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The AAPG/Datapages Combined Publications Database

Showing 1,037 Results. Searched 197,348 documents.

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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: 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

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

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

Value of conventional PS-wave velocity analyses for PSDM of deep-water OBS data

James Gaiser, James Simmons, Moacyr de Souza Bezerra

International Meeting for Applied Geoscience and Energy (IMAGE)

... provides a valuable initial S-wave model of the shallow overburden for PS-wave PSDM. used to establish a depth velocity model to perform normal moveout...

2022

Seismic Stratigraphy of Veracruz Tongue, Deep Southwestern Gulf of Mexico

Allen J. Bertagne

AAPG Bulletin

..., Deep Western Gulf of Mexico Cores can be correlated with seismic reflections if the velocity of sediments vs. two-way traveltime (or depth) at the core...

1984

Abstract: Imaging Scattered Seismic Energy in Alberta Oil Sands; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... of the anisotropy and the curved raypaths of the depth-dependent velocity. Examples A prestack Kirchhoff time migration module which outputs a set...

2014

Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)

Jie Zhang, Oz Yilmaz, and Nanxun Dai

Search and Discovery.com

... roles. For processing land data from mountainous areas, using the first-arrival traveltime tomography approach to resolve the near-surface structures...

2015

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02  x 2 VRMS (1) Here T0...

Unknown

Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

.../depth ratio. Conventional velocity analysis uses hyperbolic approximation for the reflection traveltimes: t( x) 2 T02  x 2 VRMS (1) Here T0...

Unknown

Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

... a spherical wavefront. The raypath and gridded traveltime estimations assume that the local velocity in the area defined by the defined times is constant...

Unknown

Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps

John C. Bancroft

Search and Discovery.com

... a spherical wavefront. The raypath and gridded traveltime estimations assume that the local velocity in the area defined by the defined times is constant...

Unknown

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