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The AAPG/Datapages Combined Publications Database
Showing 73,077 Results. Searched 200,293 documents.
Data selection for velocity model estimation using a circular shot OBN survey
Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale
International Meeting for Applied Geoscience and Energy (IMAGE)
...Data selection for velocity model estimation using a circular shot OBN survey Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe...
2023
Son of Crossplot Fights Back
Piers Cooke-Yarborough
Southeast Asia Petroleum Exploration Society (SEAPEX)
...-evaluation package using linear programming techniques to evaluate porosity and lithology in hydrocarbon-bearing complex lithologies”: O.S.E.A....
1986
Seismic Brittleness Index Volume Estimation from Well Logs in Unconventional Reservoirs; #80381 (2014)
Roderick Perez
Search and Discovery.com
...-related well logs building a non-linear relationship between these variables. Using prestack simultaneous inversion, I derived geomechanical seismic...
2014
RhoVe T Method Empirical Velocity-Density-Temperature-Effective Stress Transform
Matt Czerniak
GCAGS Transactions
... Figure 1: v-z), to density-“virtual” depth (rho-z) on-the-fly using the a-term active curve and end-members (v-rho) as a series of velocity-density...
2019
Depth Imaging Seismic Data to Help Delineate Gas Reservoirs in Southwest Wyoming
Alvin K. Benson
Wyoming Geological Association
... data on recorded surface data (Figure 5 overlaid on Figure 3). Using the velocity model (Figure 4) to feed velocities into the depth imaging scheme...
1989
Abstract: Processing and Imaging of Seismic Data Acquired with Buried Vertical DAS Arrays; #90319 (2018)
Andrey Bakulin, Ilya Silvestrov, Kevin E. Erickson, Pavel Golikov, Robert Smith, Mustafa Al-Ali
Search and Discovery.com
... corrections near the boreholes. They are interpolated between adjacent holes and produce a nearsurface depth velocity model and a long-wavelength static model...
2018
Abstract: Case Studies: Full-waveform Inversion and FWI Imaging for Land Data; #91204 (2023)
Cristina Reta-Tang, James Sheng, Faqi Liu, Alfredo Cantu, Alejandro Vargas
Search and Discovery.com
... model. The near surface model is inserted into a smooth velocity model reaching maximum depth; b) Long-wavelength tomographic updates to build a global...
2023
The Geophysical Aspects of Abnormal Fluid Pressures
Edward B. Reynolds, John E. May, Alf Klaveness
Houston Geological Society
... routinely using Common Depth Point (CDP) data to generate plots of root mean squared velocity versus reflection time. These same plots can also be used...
1971
A Critique of the Magnolia Field (Columbia County) Case History
E. E. Rosaire , James M. Forgotson
GCAGS Transactions
... of these was the linear vertical extrapolation and the other the uniform lateral extrapolation of the velocity depth function determined in the control...
1953
Full-elastic AVA extraction using acoustic FWI
Michael Warner, John Armitage, Adrian Umpleby, Nikhil Shah, Henry Debens, Fabio Mancini
International Meeting for Applied Geoscience and Energy (IMAGE)
... water layer and a moderately soft seabed. Below the seabed, p-wave velocity increases linearly with depth representing a simplified compaction trend...
2022
Critical Depth Uncertainty Analysis for Accurate Well Planning at Tangguh
Nurfiana Rachmawati
Indonesian Petroleum Association
... The success of any Pre-Stack Depth Migration project depends on the velocity model used for migration. After reprocessing, the general trend of the CBM depth...
2017
Full phase-velocity spectrum inversion of multimode Rayleigh waves
Yanlong Niu, Yunyue Elita Li, Siau Chen Chian
International Meeting for Applied Geoscience and Energy (IMAGE)
...-channel records to obtain the dispersion spectrum. We propose a new way of using Wasserstein distance (WD) as objective function to evaluate the difference...
2022
Abstract: Carbonate Fracture Case History from Russia and Implications for HTD Plays in North America; #90172 (2014)
Inga Khromova, Brian Link
Search and Discovery.com
... and depth-velocity model as conventional depth migration. In addition, a depth map of a reflection surface below the bottom of the reservoir under study...
2014
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
Seismic inversion with dictionary learning using unsupervised machine learning
Debajeet Barman, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
... by Equation (3). For VAE, the loss function is defined by Equation (4). The loss is calculated using the following equation LossCNN = kd LossVAE = kd Gmk2...
2022
Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)
Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly
Geological Society of Malaysia (GSM)
... attribute volume in time was converted to depth, using exactly the same average velocity field for conversion of the PSDM seismic imaged volume...
2008
Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada
J.H. Isaac, D.C. Lawton, C.W. Langenberg
CSPG Bulletin
... (MVA) using common image gathers. The correct velocity is that which images a particular reflector at the same depth for every source-receiver offset...
2008
Detecting igneous rocks in the presalt with elastic FWI
Gabriel Pacheco, Ana Araújo, Diego Costa, Karine Pereira, Luis Cypriano
International Meeting for Applied Geoscience and Energy (IMAGE)
... is the presence of igneous rocks. We analyze the ability of full-waveform inversion (FWI) to identify and detect this class of rock using an OBN data set from...
2024
Chapter 10: Rock Physics Relationships between Elastic and Reservoir Properties in the Haynesville Shale
Kyle T. Spikes, Meijuan Jiang
AAPG Special Volumes
...), where the plot is colored by depth, indicates trends observed in the well data plot in Figure 1. (c) Crossplot of P-wave velocity as a function...
2013
Modeling Hydro-Isostasy: Isostatic Flexure Along the Global Coastlines Due to Sea-Level Rise and Fall
Eric W. Hutton and James P.M. Syvitski
Search and Discovery.com
... of a linear slope, due to sea level rise and fall, is derived. This analytic solution allows a global database of deflection estimates for continental shelves...
Unknown
Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data
Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto
Indonesian Petroleum Association
... variations in speed. PSDM function is to produce seismic image in the depth domain before stacking. Figure 8 shows the image from PSDM using input...
2019
A Parsimonious Approach to Gravity Inversion for Salt Shape Delineation; #42417 (2019)
Simone Re, Luca Masnaghetti, Elena Medina
Search and Discovery.com
.../10.1190/1.2431634 Cordell, L., 1973, Gravity Analysis Using an Exponential Density-Depth Function-San Jacinto Graben, California: Geophysics, v. 38, p. 684690...
2019
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
.... Depth-velocity model updates are then performed to optimize the velocity model using an iterative flow that involves the following steps: (i...
2005
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)
... panel shows the ray density. Figure 7. Depth slices of estimated velocity models using super-long-offset first arrivals at depths 900m and 2000m...
2024