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The AAPG/Datapages Combined Publications Database
Showing 604 Results. Searched 200,357 documents.
Transformation of Resistivity to Pseudovelocity Logs
Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs
AAPG Bulletin
... to anomalous drilling mud resistivities. Acheson, C. H., 1963, Time-depth and velocity-depth relations in western Canada: Geophysics, v. 28, p. 894-909...
1975
Deep Structure of Black Sea Basin: Structure
Yu. P. Neprochnov, A. F. Neprochnova, Ye. G. Mirlin
AAPG Special Volumes
... in velocity with depth, Vfw, can be used to study the general regularities in the distribution of crustal seismic waves beneath the Black Sea basin...
1974
Growth Fault-Bend Folding at Southeast Lost Hills, San Joaquin Valley, California
Donald A. Medwedeff
AAPG Bulletin
... each material ( .e., physical) point in the fold to be at its maximum depth of burial. Contours of equal density and seismic velocity are relatively flat...
1989
Some Principles and Techniques Used in Reconstructing the Hydraulic Parameters of a Paleo-Flow Regime
Alan V. Jopling
Journal of Sedimentary Research (SEPM)
... the application of the principles of sediment transport mechanics. In environmental reconstruction the size of the bed material and the velocity and depth...
1966
Structure and Development of the Southeast Georgia Embayment and Northern Blake Plateau: Preliminary Analysis: Rifted Margins
William P. Dillon , Charles K. Paull , Richard T. Buffler , Jean-Pierre Fail
AAPG Special Volumes
...:1 on the basis of water velocity. The depth section (lower profile) has a vertical exaggeration of about 2:1. Horizons identified as ß (?) have...
1979
Seismic Reflection Measurements of Northwest Australian Margin and Adjacent Deeps
J. J. Veevers , D. A. Falvey , L. V. Hawkins , W. J. Ludwig
AAPG Bulletin
..., Physiography of the Exmouth and Scott plateaus and adjacent northeast Wharton basin (in prep.). Faust, L. Y., 1951, Seismic velocity as a function of depth...
1974
Middle and Upper Jurassic Depositional Environments at Outer Shelf and Slope of Baltimore Canyon Trough
L. A. Gamboa , M. Truchan , P. L. Stoffa
AAPG Bulletin
... designed to obtain detailed velocity information at depth (LASE Study Group, 1984, personal communication). Here, we primarily use data from the 0-4 km...
1985
Imaging below Seafloor Canyons and other Rugose Features
Dominic Fell, Kiran Dyal, Tony Hallam, Sebastian Nixon
Australian Petroleum Production & Exploration Association (APPEA) Journal
... of velocity related structural distortions. Keywords: depth imaging, depth migration, earth model building, seafloor topography, tomography. Accepted...
2017
Definition, Identification, and Measurement of Normal and Abnormal Subsurface Pressures
Donald J. Timko, Lloyd C. Fons, William K. Grittman, Forest B. Rees
Houston Geological Society
... drilling operations where little is known of geopressures. The technique objective is determine the changes of interval velocity with depth. Under-compacted...
1971
Petroleum Geologist and Exploration Geophysicist: Co-Ordination and Seismic Velocity
John D. Hale
CSPG Bulletin
... various depth levels that are represented by an appreciable contrasting change in the velocity of the elastic waves between two layers of rock...
1956
Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
... on the geology of the water bottom and variation of sound velocity with depth and distance. For a soft sea bottom, the critical angle is typically 60-70...
2010
CMP domain near-surface velocity model building based on deep learning
Yihao Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... and CMP domain are quite similar, which both represent the velocity and depth of the refracted layers. However, as we can see in Figure 1b, the 1D...
2022
Challenges to Processing, Interpretation and Depth Conversion Posed by Dynamic Statics Over the Ujung-Pangkah Field
Donald Easley, Ferry Yustiana
Indonesian Petroleum Association
...) As can be seen from the data in (Figure-3) the first later up to around 15-22m in depth has a very low apparent velocity. This velocity of around...
2009
Some Recent Advances in Exploration Geophysical Techniques and Data Processing
Edward F. Zagst, C. L. Robinson
GCAGS Transactions
... in velocity with depth. This differential in velocities is a necessity if the the multiple reflections are to be attenuated by the CDP technique. Multiple...
