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The AAPG/Datapages Combined Publications Database

Showing 1,097 Results. Searched 200,357 documents.

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Geometric and seismic interpretation of the Perdido fold belt: Northwestern deep-water Gulf of Mexico

Rion H. Camerlo, Edward F. Benson

AAPG Bulletin

... in 1996. Data quality significantly improved by the late 1990s, especially the imaging and recording of data to much greater depth (traveltime...

2006

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... The success of any depth velocity model building (VMB) process depends upon the quality of the input dataset. TECH TALK Figure 1: Map showing location...

2016

Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring

Leah J. Hogarth, Conrad Kolb, Joël Le Calvez

GCAGS Transactions

.... Measurements of the velocity field, reflectivity, and attenuation provide crosswell products such as traveltime and attenuation tomography (e.g., Carrillo...

2016

Structure and Development of Porcupine Seabight Sedimentary Basin, Offshore Southwest Ireland

D. G. Masson, P. R. Miles

AAPG Bulletin

...------------ The Porcupine Seabight is a conspicuous embayment in the continental margin southwest of Ireland (Figure 1). Water depth within...

1986

Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China

Hongliu Zeng, Robert Loucks, Xavier Janson, Guizhong Wang, Yiping Xia, Bingheng Yuan, Ligui Xu

AAPG Bulletin

... of this algorithm is an unmigrated poststack-time 3-D volume that is then depth migrated using a smoothed velocity model (Janson and Fomel, 2011). No random...

2011

Chapter Thirteen: 4-D Reservoir Monitoring

Alistair R. Brown

AAPG Special Volumes

... then differenced and these difference volumes sliced. One such velocity difference depth slice is shown in Figure 13-8, demonstrating in color the effect...

2011

Inversion of Magnetotelluric (MT) Data with Enhanced Structural Fidelity, #42333 (2018).

Federico Golfre Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti

Search and Discovery.com

.... Unfortunately, these techniques lack the resolution required to infer the geologic setting at depth and to build a structural model with adequate...

2018

Abstract: Regime Rays: Visualizing the Fermat/Snell Loci in Homogeneous Anisotropic Media; #90171 (2013)

William J. Vetter

Search and Discovery.com

... between paired points on the wave surfaces and their ansatz-front-normal velocity representation surfaces. From traveltime ansatz to regime rays...

2013

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...

Unknown

Anisotropy Kinematics Clarified through Regime Rrays Model

William J. Vetter

Search and Discovery.com

..., (3) not direction-wise orthagonal to front tangent planes; (4) and, velocity or slowness magnitudes along loci directions differ from those in front...

Unknown

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

... wavefield attribute sections that are useful in further processing such as tomographic velocity model inversion and depth migration processing...

2007

Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers

Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel, Ersan Turkoglu

International Meeting for Applied Geoscience and Energy (IMAGE)

...ovide good overall understanding of the survey area, based on which we build the starting earth models. Then, we add velocity and depth varia...

2022

High-resolution seismic monitoring insights on stress and fault orientations in the Delaware Basin

Adam M. Baig, Aaron Booterbaugh, Sepideh Karimi

International Meeting for Applied Geoscience and Energy (IMAGE)

... in a nonlinear optimization problem involving a three-dimensional velocity model. These locations are refined by consistent repicking implemented...

2022

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

.../s (6900-ft/s) velocity contour, which shows bedrock depth at approximately −1-m (3-ft) elevation. This correlates with bedrock located in core 8...

2016

Structural Features of the Crystalline Basement of the Volgograd Area on the Volga in Connection with Evaluation of the Oil-Gas Prospects of the Devonian Clastics

O. D. Kazantsev, V. N. Khlystova, L. M. Naydis

Petroleum Geology: A Digest of Russian Literature

... basement and constructed from linear traveltime curves: a-surface of the basement of Proterozoic age (provisional); b-surface of the basement of Archean...

1962

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the target events for FWI. This area is characterized by fast velocity bodies located in the shallow to mid-depth region of the subsurface...

2022

Predicting Waterflood Behavior by Simulating Earth Models with No or Limited Dynamic Data: From Model Ranking to Simulating a Billion-Cell Model

Joseph Hovadik, David Larue

AAPG Special Volumes

...) or an approximation to the velocity of the advancing waterfront (obtained by solving the Darcy equation for a single pressure step).In the cases considered here...

2011

Bering Sea Velocity-amplitude Anomalies: Exploring the Distribution of Natural Gas and Gas-hydrate Indicators

Ginger A. Barth, David W. Scholl, and Jonathan R. Childs

AAPG Special Volumes

... acquisition. CDP denotes common-depth-point number along seismic line 21.FIGURE 2. A velocity-amplitude anomaly (VAMP) interpretation diagram, showing...

2009

S-wave velocity model building using PP-PS tomography with dynamic warping

Terence Krishnasamy, Ronaldo Florendo, Aravind Nangarla, Carsten Udengaard, Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model for an existing deep-water ocean-bottom node (OBN) survey in the Gulf of Mexico. Introduction The water depth in the study area ranges...

2023

Application of full-waveform inversion to ultra-high-density OBN data at Clair field

Simon Luo, Xukai Shen, Philip Tillotson, Lindsey Smith, Dan Davies

International Meeting for Applied Geoscience and Energy (IMAGE)

... of (a,e) inline, (b,f) crossline, (c,g) depth slices, and (d,h) RTM images from the (top) legacy velocity and (bottom) updated FWI model...

2022

Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals

Mike Perz, Josef Heim, Candace Bruins

Unconventional Resources Technology Conference (URTEC)

...Shallow Velocity Model Building Considerations for Prestack Depth Migration in Unconventionals Mike Perz, Josef Heim, Candace Bruins URTeC: 399...

2019

Seismic-attribute Analysis for Gas-hydrate and Free-gas Prospects on the North Slope of Alaska

M. W. Lee, T. S. Collett, T. L. Inks

AAPG Special Volumes

... of brine-gas-mixture on velocity in an unconsolidated sand reservoir: Geophysics, v. 41, p. 882894.Helgerud, M. B., 2001, Wave speeds in gas hydrate...

2009

The Global Offset Seismic Approach: Improving Seismic Imaging In Complex Geological Settings

Paolo Dell'Aversana

Petroleum Exploration Society of Australia (PESA)

... as a valid support for static corrections, velocity analysis and migration. Pre-stack depth migration (PSDM) The CMP gathers were used as an input for a PSDM...

2004

A Multidisciplinary Approach to Reservoir Subdivision of the Maastrichtian Chalk in the Dan Field, Danish North Sea

Lars Kristensen , Thomas Dons , Kim Gunn Maver , Poul Schioler

AAPG Bulletin

...-to-time conversions done for tying the biostratigraphy to the seismic data. The seismic traveltime within the chalk was estimated from interval velocity...

1995

Salt tectonics in the western Gulf of Cadiz, southwest Iberia

Hugo Matias, Pedro Kress, Pedro Terrinha, Webster Mohriak, Paulo T. L. Menezes, Luis Matias, Fernando Santos, Frode Sandnes

AAPG Bulletin

... isopach map of unit 1 was depth converted using a constant velocity of 4500 m/s, as shown in panels A and C of Figure 8. The synoptic map in Figure 8C...

2011

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