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Showing 39,969 Results. Searched 195,364 documents.
Accurate Depth Conversions Reduce Risk
Larry C. Luton, Corine Prieto
GCAGS Transactions
... is required. Well Tops Well top data is a correlation of seismic time to a measured well depth. These data can give a velocity model additional...
2000
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... in fastidious detail and then discard that precision by spending only a matter of days or a week building the velocity model for depth conversion. Table 1...
1999
Reflection or Refraction?
Aleksandr Nikitin, Nikolay Amelin, Sergei Pokrovskii, Andrey Lekomtsev
GEO ExPro Magazine
... a refracted wavebased velocity model can be a better, more stable and reliable alternative for signal enhancement data processing, migration procedures...
2017
Abstract: 3D Pre-Stack Depth Migration in Permafrost Transition, Point Thomson Field, North Slope, Alaska, by N. C. Lian, J. R. Alldridge, J. R. Krebs, and J. Hefti; #90008 (2002).
Search and Discovery.com
2002
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... of velocity-sensitive depth imaging techniques such as pre-stack depth migration has created a demand for more accuracy in velocity model building...
2000
Reveal The Velocity Anomalies in Complex Overburden and Enhanced The Imaging through Shallow Gas: A Case Study in SisiNubi Mahakam, Indonesia
Annas Astuti, Yohanes Kristomo, Bee Jik Lim, Ginanjar Satria, Natalia Anggriani
Indonesian Petroleum Association
... model complexity, the 3D prestack depth migration project integrates full-waveform inversion in the velocity model building to delineate the velocity...
2019
Seismic Imaging and Interpretive Model Building in the Colombian Andes
Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
.... Depth migration in thrust-belt environments like the Colombian Andes requires an interpretive approach to building a depth-migration velocity model...
2006
Anisotropic depth migration in the Colombian Llanos Foothills as a key to understanding the structure in depth
emamedov
Search and Discovery.com
... capture of the interactive model-building display. The depth-migrated seismic data for the current model were overlaid on a colour map of the velocity...
Unknown
Visco-Acoustic Full-Waveform Inversion: A Case Study to Resolve High-Resolution Shallow Channel Absorption, Offshore Indonesia
Jun Wang, Yonghe Guo, Putri Supriandini, Kelik Moersidin, Rahmad Hidayat
Indonesian Petroleum Association
... used for imaging beneath gas clouds, and can be incorporated into the conventional depth velocity model building flow and used in QPSDM to compensate...
2022
Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)
Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto
Search and Discovery.com
... below shallow velocity abnormal. How to build a high resolution velocity model is the key for pre-stack depth migration to improve the carbonate...
2023
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... Solving the wave equation Complexity of velocity model Computer efficiency Steep dips Model building Kirchhoff Migration Ray tracing Moderate...
2010
Abstract: Depth Conversion Methodology using a Stochastic Velocity Model for the McMurray Formation; #90171 (2013)
Darren Hinks, Tom Cox, Stephanie Schmidt, Dale Vanhooren, and Sergei Filin
Search and Discovery.com
..._bs marker). Conclusions A more accurate velocity model for general depth conversion can be achieved by building a stochastic cellular velocity...
2013
True Amplitude Preserved Multi-Azimuth Pre-Stack Depth Migration for Structural and Reservoir Characterization (Sisi-Nubi Field, Indonesia)
M. Baturin, F. Bertini, J. Bonnafé, A. Riou, S. Birdus, Y. Yin
Indonesian Petroleum Association
... with preserved relative seismic amplitudes. These migration operations were anticipated by a careful multi-iteration update of the velocity model used...
2011
Migration Velocity Analysis by Migration of Velocity Spectra
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
... in another context; since the migration-velocity field often plays a role in depth conversion, errors in the migration-velocity field can lead to errors...
1992
Leveraging Reflection, Refraction, and Multiple Arrivals from Dual-Sensor Streamer Data for High-Fidelity Velocity Model Building and Imaging
G. Rønholt, J.E. Lie, Ø. Korsmo, B. Danielsen, S. Brown, S. Brandsberg-Dahl, A.V. Mavilio, N. Chemingui, D. Whitmore, M. Farouki
Indonesian Petroleum Association
... inversion (FWI) and separated wavefield imaging (SWIM) for prestack depth migration (PSDM) velocity model building and imaging. The data under...
2014
High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia
Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree
Indonesian Petroleum Association
... model for FWI was derived from a pre-stack time migration velocity that was converted to a depth interval velocity with smoothing applied. Figure 5...
2023
Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological Structure, Western Berau - Papua, Indonesia
Purbo Santoso, Yayat Supriatna, Tepy Septyana, Leo Tjahjadi, Yonghe Guo
Indonesian Petroleum Association
...Hybrid Velocity Model Building: 3D Ocean Bottom Cable (OBC) Orthorhombic Full Waveform Inversion (FWI) Depth Imaging of a Complex Geological...
2019
ABSTRACT: Gulf of Suez: An Integrated G&G Study for Structural Model Definition, by Manera, Martina; Andreoletti, Clara; De Vincenzi, Luca; Sayed Adb El Fattah, Mohmoud; #90135 (2011)
Search and Discovery.com
2011
Full Waveform Inversion for Complex Near-Surface Imaging Using SEG SEAM II Synthetic Model; #42322 (2018)
Ali A. Mohamed, Abdullatif A. Al-Shuhail
Search and Discovery.com
.... In this article, we tested and applied Full Waveform Inversion as a high-end technology in velocity model building and seismic wave migration for imaging complex...
2018
Velocity and Velocity
M. Al-Chalabi
Petroleum Exploration Society of Australia (PESA)
... Processing Assumption of uniform ground Pre-Stack & Model of ground 1------.. Depth Domain Processing structure/ velocity Fig. 7. The velocity cycle...
2000
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
.... shallow images resulting from Pre-Stack Depth Migration using the final shallow velocity model and the picked PSTM velocity model (Figure 5). Initial...
2011
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... velocity model is smooth, vary laterally, isotropic, and given in depth domain, hence as a candidate for performing depth migration. perturbation theory...
2009
Abstract: Automatic Velocity Model Building Using Waveform Inversion and Least Squares Reverse Time Migration; #90319 (2018)
Young Seo Kim, Ali Almomin, Yimin Sun, Woodon Jeong, Yi Luo
Search and Discovery.com
...Abstract: Automatic Velocity Model Building Using Waveform Inversion and Least Squares Reverse Time Migration; #90319 (2018) Young Seo Kim, Ali...
2018
Seismic Foldout: The Most Advanced Datasets Offshore Barbados and T&T
Jeniffer Masi, Jeroen Hoogeveen, Nick Tanushev, John Walker, Alexander Mihai Popovici, Geoex MCG, Z-Terra
GEO ExPro Magazine
... velocity model. After the migration is completed, each of the resulting depth migrated beams contain the following information (among others...
2022
A method for assessing earth model uncertainty in the Taranaki Basin, New Zealand
Edward Lewis, Dennis van der Burg, Tony Martin, Lorenzo Russo, Tony Bell
Petroleum Exploration Society of Australia (PESA)
... migration velocity model building project, such as shown here, we deliver a single final velocity model and its associated seismic products. The only...
2018