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The AAPG/Datapages Combined Publications Database

Showing 547 Results. Searched 200,357 documents.

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Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014)

Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff Durand

Search and Discovery.com

... be corrected (Figure 1b) using the azimuthal NMO equation (Contreras et al., 1999): t 0  zero offset time (sec) 2 t 2  t0   cos 2     sin 2...

2014

Observations of Azimuthal Anisotropy in Prestack Seismic Data, #41572 (2015).

David Gray

Search and Discovery.com

... 3D visualization software, as is shown in Figure 1. It is used for quality control of azimuthal processes, such as azimuthal NMO and azimuthal AVO...

2015

Investigation of Possible Shallow Gas Accumulations Associated with Pockmarks on the Otago Slope Southeast of New Zealand

Jasper Hoffmann, Andrew Gorman, Gareth Crutchley

Petroleum Exploration Society of Australia (PESA)

... on velocity analysis are a standard procedure undertaken during long-offset seismic processing to determine accurate normal moveout (NMO) corrections...

2018

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... particularly when seismic data has poor signal-to-noise ratio (SNR) with complex geologic settings where no clear reflector is present. Considering...

2022

Section 2: Improvement of Seismic Images of Complex Tectonic Structure in Deep Water with Research-Level Processing Sequences

John Miller and Roland von Huene

AAPG Special Volumes

... have common midpoints at a common depth point (CDP). 3. Velocity analysis--applies the normal move-out (NMO) equation to the data using a series...

1986

Pie in the Sky?

Ed Hagar

GEO ExPro Magazine

... from low channel analog recording systems to high-channel count digital systems with low-noise streamers. Processing houses have taken us from NMO stack...

2019

Distribution of Nubian Sandstone Formation in Sudan and Vicinity: GEOLOGIC NOTES

J. R. Vail

AAPG Bulletin

... dip in small exposures where the topset beds are absent. However, in most areas the deposits are flat or gently dipping. The sands are also ripple...

1974

Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis

Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer

Journal of Sedimentary Research (SEPM)

... a strip of the replicating tape used in electron microscopy. The replicas were peeled off after drying, ironed flat if necessary, and mounted between...

1991

Geophysical Interpretation of Pinedale Field

Sally G. Zinke

AAPG Special Volumes

... autostaticsVelocity analysis and NMO correction 1 mi grid3-D SC autostatics Shot Domain Noise Reduction—Air Blast/Surface Wave AttenuationResidual statics QCSurf...

2014

Fractured Reservoir Prediction … A Case Study in the Sichuan Basin; #10512 (2013)

Ling Yun, Xiangyu Guo, Qianggong Song, and Weisheng He

Search and Discovery.com

.... Afterwards, NMO velocity can be obtain via velocity analysis according to the criterion of flattening the reflections. The velocity spectrum, picked NMO...

2013

A stochastic modeling method of seismic velocity and anisotropy parameters in VTI medium using travel time detectability criterion

Andrey H. Shabelansky, Huafeng Liu, Cory J. Hoelting, Min Yang, Jinsong Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... in vertical transverse isotropy (VTI) medium that are based on normal moveout (NMO) traveltime calculations and detectability criterion. We provide...

2022

Multi-Component Seismic (3C) Data Acquisition … A Case Study from Oil India Ltd. Operational Area in Upper Assam Basin, #40728 (2011)

K. L. Mandal, A. K. Khanna, Dr. R. Dasgupta

Search and Discovery.com

... 4 and 5 intervals Well A. Figure 3A. PP gathers with NMO correction at well A. Figure 3B. PS gathers with NMO correction at well A. Figure 4A...

2011

Seismic Data Compression by Variational Autoencoder With Hyperprior

Shirui Wang, Wenyi Hu, Aria Abubakar, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

...y flat and sparse. Conclusion In this study, we present a novel deep learning-based method for compressing seismic data. Instead of using a singl...

2023

Abstract: Q Estimation by a Match-filter Method; #90174 (2014)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

... indicator in conjunction with other observation such as flat spot, bright spots, and AVO anomalies. So, it will be very useful if the Q estimation method...

2014

Comparing Seismic Resolution and Signal and Noise Quality between Dense Point-Receiver and Conventional Data, Bakken Formation, North Dakota; #41160 (2013)

Niranjan Banik, Antoun Salama, Adam Koesoemadinata, George El-Kaseeh, Mark Egan, and Alfonso Gonzalez

Search and Discovery.com

... the real data. Note that this mute was tight enough to prevent normal move-out (NMO) stretch from being a significant factor in the subsequent frequency...

2013

Abstract: Towards an Optimal Workflow for Azimuthal AVO; #90171 (2013)

David Gray and Shangxu Wang

Search and Discovery.com

... interpolation, compared to Bani in Figure 5, which is the same workflow without interpolation. Figure 3: Bani from NMO gathers. Figure 5: Bani from azimuthally...

2013

Abstract: Microseismic Event Locations for Deviated Boreholes; #90187 (2014)

Amna Feroz and Mirko van der Baan

Search and Discovery.com

... analysis at each receiver location. If the possible event location is between 0 to 90 or 180 to 270(estimated from covariance analysis), then NMO...

2014

Eye-Openers from Re-Processing of Oil Sands Seismic Data; #41290 (2014)

David Gray, Seann Day, and Scott Shapper

Search and Discovery.com

... introduce significant time distortions that are not adequately corrected with typical NMO velocities. Gathers should be examined for evidence of anisotropy...

2014

The Role of Regional Seismic Surveys in the Exploration of the North West Shelf

J. Ostby, C. Johnston

Petroleum Exploration Society of Australia (PESA)

...'). The result is best illustrated on combined velocity analyses (Figs 3-6), showing normal-moveout (NMO) corrected gathers, constant velocity stacks...

1994

Seismic Lithology (AVO) Interpretation at the Badak and Nilam Fields in the Sanga Sanga Block, Kalimantan

William C. Ade, Ian T. McMahon, Wahyudin Suwarlan

Indonesian Petroleum Association

... by incorporating the study of well logs, seismic sections, NMO corrected gathers, AVO graphs and theoretical models. Chiburis, E.F. 1987. Studies...

1988

Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data

A. A. Tabakov, V.N.Ferentsi, H. Gravini

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... dzdt t ( h ) −δ h −∆ which is a measure of presence on the given depth of reflector with dip ϕ and azimuth θ . Estimation K (h) is implemented...

2006

Qualitative and Quantitative Monitoring of Seismic Quality During Data-Processing for Future Seismic Reservoir Characterization Studies (Sisi-Nubi Field, Indonesia)

Rangga A. Brahmantio, Mikhail Baturin, Florent Bertini, Jean-Marie Jourdan

Indonesian Petroleum Association

.... Faults are seen more clearly, even before the reprocessing is completely finished. The reprocessing succeeded in enhancing reflector continuity under...

2011

Integrated Workflow for Fracture Characterization ; From Well Bore Analysis, Post-Stack Geometrical Attributes and Pre-Stack Azimuthal Inversion; Case Study for Fractured Volcanic Reservoir Analysis in Jatibarang Field, North West Java Basin

Aji Rahmat Ginanjar, Andreas Wasi Kuncoro, Muhammad Taslim, Tri Sunarno Irianto, Arrie Kurniawan, Oddy Pranidhana

Indonesian Petroleum Association

... seismic interpretation. Dip and Azimuth attributes define a local reflector surface that can be used to detect discontinuities which then can be used...

2017

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