K. Innanen, and J. Wong
Search and Discovery.com
..., where kz is the conjugate of pseudo-depth (z=cot/2), hence the output can be straightforwardly transformed to the time domain. The b1(z) entries...
2014
Seismic Imaging of the SW South China Sea Deep Crustal Structure Shows Evidence for a Ductile Lower Crust during Rifting; #30404 (2015)
M. Delescluse, T. Pichot, N. Chamot-Rooke, M. Pubellier, Y. Qiu, G. Sun, J. Wang, J.-L. Auxiètre
Search and Discovery.com
... Linear velocity gradient Moho depth (defined by Bouguer gravity inversion ) (Pichot et al., 2014, MPG) RESULTS Modeling: joint reflection...
2015
Yesterday, Today, and Tomorrow in Seismic Exploration
Emil J. Mateker, Jr.
GCAGS Transactions
... the simple equation: geometric configuration plus lithologic distribution equals geologic section. Cook, E. E., and M. T. Taner, 1969, Velocity...
1970
Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study
Andreas Waluyo
Indonesian Petroleum Association
... migration workflow that includes designature to zero phase, random and linear noise attenuation, multiple elimination, Kirchhoff prestack depth...
2014
Quantification of Tertiary Exhumation in the United Kingdom Southern North Sea Using Sonic Velocity Data
Richard R. Hillis
AAPG Bulletin
....'s (1956) time average relationship to obtain the relationship between velocity (v) and burial depth (d): [Equation] where a, b, and c...
1995
2D Seismic Refraction Tomography Survey on Metasediment at a Proposed Development Site in Dengkil, Selangor
Umar Hamzah, Abd Rahim Samsudin
Geological Society of Malaysia (GSM)
... survey, some of the 20 velocity model cross sections show P-wave velocity values range from 3500 to 4000mls at a depth of more than 15m. This high...
2006
In Situ Evaluation of Potential Source Rocks by Wireline Logs: Chapter 13: GEOCHEMICAL METHODS AND EXPLORATION
Susan L. Herron
AAPG Special Volumes
... the log-linear relationship between vitrinite reflectance and depth and consequently to pick a representative vitrinite reflectance value for a given zone...
1991
Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP
Mohammad Risyad
Indonesian Petroleum Association
.... RESULT AND DISCUSSION Logarithmic ratio of amplitude at two different depth levels from equation (2) is a linear function and can be rewritten...
2018
STRUCTURAL INTERPRETATION OF THE SOUTHERN HALF OF THE SAWTOOTH SALIENT OF THE MONTANA DISTURBED BELT
Stephen P. Gardner, Jonathan M. Achuff
Montana Geological Society
... the locations of individual interface segments identified from linear and curved features in the seismic sections. Ideally, the ray path...
1989
Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)
FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN
AAPG Bulletin
... to various compositions. Using logarithms of conductivities, equation 7 becomes linear and least squares algorithms may be used. Table 2 lists the thermal...
1990
Tomographic waveform inversion (TWI) applied to real seismic data
Jlio Oliva Frigrio, Biondo Biondi
International Meeting for Applied Geoscience and Energy (IMAGE)
... = 0 . Moveout analysis of the CIGs shows that the migration velocity is too slow for the deeper strong events below 2.7 km depth. Conversely...
2022
Interpretation Methods in the Exploration of Oligocene-Miocene Carbonate Reservoirs, Offshore Northwest Madura, Indonesia
David C. Carter, Dwi Mandhiri, Robert K. Park, Imron Asjhari, Syaiful Basyuni, Sergey Birdus, John P. Bradfield, Ary Iriawan, Meutia Nasfiah, M.A. Agung Nugroho
Indonesian Petroleum Association
... not contain the interpreted buildup morphology. (iv) Travel time variations of ray paths within a CMP, caused by both vertical and lateral velocity...
2005
Formation Evaluation Symposium, November 14-15, 1957
P. A. Ross
CSPG Bulletin
... the reliability of equation (1), it may be concluded that plots of the logarithms of neutron deflection versus porosity on a linear scale are straight lines over...
1958
ABSTRACT: Geostatistical Shale Models for a Deltaic Reservoir Analog: From 3D GPR Data to 3D Flow Modeling; #90013 (2003)
HONGMEI LI, CHRISTOPHER D. WHITE
Search and Discovery.com
... by calibrating the GPR attributes (amplitude) to well data (gamma ray logs). Shale occurrence must be deduced from well log data and related to GPR...
2003
Analysis of Geophysical Well Logs from the Mariano Lake-Lake Valley Drilling Project, San Juan Basin, Northwestern New Mexico
James H. Scott
AAPG Special Volumes
... computed from the sonic velocity log by use of the time-average formula (Wyllie, Gregory, and Gardner, 1958). This formula is: [EQUATION] where Vm...
1986
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
... isotropic terms. The third terms are the high-order terms which correct the travel time error due to ray bending caused by varying vertical velocity...
2014
Statistical Methods For Log Analysis of Reservoir Properties: Chapter 1
John H. Doveton
AAPG Special Volumes
... times on Figure 9. The regression equation is: [EQUATION] and has a coefficient of determination of 0.76, meaning that the linear prediction...
1994
Fit-for-Purpose Log Conditioning as Applied on the F-A Gas Field in the Bredasdorp Basin, Offshore South Africa; #42339 (2019)
Abdullah Jawoodien
Search and Discovery.com
... Explorer, Geophysical Corner, February 2002, p. 26-27, 29. Website accessed December 2018. Faust, L.Y., 1951, Seismic Velocity as a Function of Depth...
2018
Deep Structure of Northern Mississippi Embayment
A. Ginzburg , W. D. Mooney , A. W. Walter , W. J. Lutter , J. H. Healy
AAPG Bulletin
...-velocity 7.3-km/sec basal layer. The base of the crust ranges from a 39 km (24 mi) depth at the southern end of the profile to a 46 km (29 mi) depth...
1983
Velocity model building from 3D surface seismic data at the Utah FORGE EGS site
Yun-Ha Jung, Nori Nakata, Sea-Eun Park, Ju-Won Oh
International Meeting for Applied Geoscience and Energy (IMAGE)
... the inverted velocity model with available well-log data, we observe distinct three depth zones, unconsolidated alluvium, consolidated alluvium...
2024
Acoustic Properties of Sediment on the Southern Tonga Platform as Determined from Seismic Sonobuoy Studies
Jonathan R. Childs
Circum Pacific Council Publications
...) is the vertical rootmean-square acoustic velocity to-the boun dary. This equation is linear in x and t . If we measure the travel times along a reflection...
1985
Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs
Jinsong Chen, Sizhuang Deng, Min Yang, Andrey Shabelansky, Cory Hoelting, Huafeng Liu, Maisha Amaru
International Meeting for Applied Geoscience and Energy (IMAGE)
...Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs Jinsong Chen, Sizhuang Deng...
2024
Automated velocity modeling with domain transformations
Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... time to depth domain by integrating the predicted velocity model. This pipeline is capable of predicting a velocity model suitable for input to FWI...
2024