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The AAPG/Datapages Combined Publications Database
Showing 17,690 Results. Searched 200,293 documents.
How to Make Velocity Corrections
John W. Daly
AAPG Bulletin
... will be equal to the square of the reciprocal average velocity between the surface and the reflector (Fig. 8). Reading errors, difficulties in identifying...
1944
Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra
Iswani Waryono, Wahyu Triyoso
Indonesian Petroleum Association
... perfectly flat reflections. Deviation of the reflection events from horizontal lines are caused by velocity errors being applied to the gathers...
2012
SEISMIC EXPLORATION IN BLAINE AND PHILLIPS COUNTIES, MONTANA, AND ADJACENT PARTS OF CANADA
S. W. FRUEHLING
Montana Geological Society
.... The constant velocity lines shown superimposed on the curve show errors resulting from the use of a 6000 or 6600 feet per second velocity...
1953
Abstract: Prediction of Mechanical Compaction in Mudstones and Its Implication for Basin Modeling, by Nazmul Haque Mondol, Knut Bjørlykke, Jens Jahren, Øyvind Marcussen, and Chris Peltonen; #90066 (2007)
Search and Discovery.com
2007
ABSTRACT: Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, by Eggenberger, Kurt; Christie, Phil; Muyzert, Everhard; Vassallo, Massimiliano; Özbek, Ali ; #90135 (2011)
Search and Discovery.com
2011
Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).
Yong Hua, Don C. Lawton
Search and Discovery.com
... inversion based upon the inverted GLI model was executed to obtain a detailed near-surface velocity model for the longwavelength statics calculation...
2015
Full waveform inversion of simultaneous long-offset data
Nizar Chemingui, Alejandro A. Valenciano, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... images before and after model updating, respectively, Figures 7C and 7D illustrate the refinement process of the velocity model by FWI. The errors...
2019
Abstract: The Application of Extreme Attributes of PS Converted Wave; #90171 (2013)
Xiucheng. Wei, Xiang-Yang Li, Tiansheng Chen, and Lihua Jia
Search and Discovery.com
...-wave velocity, we propose converted wave reflection coefficient extreme attributes for AVO analysis and derive relations between the extreme position...
2013
Some Applications and Problems of the Seismic Refraction Technique in Civil Engineering Projects in Malaysia
B. K. Lim, S. J. Jones
Geological Society of Malaysia (GSM)
... o je c t s # (475—5 5 0 ) — 20 apparant velocity range In m Fig. 6 . 105 40 m Errors in interpretation due to dilTerential weathering. Where...
1982
Combined Diving Wave Refraction Tomography and Reflection Tomography for PSDM Velocity Model Building (Bekapai Field, Indonesia)
Andi Kusuma, Florent Bertini, Jacques Bonnafe, Artem Sazykin, Swee Leng Ng
Indonesian Petroleum Association
... velocity errors for both intervals were shifted towards zero percent. © IPA, 2012 - 35th Annual Convention Proceedings, 2011 Figure 12 - Shallow image...
2011
Turning high resolution FWI model into pseudo-reflectivity: A case study using sparse OBN
Bing Bai, Yao Yu, Ruoyu Gu, Shenghong Tai, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Schlumberger) Summary Full-waveform inversion (FWI) has proven to be a valuable tool for deriving accurate and detailed velocity models in various geological...
2022
Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic
Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim
Unconventional Resources Technology Conference (URTEC)
...Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic Scott Taylor, Jeremy King...
2016
Managing uncertainty to deliver complex development wells
Peter van Ruth, Manish Agarwal, Scott Gagen
Petroleum Exploration Society of Australia (PESA)
... is based on tomographic principles in which depth errors are converted to time errors along zerooffset rays to calculate the error in the velocity model...
2019
Deep learning based microearthquake location prediction at Newberry EGS using physics-informed synthetic dataset
Zi Xian Leong, Tieyuan Zhu
International Meeting for Applied Geoscience and Energy (IMAGE)
... [-66, 68] m. In comparison with the original 3D velocity model of dimensions ~ 9×9×5 km, the prediction errors are very small. At inference, PMLP...
2023
Unlocking the potential of WAZ data for subsalt imaging using FWI: A case study in the Perdido area
Vivek Vandrasi, Zhihua Su, Shouting Huang, Yogesh Agnihotri, Sabaresan Mothi
International Meeting for Applied Geoscience and Energy (IMAGE)
... for areas with complex overburden where we most need to resolve velocity errors. Recent advances allow TLFWI to simultaneously generate a velocity...
2022
Deposition of Sand by Suspension Currents: Experimental and Theoretical Studies
J. K. Ghosh, B. S. Mazumder, M. R. Saha, Supriya Sengupta
Journal of Sedimentary Research (SEPM)
... in the process of formation of a bed when the flow velocity is decreased. The size distribution deposited closely reflects the one present in suspension...
1986
Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)
Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart
Search and Discovery.com
...Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013) Lejia Han, Joe Wong, John C. Bancroft...
2013
Abstract: Improving the Statics Solution through De-migration: A Canadian Foothills A-PSDM Case History; #90172 (2014)
Jiwu Lin, Sylvestre Charles, Josef Heim
Search and Discovery.com
... process. The error was only discovered in the middle of the depth imaging phase as the tomography velocity model building iterations were no longer...
2014
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)
... dynamic weights in the velocity sensitivity kernel derived from impedance and velocity parameterization of the classical objective function. The new kernel...
2016
Velocity model building assisted by potential field methods: A case study from the Red Sea
Wilson Ibanez, Federico Ceci, Giuseppe Bancala, Andrea Sirtori, Luciana De Luca, Miquel Marin, Vivian Robertson, Briseida Palacios, David Korte
International Meeting for Applied Geoscience and Energy (IMAGE)
...Velocity model building assisted by potential field methods: A case study from the Red Sea Wilson Ibanez, Federico Ceci, Giuseppe Bancala, Andrea...
2024
Geological Considerations during Microseismic Monitoring, Processing, and Interpretation of Hydraulic Fracture Treatment
J. Le Calvez, S. Hanson-Hedgecock, P. Primiero, T. Al-Wadhahi, O. Harrasi
Unconventional Resources Technology Conference (URTEC)
..., and errors in velocity models can impact event detection. Errors in the sonic logs used to construct the velocity model, improperly blocked...
2016
Abstract: The Approximate use of 1D Internal Multiple Prediction in a Multidimensional World: Errors and Recommendations; #90224 (2015)
Pan Pan and Kris Innanen
Search and Discovery.com
... algorithm. Systematic study of prediction errors In this part, we will systematically study the prediction errors. First of all, we build a velocity...
2015
Sonic velocity, submarine canyons, and burial diagenesis in Oligocene-Holocene cool-water carbonates, Gippsland Basin, southeast Australia
Malcolm W. Wallace, Guy R. Holdgate, Jim Daniels, Stephen J. Gallagher, Andrew Smith
AAPG Bulletin
...Sonic velocity, submarine canyons, and burial diagenesis in Oligocene-Holocene cool-water carbonates, Gippsland Basin, southeast Australia Malcolm W...
2002
EXTENDED ABSTRACT: From Isotropic to Tilted Transverse Isotropic Pre-Stack Depth Migration
Nicolas Chazalnoel
GCAGS Transactions
... residue move-out correction during the post-migration stage. While this assumption is generally valid for flat layered sediment and velocity profile...
2011
2D Pre-Stack Depth Migration : Application to Inverted Grabens
C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti
Indonesian Petroleum Association
... is obtained by an analysis of focusing spots which indicate errors in migration depth. In this paper a review of S-G migration and velocity estimation...
1993