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The AAPG/Datapages Combined Publications Database

Showing 29,091 Results. Searched 195,387 documents.

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Abstract: LSPSM for Pre-and Poststack Time Lapse Studies; #90187 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

... which may dominate the changes of the reflectivity model. The least squares prestack Kirchhoff migration (LSPSM) is performed separately on both...

2014

Abstract: Using-MultiFocusing 3D Diffraction Imaging to Predict Fracture Corridors/swarms in the Bazhenov Formation; #90187 (2014)

Marianne Rauch-Davies, Alex Berkovitch, Danil Pelman, and Kostya Deev

Search and Discovery.com

... of this section is computed from prestack traces arbitrarily located around an imaging position. The moveout correction does not require knowledge about...

2014

EXTENDED ABSTRACT: Regional Geology of Deep Water Salt Architecture, Offshore Gulf of Mexico

Chowdhury, Abu and Lopez-Mora, Simon

GCAGS Transactions

... and structures of the deep water region. The salt interpretation was used as an initial model for velocity modeling for prestack depth migration...

2004

Abstract: Kirchhoff Imaging in a Matrix Form. Part II: Least Squares Migration; #90174 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

... are essentially transpose process. In the case of Kirchhoff modelling, the transpose process is prestack Kirchhoff migration which is defined by, ̂ , (...

2014

Abstract: Enhanced Surface Seismic Data Processing Using Simultaneous Acquired DAS-VSP Data; #91204 (2023)

Gang Yu, Jinliang Xiong, Junjun Wu, Yuanzhong Chen, Yingshui Zhao

Search and Discovery.com

... to complete the prestack depth migration of the viscous acoustic waves, and analysed numerically the sensitivity of the macro Q model error based...

2023

Seismic Velocity Model Building in an Area of Complex Geology, Southern Alberta, Canada

Helen Isaac and Don Lawton

Search and Discovery.com

... geology. 1 Outline • Introduction to study area • Geology • Time migrated seismic data • Development of velocity models for prestack depth migration...

2009

Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)

Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman

Search and Discovery.com

... and a refraction-statics solution, we calculated residual statics over the entire survey. Prestack time migration Kirchhoff prestack time migration...

2014

Model-Based, 2-D Seismic Definition of Subthrust Structure in the Uranium Peak Area, Northwest Colorado

George C. Robertson, Dirk W. McDermott, Rex L. Tang

Rocky Mountain Association of Geologists

... employing model-based, prestack depth migration of 2-D seismic data was utilized to predict the presence of a subthrust Paleozoic section in this frontier...

1995

An approach to reduce exploration risk using spectral decomposition, prestack inversion, and seismic facies classification

Carlos Jesus, Wagner Moreira Lupinacci, Patricia Takayama, Joana Almeida, and Danilo Jotta Ariza Ferreira

AAPG Bulletin

...An approach to reduce exploration risk using spectral decomposition, prestack inversion, and seismic facies classification Carlos Jesus, Wagner...

2020

Depth correction using velocity for structure calibration at Leviathan Field, offshore Israel

Yijie Zhou, Brad Christensen, Lin Christianson

International Meeting for Applied Geoscience and Energy (IMAGE)

... correction process after the seismic migration. Depth Correction Workflow The proposed workflow converts seismic and related interpretations to time using...

2023

Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)

Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave

Search and Discovery.com

... coherencies on common image gather (CIG)s is extended to the least squares prestack migration (LSPSM) CIGs. It is shown that when the data are incompletely...

2014

What Causes those Annoying Stair-Step Artifacts on Coherence Volumes?; #42036 (2017)

Tengfei Lin, Kurt J. Marfurt

Search and Discovery.com

... algorithms that explicitly include an obliquity factor actually assume each subsurface point is part of a specular reflector. In prestack migration...

