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The AAPG/Datapages Combined Publications Database

Showing 16,295 Results. Searched 189,922 documents.

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Abstract: Investigation of Seismic Imaging Capabilities for Small, Shallow Carbonate-Hosted Massive Sulphide Deposits; #90187 (2014)

Laura Quigley and Bernd Milkereit

Search and Discovery.com

... small trace spacing (4-5m) is needed so that spatial aliasing of shear and surface waves is avoided. With a seismic source frequency centered at 75Hz...

2014

Abstract: Multi-component or Vector Dip Filtering Using the S-transform; #90187 (2014)

Kristof De Meersman and Majda Mihoub

Search and Discovery.com

... in a way that handles irregular spatially sampled data as well as non-stationarity in time and frequency. The result is a method to estimate...

2014

Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)

Sergey Fomel

Search and Discovery.com

...-frequency decomposition over a set of regularly sampled frequencies (Liu and Fomel, 2012). When the input signal is fitted to shifted versions...

2014

Shipboard Processing and Interpretation

D.M. Angstadt

Geological Society of Malaysia (GSM)

... is used to tailor the processing flow to the data and design correct filters based on the frequency characteristics of the recorded signal, data...

1992

Broadband Seismic Technology and Beyond: PART X: IsoMetrix … Isometric Sampling

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... of the limitations is the effect called aliasing. Once more, we step back to basics. An example of aliasing can be seen when watching wagon wheels in old Westerns...

2014

Optimization of Seismic Acquisition Design Using Ocean Bottom Nodes at 'MHS' Field

M Hanif Syamri, Ruhul Firdaus, Syamsurijal Rasimeng, Agung A. Susanto

Indonesian Petroleum Association

... frequency unliasing, tuning thickness, aperture migration. This study makes a comparison of geometry survey orthogonal-1, orthogonal-2, orthogonal-3...

2019

High Performance Seismic Data Migration for High Resolution Interpretation

C. N. Chernoff

Indonesian Petroleum Association

... properly. The trace spacing must be fine enough to avoid aliasing and algorithm shortcomings. The frequency bandwidth should be as broad as the noise versus...

1983

Evaluation of the Effectiveness of Using Gravity and Magnetic Data to Define 3-D Seismic Survey Areas for Fault Related Hydrothermal Dolomite Reservoir Identification; #40711 (2011)

Alan W. Hinks, Robert L. Schulz, Eric R. Johnson

Search and Discovery.com

... structures. • Very high frequency anomalies are noise. • Interested in anomalies in between. • Use simple processing. Test “robustness” of anomaly...

2011

Interpolation Using Higher Dimensions: A Case Study ON KE2 Three-Dimensional Transition Zone Seismic Survey, Madura Field, Indonesia

Cecep Sutisna, Frans Langitan, Vishal Kumar, Keat Huat Teng, Pongga Wardaya

Indonesian Petroleum Association

... dimensions can also be represented by inline, crossline, offset, azimuth, and frequency. For narrow azimuth data, the dimension reduces to four...

2015

Can Sparse OBN Equal Savings and Data Quality?

Yannick Cobo, Rodrigo Felicio, Carlos Calderon, Paul Farmer, ION

GEO ExPro Magazine

... broader frequency spectra, longer offsets and richer azimuthal coverage. However, these qualities usually come with a higher price. One way to decrease...

2021

Improved Understanding and Interpretability Beneath the Complex Accretionary Section in West Timor, Indonesia, Via Marine Broadband Seismic and Beam Depth Migration

Mazin Farouki, Felice D'Alterio, Erika Gentile

Indonesian Petroleum Association

... the receiver ghost and associated ghost frequency notches via wavefield separation of the recorded data into its component up-going and down-going wavefields...

2012

Study of the Seismic Attenuation Generated by the Mud Layer in Lake Maracaibo, Venezuela

J. Perez, E. Andara, B. Malave

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... to observe the ambient noise, industrial noise, aliasing and low frequency in almost all the seismic sections. The most important feature observed...

2006

Utilizing Seismic in Exploring for Subtle Traps

Kevin Werth, Patrick Bygott, Edward Teyland

PTTC

...,. frequency, aIJd other geophysical measurements are probably indicative of changes in reservoir characteristics and not designirregularities. The final...

2003

Reading Between the Lines

Steve Harries

GEO ExPro Magazine

... developments in seismic sources and sensors have improved the frequency bandwidth that can be input to the subsurface and subsequently recorded back...

2012

Abstracts: Prestack Interpolation of a Sparsely Acquired and Heavily Structured 3D Land Data Set; #90173 (2015)

Dan Negut, Dave Ganley, Muyi Kola-Ojo, Dennis Quinn, Juefu Wang, Angela Truong, and David Emery

Search and Discovery.com

... properties of coherence in the frequency-wavenumber domain, where “wavenumber” is understood to comprise multiple spatial dimensions. At each temporal...

2015

Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)

Nasser Kazemi

Search and Discovery.com

... aperture of the data, missing traces, aliasing, finite number of scanned ray parameter, noise and statics are the major sources of artifacts. This fact...

2015

Microtremor Studies in Roosevelt and Beowawe Geothermal Areas

Alfred L. Liaw, Wayne Suyenega

Circum Pacific Council Publications

... state-of-the-art seismic array data acquisition and frequency-wavenumber processing techniques. T h e purpose of our study is to investigate...

1982

Field Technique Design for Seismic Reflection Exploration

L. R. Denham

Dallas Geological Society

... filter, geophone frequency, record length, geophone array, and spread type. Traditionally, these parameters have been constrained by hardware (e.g....

1982

Optimised 3D Land Geophysical Survey Design - A Case Study

P. van Baaren

Papua New Guinea (PNG) Petroleum Convention Proceedings

... the maximum trace spacing which will not alias in migration, V the velocity (interval at the target or average velocity), fm the ax maximum frequency...

2000

Higher Trace Density Recording for Foothills 3D Surveys

R. Malcolm Lansley

Search and Discovery.com

... density recording are two-fold: first, finer spatial sampling (i.e. smaller bin size) that reduces the liklihood of aliasing either steeply dipping...

Unknown

Higher Trace Density Recording for Foothills 3D Surveys

R. Malcolm Lansley

Search and Discovery.com

... density recording are two-fold: first, finer spatial sampling (i.e. smaller bin size) that reduces the liklihood of aliasing either steeply dipping...

Unknown

Extending the Resolution of Seismic Reflection Exploration

L. R. Denham

Pacific Section of AAPG

...–such as wavelet processing and attribute analysis– have made it possible for us to use amplitude, phase, velocity, and frequency information...

1980

Delineating Fractures from Seismic Attributes; #110124 (2010)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... • Obstacles such as lakes, villages, or platforms • Currents and tides Problems due to processing • Incorrect velocities • Migration operator aliasing...

2010

Enhancing Pre-Stack Seismic Inversion Using Neural Networks for Clastic Reservoir Characterization … Simian Field, Offshore Nile Delta, Egypt; #20413 (2018)

Wael Said, Islam A. Mohamed, Ahmed Ali

Search and Discovery.com

..., and filtering the log data to the seismic frequency range (high pass 120 Hz and high cut 130 Hz) so that aliasing is avoided when down-sampling log data...

2018

Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field

C. R. Willingham, A. S. Wylie Jr., D. J. Underwood

Pacific Section of AAPG

... of the spacing between the groups. To retain the effectiveness and prevent aliasing of returns from dipping structure, the arrays, in these areas, were...

2001

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