ABSTRACT: Time Extrapolation of the Double-Square-Root Equation: Prestack Exploding Reflector Modeling and Migration, by Alkhalifah, Tariq A.; Fomel, Sergey; #90141 (2012)

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Abstract: Advances in Seismic Data Acquisition; #90211 (2015)

David Monk

Search and Discovery.com

... that are recorded for each shot, and this trend shows no sign of diminishing. The changing face of the computing industry is likely to keep up...

Abstract: Improved Subsurface Imaging through Reverse Time Migration: A Synthetic Case Study; #90255 (2017)

Pradeep Mahadasu

Search and Discovery.com

... modeling field and backward in time for the recorded receiver field for that shot. At each time step, the depth image is obtained by cross-correlating...

Abstract: Detecting and Determining Bauxite Layer Depth by Using Multichannel Analyses of Surface Wave Method; #90254 (2016)

Saad Almalki, Majed Almalki, Abdurahman Alanezi, Abdulaziz AlMutairi

Search and Discovery.com

...-receiver offset. This offset was defined to form a common and certain offset range during the analysis, where the offset remains fixed for each shot...

Abstract: Constrained 3D VTI Full Waveform Inversion of Wide Azimuth Data from the Red Sea, Saudi Arabia; #90254 (2016)

Young Seo Kim, Constantine Tsingas

Search and Discovery.com

... of forward and backward propagated wavefields. In addition to the modeling operator, the gradient vector and pseudo-Hessian, which are necessary...

P-shooter--A Fast Seismic Source for Shallow Exploration: ABSTRACT

Gildas Omnes, Philippe Robert

AAPG Bulletin

... damages to a road surface. The whole system is mounted on the back of a 4 by 4 truck. The tower can be moved forward, backward, and to some extent...

Utilizing the Two-Way Wave Equation: Reverse Time Pre-Stack Depth Migration

Matthew H. Karazincir, Clive M. Gerrard, Andrew Long, Lynn B. Comeaux

Indonesian Petroleum Association

... because it requires consecutive forward and backward wavefield modeling. The classical way to perform forward, or backward, wavefield modeling uses...

High-fidelity full-waveform imaging via impedance inversion

Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... signature excited at shot location and ( ; ; ) is the seismic data, i.e., the recorded pressure wavefield at receiver location . An imaging condition in terms...

Exploration and Development based on RTH Technology and AI

Gennady Erokhin, Mariia Erokhina, Kirill Safran, Alexandre Iakovlev

Unconventional Resources Technology Conference (URTEC)

... Holography) method and well drilling data. RTH attributes are based on two-stage seismic data processing: on decomposition the initial common shot gathers...

Abstract: The Phase Shift Time Stepping Equation and the Marmousi Data Set; #90171 (2013)

Ben D. Wards, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... velocity partition. Figure 2: Left: An image the Marmousi data set using PSTS RTM. Right: The run time for migrating a shot record is 12 minutes...

Abstract: Applicability of TTI RTM to Structured Land Datasets; #90172 (2014)

Charles Ursenbach, Yan Yan

Search and Discovery.com

... will assist us in seeing the best way forward at this point in seismic land exploration. Method In RTM, migration is performed on one shot gather...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

...Data selection for velocity model estimation using a circular shot OBN survey Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe...

ABSTRACT: Hierarchical Stacking Geometries of Genetic Sequences: Implications for Predicting Geometry and Distribution of Reservoir Facies Tracts, by Timothy A. Cross; #91038 (2010)

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Abstract: Reverse Time Migration of Prestack Elastic Data; #90224 (2015)

R. Ferner and M. D. Sacchi

Search and Discovery.com

... . Although the forward process is outlined, this algorithm can be run forwards or backward in time. Depicted is the second-order finite-difference stencil...

Multiwell 3D DAS-VSP data acquisition for offshore exploration in the Middle East

Qingfeng Li, Gang Yu, Jilong Zhao, Dong Huang, Yangshuan Fan

International Meeting for Applied Geoscience and Energy (IMAGE)

..., which in turn leads to a phase change in the photon backward Rayleigh scattering light, the seismic signal can be obtained through demodulation...

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

... limitations in terms of imaging complex structures. The standard shot profile one-way WEM images the subsurface by continuing the source and receiver...

Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well

Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

... using a racetrack shooting pattern. Two source arrays of 5110 cu in. volume, positioned at a depth of 49.2 ft [15 m] below sea level, were shot...

Abstract: Parasequence Sets, Parasequences, Facies Distributions, and Depositional History of the Upper Cretaceous Ferron Deltaic Clastic Wedge, Central Utah, by T. A. Ryer and P. B. Anderson; #90959 (1995).

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Deep compressed learning for 3D seismic inversion

Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo

International Meeting for Applied Geoscience and Energy (IMAGE)

... Comments 58 Cubes × (192 × 64 × 496) One bit per shot (i.e. cube) + InstanceNormalization + InstanceNormalization + Dropout(0.2) without MaxPool3D...

Application of Anisotropic 3D Reverse Time Migration to Complex North Sea Imaging; #41573 (2015)

M. A. Hall, I. F. Jones, M. C. Goodwin, I. D. Berranger, H. Zhou, P. A. Farmer

Search and Discovery.com

... environments, where both steep dips and multipathing are an issue. Standard shot-based one-way WE preSDM techniques image the subsurface by extrapolating...

A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., to a sparsely shot 3D dataset to assess the value and limitations of current technology. METHODOLOGY The large volume of prestack data (and attendant...

Abstract: Inexact Full Newton Method for Full Waveform Inversion Using Simultaneous Encoded Sources; #90187 (2014)

Amsalu Y. Anagaw and Mauricio D. Sacchi

Search and Discovery.com

... of sources within the experiment. The basic idea of the simultaneous shot method is to create super-shots through the summation of individual sources...

4D Regional Evolution of Gravity Driven Systems: Comparison between Salt and Shale Tectonics and Petroleum Implications, by Philippe de Clarens, Xavier du Bernard, Jean-Loup Montenat, and Stephane Raillard; #90037 (2005)

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High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

... seismic data. These modelled shots are then compared with the acquired (observed) recorded seismic shots. The residual differences are backward propagated...

Abstract: Transmission Imaging: Moving Source Offset VSP (MSOVSP) Case Study; #90172 (2014)

Emmanuel Bongajum, Bernd Milkereit, Douglas Schmitt

Search and Discovery.com

... 600m on either side. Figure 2 shows the vertical component record of the shot gather. Note the asymmetry in the direct arrivals which can...