2017

Mahogany Field, a Subsalt Legend: A Tale of Technology, Timing and Tenacity, Offshore Gulf of Mexico

Wayne K. Camp and Donn McGuire

Houston Geological Society Bulletin

...), success in the play would prove to be elusive until a decade later. Advances in seismic technology, primarily 3D prestack depth migration, way...

1997

Abstract: Converted-wave Time Imaging … Nuts and Bolts; #90187 (2014)

Shaowu Wang, Thomas Hollis, and Wayne Nowry

Search and Discovery.com

.... Introduction Pre-stack time migration (PSTM) is routinely used in time processing with gentle lateral velocity variation and moderate subsurface...

2014

Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth

Isabel Cristina Florez, Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Migration in this kind of structurally complex zones. INTRODUCTION The foothills belt of the Eastern Cordillera involves high dipping siliciclastic...

2006

3-D Surface Seismic Attribute and Prestack Impedance Inversion Characterization of the Red Fork Formation, Oklahoma, USA; #41167 (2013)

Yoryenys Del Moro, Alfredo Fernandez, Sumit Verma, and Kurt Marfurt

Search and Discovery.com

...3-D Surface Seismic Attribute and Prestack Impedance Inversion Characterization of the Red Fork Formation, Oklahoma, USA; #41167 (2013) Yoryenys Del...

2013

Imaging of Fractures and Faults inside Granite Basement Using Controlled Beam Migration (Geophysics Paper 5)

Don Pham, Jason Sun, James Sun, Qingbing Tang, Graeme Bone, Nguyen Truong Giang

Geological Society of Malaysia (GSM)

.... In 2002, a study was carried out in the area using Kirchhoff prestack depth migration, which included horizon-based model building up to the basement...

2008

Exploring the horizontal component of OBN surveys for added value to imaging

Samara Omar, Jim Simmons, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

... approach to seismic modeling and prestack depth migration: 63rd Annual International Meeting, SEG, Expanded Abstracts, 888–891, doi: https://doi.org...

2023

Geophysical characterization of stratigraphic traps within the slope failure turbidite channel of Torok formation, north Slope of Alaska

Sagnik Dasgupta, Charles Inyang, Seth Riseman, David Ruckel

International Meeting for Applied Geoscience and Energy (IMAGE)

... had gone through the signal processing steps and anisotropic prestack depth migration sequence described in Alexander et al 2017. Angle stacks were used...

2023

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

Andrew V. Barrett

Search and Discovery.com

.... Kirchhoff PSTM was modified with the introduction of the concept of a differential migration time gather, where each trace in the gather represents...

2014

Abstract: Robust Rank-Reduction Filters for Erratic Noise; #90174 (2014)

Stewart Trickett, Lynn Burroughs, and Andrew Milton

Search and Discovery.com

... noise before prestack migration, as the migration operator will smear the noise across the section, making it impossible to correct afterwards. Over...

2014

Abstract: Complex-beam Migration: Non-recursive and Recursive Implementations; #90187 (2014)

Tianfei Zhu

Search and Discovery.com

...-beam method for shot-domain prestack depth migration. The method is flexible with input geometry and accurate in imaging multipathing arrivals...

2014

Seismic Imaging and Interpretive Model Building in the Colombian Andes

Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... as compared to the prestack time migration of the same data. INTRODUCTION Anisotropic depth migration in thrust-belt environments has the greatest...

2006

Unconventional Play Fracture Characterization Through Orthorhombic Depth Model Building

Guy Hilburn, Amit Pendharkar, William Keller, René Mott, Jorge Peinado, Austin Jumper, Victor Kriechbaum

Unconventional Resources Technology Conference (URTEC)

... standard approach to modeling unconventional play anisotropy is by applying a postprocessing correction to prestack time migration (PSTM, or time...

2018

Utilizing Seismic in Exploring for Subtle Traps

Kevin Werth, Patrick Bygott, Edward Teyland

PTTC

... later in the design portion ofthis paper. Less directly, but equally important is the role..dip plays in determining the need for dip moveout(DMO...

2003

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