1965
Geophysical Investigation for Groundwater Exploration at UKM's Kuala Pilah Matriculation Centre, Negeri Sembilan
Abdul Rahim Samsudin, Abdul Ghani Rafek, Umar Hamzah
Geological Society of Malaysia (GSM)
... and used to calculate the velocity and depth to each individual layer interface. 8eismic refraction software was used for the seismic data interpretation...
1996
Seismic Shear Waves for Discriminating Lithology from Saturation Changes
T. L. Dobecki
Houston Geological Society Bulletin
.... The refraction method depends upon an increase in velocity with depth and is most dependable when this increase is significant; refraction would appear...
1989
Seafloor elastic parameters estimation using a regression neural network
Moacyr de Souza Bezerra, James Simmons, James Gaiser
International Meeting for Applied Geoscience and Energy (IMAGE)
... for monotonic increases of velocity with depth, in A. W. Musgrave, ed., Seismic refraction prospecting: SEG, 290–294. Glorot, X., and Y. Bengio, 2010, Delving...
2022
The impact of estimated temporal and spatial variability of water layer velocity on the correction of OBS data
Peter Scholtz, Truong Nguyen, Arash Jafar Gandomi
International Meeting for Applied Geoscience and Energy (IMAGE)
... depth-dependent ones. The velocity profile estimation method described by Bekara et al. (2021) applies a seconddegree polynomial approximation to model...
2023
Correlation of seismic velocity and density of metasandstone from Kati Formation, Seri Iskandar, Perak, Malaysia
Norsyafiqah Salimun, Abdul Ghani Rafek, Khairul Arifin Mohd. Noh
Geological Society of Malaysia (GSM)
... influence on the seismic velocity (Kahraman, 2007). Beside those factors, Nafe & Draket (1957) proposed velocity-depth relationship which comparing...
2018
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... in the gradient in heterogeneous media, and is able to deliver velocity updates beyond the penetration depth of diving waves. We use synthetic examples...
2016
Seismic imaging in Tarim Basin: Overcoming complex near-surface conditions
Xianhuai Zhu, Ruirui Zhao, Sam Gray, Wensheng Duan, Duoming Zheng, Ganglin Lei, Gengxin Peng, Rujie Zhang, Kun Xu, Grace Yan, Junru Jiao
International Meeting for Applied Geoscience and Energy (IMAGE)
... has significantly improved the robustness of estimating near-surface velocity-depth models, resulting in enhanced resolution of deep reservoir images...
2024
Characteristics of Velocity-Porosity Relationships in the Baturaja Limestone Reservoir: A Case Study in the South Sumatra Basin
Muhamad Noor Ali
Indonesian Petroleum Association
... for ITS-02 well The trend of increasing acoustic impedance and velocity with depth is due primarily to the fact that deeper samples appear to have lower...
2002
Time-lapse seismic joint inversion based on Zoeppritz equation in depth domain
Wenjin Li, Jingye Li, Lei Han, Zhen Liao
International Meeting for Applied Geoscience and Energy (IMAGE)
... with velocity (depth) in the depth domain leads to seismic records exhibiting non-stationary. Time-frequency analysis techniques for time-window wavelet...
2024
Compensating for Seismic Absorption for Orthogonal Shooting Field Data: A Case Study on NW Tunu Area, Indonesia
Doddy Iqbal Biramandita, Vishal Kumar, Wayne Zanussi, Jacques Bonnafe, Natalia Anggriani, Cepi M. Adam, Didiek Bhudy Prabowo
Indonesian Petroleum Association
... low velocity dim zone at depth slice at 750m in the middle of survey. This input was used for Qtomography that computes the absorption model (1/Q...
2016
Geophysical investigation of mine waste in the King River Delta, Macquarie Harbour, Tasmania
Matthew J. Cracknell, Sibele C. Nascimento, Wei Xuen Heng, Anita Parbhakar-Fox, Thomas A. Schaap
Petroleum Exploration Society of Australia (PESA)
... sediments from >12 m depth. Unfortunately, the significant attenuation of seismic energy in the near surface and a decrease in seismic velocity with depth...
2019