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The AAPG/Datapages Combined Publications Database
Showing 69,560 Results. Searched 195,387 documents.
Abstract: Seismic Frequency and Stratigraphic Resolution in the Lodgepole Play, by J. A. Andrew; #90952 (1996).
Search and Discovery.com
1996
Imaging the presalt with elastic FWI using OBN data
Gabriel Brando, Benjamin Huard, Luis Cypriano
International Meeting for Applied Geoscience and Energy (IMAGE)
... the shallow post-salt to deep basement depths. Figures 3a,b show post-salt depth slices at 2300 m for the EFWI Image (derivatives of velocity along...
2023
Investigating Depth Structure Uncertainty for Horizontal Well Placement, Bauer Field, Cooper-Eromanga Basin
Erin Shirley
Australian Petroleum Production & Exploration Association (APPEA) Journal
... domain. The first depth conversion method utilised a pseudo average velocity time-depth function methodology. This method was used with the Dn marker...
2018
Simultaneous Joint Inversion of Seismic and Gravity Data for Long Offset Pre-Stack Depth Migration in Northern Oman, #41569 (2015).
D. Colombo, M. Mantovani, M. De Stefano, D. Garrad, Hussain Al Lawati
Search and Discovery.com
... depth. The portion of the velocity model deeper than 4 km was therefore finalized using seismic data alone. The obtained depth image (Figure 2...
2015
Abstracts: The Conventional and Non-conventional Seismic Differencing; #90173 (2015)
Vanja Vracar and Robert J. Ferguson
Search and Discovery.com
... modelling Stoffa et al. (1990) introduce the SSF migration algorithm, which handles lateral changes in velocity at each depth level taking dipping...
2015
Chapter 8: Evaluation of Anomalous Pressuring and Gas Saturation Using 2-D and 3-D Visualizations of Well Log Information
Zun S. Jiao, Ronald C. Surdam
Montana Geological Society
...") below the pressure boundary surface using one-, two-, and three-dimensional velocity modeling and visualizations of well log and seismic...
1997
Evaluation of possible gas microseepage mechanisms
Alton Brown
AAPG Bulletin
.... The relative decrease in velocity due to increased drag is a function of the position of the particle between the walls and the ratio...
2000
Depth of Investigation for Linear Flow: Theory and Practice
Arjun Ravikumar, John Lee
Unconventional Resources Technology Conference (URTEC)
..., in general). We also compare the depth of investigation calculated from the impulse function method with the time to the end of linear flow...
2018
Best Fitting of NMO Equations and Depth Conversion
Search and Discovery.com
N/A
ABSTRACT: Application of Stratigraphic Simulation to AVO Analysis, by S. A. Bouman; #91021 (2010)
Search and Discovery.com
2010
Broadband Least-Squares Wave-Equation Migration
Shaoping Lu, Andrew Long, Alejandro Valenciano, Nizar Chemingui
Petroleum Exploration Society of Australia (PESA)
...), and the earth properties at the reflector depth and the overburden (velocity, attenuation). Some of these conditions can be mitigated during acquisition...
2018
Tackling data challenges in land FWI: A case study
Victor Lopez, Yun Dong Guo, QingYang Li, Bin Yu, Changhua Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... significant improvements to the velocity and seismic imaging were achieved. 4. Reflection Tomography. The initial velocity model was created using well...
2023
Interpretative PSDM Workflow for Solving Complex Imagery Below Faults and Carbonates Reefs in South Mahakam, Kutai Basin: An Interpreters Point of View
Cepi Muhamad Adam, Nadir Abdoun, Bertrand Duquet, Florent Bertini, Yves Le Stunff
Indonesian Petroleum Association
.... Initial Velocity Model and Shallow Horizons Interpretation A first Kirchhoff depth migration was run using an initial smoothed velocity model derived...
2009
Quantitative seismic interpretations to detect biogenic gas accumulations: a case study from Qaidam Basin, China
Yexin Liu, Zhuoheng Chen, Liqun Wang, Yongshu Zhang, Zhiqiang Liu, Yanhua Shuai
CSPG Bulletin
... be inverted using seismic AVO analysis. The SVM does the training and prediction of petrophysical data based on a function of the form: (10) t ( x...
2015
Correlation of Acoustic Velocity, Stress, Rock Composition, Organic Matter and Rock Lamination in Organic-Rich Shales
Adel A. Alqahtani, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... et al. (1997) conducted a linear multivariate analysis resulting in a velocity-porosity-carbonate content transform that can help predicting...
2016
Fault Shadow Correction Methodology
P. Julien, J. L. Broyer, O. Bernet-Rollande
Indonesian Petroleum Association
... method. An initial 2D-depth model is built using dip seismic lines and a regional velocity function, which is then manually edited to remove...
2000
Accurate Depth Conversions Reduce Risk
Larry C. Luton, Corine Prieto
GCAGS Transactions
... is not a new concept. The challenge lies in the proper selection of velocity data and model types that will generate accurate depth maps for evaluation...
2000
Earth crustal analysis of Northwest Sabah region inferred from receiver function method
Abdul Halim Abdul Latiff, Faridah Othman
Geological Society of Malaysia (GSM)
.../s respectively as it hits the Moho boundary at 40 km depth. Keywords: Receiver function, crustal thickness, velocity structure, Kota Kinabalu INTRODUCTION Sabah...
2020
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... using a single v(z) velocity function. This approximation to the velocity field causes further inaccuracies in the prediction of the diffraction...
2000
ABSTRACT: Incorporation of Geology, Wells, Rockphysics into Anisotropy Estimation for Seismic Depth Imaging Enables “True Earth Model”
Search and Discovery.com
N/A
Hybridised Weighted Boot-Strap Differential Semblance
Hamish Wilson, Lutz Gross
Petroleum Exploration Society of Australia (PESA)
... semblance with an embedded weighted function which accounted for sensitivity in velocity changes with offset. They were able to demonstrate improvements...
2016
Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)
Mark Ng
Search and Discovery.com
... depth steps using a suitable time lag mapping function. Last year, I proposed to use z 2β τ ( z) = ∫ dz = 2 β (z - z 1 ) / v ( x, z ), | z − z1 | < Δz...
2013
Modification to the Hardisty Equation, Regarding the Relationship Between Sediment Transport Rate and Particle Size
Ya Ping Wang , Shu Gao
Journal of Sedimentary Research (SEPM)
... discharge, flow depth, and width. Hence, it represents the cross-sectional mean or vertical mean current velocity, U. Because the water depth in the flume...
2001
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
... anisotropy model without well constraints using the final 3D velocity model for 2D anisotropic depth migration. This case study will describe...
2012
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
... and reimaging the existing legacy data with Q prestack Kirchhoff depth migration performed in 2011 and 2014 did not accurately model the sharp velocity...
2019