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The AAPG/Datapages Combined Publications Database
Showing 34,457 Results. Searched 200,357 documents.
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
... automatic time picks with the manual time picks. Velocity Determination The formation velocity vf can be estimated by assuming the refraction geometry...
2013
-- no title --
user
Search and Discovery.com
... of wavelet stretching is offset dependent tuning for thin beds. Even though tuning is inherent in the data before NMO correction, its effect on AVO...
Unknown
-- no title --
user
Search and Discovery.com
... of wavelet stretching is offset dependent tuning for thin beds. Even though tuning is inherent in the data before NMO correction, its effect on AVO...
Unknown
Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance
Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... of vertical fracture, the unconventional shale reservoir exhibits both nonhyperbolic moveout effect in far-offset gathers and azimuthal arrival time...
2016
2-D Correlation and Stratigraphic Analysis
Charles Kerans, Scott W. Tinker
Special Publications of SEPM
... and shale deposited in a salina/sabkha setting, provided a good datum choice for an initial correlation because its depositional environment implies...
1997
A Statistical Approach to Assessing Depth Conversion Uncertainty on a Regional Dataset: Cooper-Eromanga Basin, Australia
David Kulikowski, Catherine Hochwald, Dennis Cooke, Khalid Amrouch
Petroleum Exploration Society of Australia (PESA)
...; average (pseudo) velocity, time-depth trend, kriging with external drift using TWT, and kriging with external drift to tie stacking velocities to average...
2016
A new system for efficiently acquiring vertical seismic profile surveys
Tim Dean, Nghia Nguyen, Brenton Armitage, Huw Rossiter
Petroleum Exploration Society of Australia (PESA)
... uncertainty values. Even for small time uncertainty values the effect on velocity is quite dramatic, for example a value of ±0.2 ms gives a velocity...
2018
Integrated Full Waveform Inversion and Dip Constrained Tomography for Complex Carbonate Imaging - Case Study from Indonesia
Yonghe Guo, Jun Wang, Pongga Wardaya, Riaz Alai, M Afiq B Mokhtar, Rizki Krishna Pratama, Haryono Haryanto
Indonesian Petroleum Association
... PSDM velocity model building as described by Zhou et al. (2003) and Guillaume et al. (2012). Reflection tomography picks the residual move out...
2018
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... to very low velocity values the magnitude of the S-wave statics is several times larger than the P-wave statics, producing a very destructive effect...
2015
Abstract: Supervirtual S-wave Refraction Interferometry for Converted Wave Statics and Near-Surface S-wave Velocity Model Building; #90224 (2015)
Kristof De Meersman and Yoones Vaezi
Search and Discovery.com
... is our lack of knowledge of the near-surface S-wave velocity structure. This makes it difficult to derive receiver statics for time imaging and severely...
2015
Fault Shadow Issues and Resolution in Model and Real Data
Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
... misinterpretations. In the time domain, normal faults can produce fault shadows. This is apparent even in environments with simple velocity fields...
2002
Abstracts: Seismic Attributes on Frequency-enhanced Seismic Data; #90173 (2015)
Satinder Chopra, Kurt J. Marfurt, Somanath Misra
Search and Discovery.com
... to model and remove multiples on NMO-corrected gathers using the multiple velocity. Examples of the application of structure oriented filtering...
2015
Displacement distributions on extensional faults: Implications for fault stretch, linkage, and seal
S. A. Stewart
AAPG Bulletin
... vector (arrows on fault plane), an additional possible effect of cutoff stretch, is also shown (Roberts, 1996). The purpose of this article...
2001
S1P and S2P separation and shear wave splitting correction for SVP data
Yuan Yuan Yue, Zhongping Qian, Hongmei Nie, Pengyuan Sun, Zhiwen Deng, Jianfeng Li
International Meeting for Applied Geoscience and Energy (IMAGE)
...) azimuthal CCP stacking when converted-wave velocity is used for NMO correction. Table 1: Model parameters Layer 1 2 3 4 (m/s) Vp Vs 1500 1700...
2022
Facies and Stratigraphic Controls on Velocity Anomalies in The North Madura Platform, Offshore East Java Basin
Fithra Harris Darmawan, Shakila Bt Mustaffa, Aditya Kusuma Wijaya, M Nauvall Juliansyah, Geovani Kaeng
Indonesian Petroleum Association
... in the North Madura Platform: vertical velocity variation, lateral velocity variation, pull-up effect, and push-down effect. These phenomena have affected...
2019
Star: Shallow Time Anomaly Replacement
Michael O. Marcoux, Lee Lu
Southeast Asia Petroleum Exploration Society (SEAPEX)
... by the thickness/ velocity ratio. Thus, the LVT acts as a thin lens would in optics and the effect on a wavefront is to cause a time delay depending...
1982
Abstract: Predicting Free Surface Multiples without the Water: SRME on Land; #90224 (2015)
Keith Wilkinson, Richard Bale, and Ken Gray
Search and Discovery.com
... into a weathering thickness with a velocity of 770m/s and interpolated onto the bin grid. To simulate the effect of unknown near surface statics, we...
2015
Imaging Seismic Data with High Resolution Gravity Data.
R. Opfer
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... required a time or static correction to remove the effect of elevation and time distortions caused by velocity variations in the near surface geology...
2003
Pre-Stack Calibration to Well Data: Intercept & Gradient Scaling A Case Study From the Norwegian North Sea
Nguyen Nam, Larry Fink
Indonesian Petroleum Association
... the seismic wavelet, are not discussed in this paper. The causes for AVO scaling problems, such as multiples, incorrect velocity, residual NMO...
2007
Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin
K. Bradey
Papua New Guinea (PNG) Petroleum Convention Proceedings
... is limited by the clarity of the image in time. 144° OS'E 144° 10’ E Figure 7. Depth Structure Map of Anama, using the Dix method. Stacking Velocity...
2000
Abstract: Relaxing the Near-Surface assumption in Estimating 3C Receiver Orientations: Azimuth-Stack Power Optimization of Reflected PS Data; #90187 (2014)
Nirupama (Pam) Nagarajappa, Peter Cary, and Chuck Ursenbach
Search and Discovery.com
... energy rather than from P-wave first-breaks. This new method finds a solution that maximizes the power of the stack over azimuth of the NMO-corrected PS...
2014
Depth Conversion in the Llanos Basin: Workflow to Reduce Fault Shadow Effect.
Andrew Chermak, Gabriel Veloza Fajardo, Juan Carlos Ramón
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... and field development. The fault shadow effect, caused principally by the low velocity Leon-C1 zone, creates false anticlinal structure in time whereas...
2009
Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data
Paul L. Stoffa
Circum Pacific Council Publications
... T is the two-way normal time and V is the hyperbolic array or stacking velocity. Typically, constant-velocity normal-moveout displays of the CMP gathers...
1989
Broadband data with a new low frequency source Acquisition and processing example from the Gulf-of-Mexico
Xuefeng Shang, Maksym Kryvohuz, Hamish Macintyre, Guido Baeten, Thibaut Allemand, Philippe Herrmann, Stephane Laroche, Shuki Ronen
International Meeting for Applied Geoscience and Energy (IMAGE)
... an overkill in the mid-band frequency range. Secondly, NMO stretch effect in migration generally shifts data towards to lower frequency, meanwhile...
2023
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
... (FWI) is the natural choice for building velocity models in areas of complex structures. However, narrow-azimuth (NAZ) streamer data with limited offsets...
2023