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The AAPG/Datapages Combined Publications Database
Showing 1,097 Results. Searched 200,357 documents.
AAPG Memoir 76, Chapter 16: Pore Pressure ahead of the Bit: An Integrated Approach
Nader C. Dutta, William H. Borland, W. Scott Leaney, Richard Meehan, and W. Les Nutt
AAPG Special Volumes
... is generally in the form of a prediction of acoustic impedance vs. two-way traveltime. Using an empirical velocity-density relationship...
2001
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
... velocity vs. burial depth varies from irregular to virtually linear response in some wells. Almost all wells display a drop in sonic velocity...
2002
Near Surface Imaging using Joint Seismic Gravity Inversion
Teguh Suroso, Boko Nurdiyanto, Trilaksita B. Nugraha, Lita Novitasari, Heri Winarto
Indonesian Petroleum Association
... traveltime and gravity data as inputs and minimizes an overall objective function in a single inversion run to obtain near surface velocity and density...
2019
Chapter Ten-part 2: Depth Conversion
Leslie R. Denham, Dave K. Agarwal
AAPG Special Volumes
... to depth directly. Some corrections are usually needed: a correction for a near-surface low velocity layer at the source; corrections of source elevation...
2011
Practical considerations for computing the kernels of reflection-based full-waveform inversion
Houzhu (James) Zhang, Hong Liang, Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... traveltime shifts from dynamic for velocity inversion. 1 Second International Meeting for Applied Geoscience & Energy 10.1190/image2022-3739640.1 Page...
2022
Strike Oriented, Swath Seismic and Its Potential Application to Exploration and Development in the Papuan Fold and Thrust Belt
William F. Robinson IV
Papua New Guinea (PNG) Petroleum Convention Proceedings
... velocity can be used to compute the ray length (also known as slant path depth). The orientation and length of the ray define the coordinates...
1996
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... here. This expression may be used as the engine for an iterative non-linear inversion algorithm that will allow us to compute velocity models...
2015
Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia
Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran
Indonesian Petroleum Association
... was used to attack the water bottom and supra-fold multiples which are strong throughout the region. Velocity model building and prestack depth migration...
2000
Abstract: Migration Velocity Analysis Using the Common Image Cube, by Saleh M. Al-Saleh; #90105 (2010)
Search and Discovery.com
2010
Abstract: Advantages and Disadvantages of Array Depth Placement and Longer Toolstring Apertures; #90187 (2014)
N. Verkhovtseva and J. Shaffner
Search and Discovery.com
... velocity model analysis when it is harder to achieve small traveltime residuals on all levels. Good calibration data with P- and S-waves visible...
2014
Abstract: Full Waveform Inversion of Borehole Data in the Presence of High-Velocity Screens; #91204 (2023)
Ali Aldawood, Andrey Bakulin, Fuqiang Chen
Search and Discovery.com
... when the velocity model changes sharply. With the aid of differentiable dynamic time warping distance (DDTWD), which focuses on traveltime difference...
2023
Slope estimation of locally coherent events by polarization analysis of multi-component seismic data: Application to stereotomography for sparse node acquisition
Xiaole Zhou, Alessandra Ribodetti, Stephane Operto
International Meeting for Applied Geoscience and Energy (IMAGE)
...) for source at (4200m, 100m). Figure 1: Velocity model with a reflector at 1.5 km depth (blue line). Yellow line delineates source-receiver spread...
2024
Simultaneous Joint Inversion of Seismic, Magnetotelluric and Gravity in a Sub-Volcanic Reservoir
Muhammad Irsyad Hibatullah, Maulana hutama Rahma Putra, Firman Syaifuddin Akbar, Dwa Desa Warnana, Fahrenzy Yona Aisha
Indonesian Petroleum Association
... Gravity Inversion is strongly influenced by weighting which depends on the cell depth. 2D Seismic Traveltime Tomography Independent Inversion Result...
2019
Abstract: Near-Surface Velocity Estimation Using Source-Domain Full Traveltime Inversion and Waveform Inversion; #90319 (2018)
Lu Liu, Bowen Guo, Yi Luo
Search and Discovery.com
...Abstract: Near-Surface Velocity Estimation Using Source-Domain Full Traveltime Inversion and Waveform Inversion; #90319 (2018) Lu Liu, Bowen Guo, Yi...
2018
First-arrival traveltime and slope tomography in tilted anisotropic media with undulant topography
Xiaole Zhou, Serge Sambolian, Gaoshan Guo, Stephane Operto, Haiqiang Lan, Ling Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
...-coherent events to build high-resolution subsurface velocity models. These models can be further used as background/initial models for depth migration...
2022
Application of Advanced Depth Imaging Technology in Shallow Water Offshore Indonesia
Michael Gidding, Suyang Chen, Steven Wiseman, Moch Asrori, Richard Bolton
Indonesian Petroleum Association
... gradients.Grid based tomography is a robust, 3D ray-based inversion method used to refine velocity models for depth migration. Residual traveltime errors...
2012
Enhance near-surface velocity tomogram using land-streamer data
Sherif M. Hanafy
International Meeting for Applied Geoscience and Energy (IMAGE)
... surveys. The proposed approach is tested using one field example. The traveltime tomogram of the conventional + land-streamer data shows the same depth...
2022
Abstract: Rapid Velocity Images of Complex Structures, by P. J. Barton and R. A. Edwards; #90923 (1999)
Search and Discovery.com
1999
Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study
Andreas Waluyo
Indonesian Petroleum Association
... migration workflow that includes designature to zero phase, random and linear noise attenuation, multiple elimination, Kirchhoff prestack depth...
2014
High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration
Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen
AAPG Bulletin
... in the migration because of accumulative traveltime errors caused by an inaccurate velocity model. To mitigate this issue, we present a coherent-stack...
2024
Optimized downward continuation for the one-way wave equation in TTI media
Cosmin Macesanu, Faqi Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
.... To reduce the magnitude of these errors, the reference velocity at each depth may be replaced by a velocity function which is a smooth version...
2022
Influence of structure on Mississippian paleotopography and distribution of Middle Pennsylvanian sandstone reservoirs on the Cherokee platform, northern Oklahoma
Kevin J. Toth and James O. Puckette
AAPG Bulletin
... are in the southeastern part of the survey and surround the linear feature, which has higher two-way traveltime and a thicker interval than areas...
2021
Understanding Hydraulic Fractures in Tight-gas Sands through the Integration of Borehole Microseismic Data, Three-dimensional Surface Seismic Data, and Three-dimensional Vertical Seismic Profile Data: A Jonah Field Case Study
Nancy House, Julie Shemeta
AAPG Special Volumes
..., are minimized with a linear regression routine. Calculated traveltimes are computed by constructing a velocity model finding the minimum traveltime from...
2008
Abstract: Data Processing from a Single-Well Microseismic Monitoring in Western Canada Using a Newly Developed MATLAB Based Package (Camps); #90224 (2015)
Jubran Akram and David W. Eaton
Search and Discovery.com
... velocity model was calibrated with the recorded perforation shots using a non-linear optimization (pattern-search based) approach (Akram and Eaton...
2015