Design of the Acoustic Zoom Method for Non-Specular Backscatter Imaging of the Eagle Ford Formation, #41495 (2014).

J. Guigne, S. Azad, C. Clements, A. Gogacz, W. Hunt, A. Pant, J. Stacey

Search and Discovery.com

... Requirements Spatial Response Ambient Noise Reduction The source energy was injected using a modified vibroseis truck. Five vibroseis locations were...

Aspects of Seismic Resolution: Chapter 1

R. E. Sheriff

AAPG Special Volumes

... considerations. However, on migrated sections other factors become important, such as noise on the unmigrated section, spatial aliasing, migration aperture...

Beam Migration for Imaging of Complex Structures

Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki

Indonesian Petroleum Association

... wavelets, from 100-200 msecs. in time duration, within local surface spatial superbins each being centered on a uniform Cartesian grid of CDP xline...

Application of Robust Noise Reduction on a Land 3D Seismic Data

Agus Abdullah, Jesse Shaw

Indonesian Petroleum Association

... are the horizontal wavenumbers in the xc and yc directions. The subscript j denotes the j-th ~ spatial window. The taper function ω j has nonzero values...

Sensitivities, Limitations, and Error Inherent in Resistivity-tool-response Modeling - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2

Hezhu Yin

AAPG Special Volumes

... in spatial frequency resulting from the discrete-sampling process. Aliasing will occur when there are fewer than two samples per cycle; hence, an input...

Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)

Mostafa Naghizadeh and Kristopher A. Innanen

Search and Discovery.com

... the fast generalized Fourier transform FGFT to identify the space-wavenumber evolution of nonstationary spatial signals at each temporal frequency...

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

... an optimal set of spatial Fourier coefficients that at once reconstruct the existing (i.e., sparsely acquired) input traces and also exhibit certain...

Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

... data. In order to image these steep shallow events on the flank of the structure, the ideal bin size required to avoid spatial aliasing, assuming...

Three-Dimensional Seismic Method: Part 7. Geophysical Methods

Oz Yilmaz

AAPG Special Volumes

... pass of migration, the data sometimes need to be trace interpolated along the cross-line direction to avoid spatial aliasing. 3-D VERSUS 2-D...

Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)

Peter Cary and Changjun Zhang

Search and Discovery.com

... roll but they can have limited success because of irregular trace spacing and data aliasing. They also can generate artifacts due to spatial impulse...

Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)

Peter Cary and Changjun Zhang

Search and Discovery.com

... roll but they can have limited success because of irregular trace spacing and data aliasing. They also can generate artifacts due to spatial impulse...

Poisson binomial-based random undersampling scheme for near-surface compressive sensing

Sayan Mukherjee, Yunyue Elita

International Meeting for Applied Geoscience and Energy (IMAGE)

... with equal probability. The jittered uniform and Bernoulli distributionbased sampling methods diminish the randomness that may result into spatial aliasing...

Robust reconstruction via orthogonal matching pursuit with Fourier operators

Ji Li, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... are often poor due to spatial aliasing. Second, separating the signal from noise is hard when one works with one frequency slice at a time. This paper...

Nonuniform dispersed source arrays for broadband seismic acquisition

Joaqun A. Acedo, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... components covers the entire temporal and spatial bandwidth requirements. Given this configuration, each regularly sampled source unit needs different Nyquist...

Reading Between the Lines

Steve Harries

GEO ExPro Magazine

... at the surface, achieving truly 3D high-resolution images of complex structures also requires adequate spatial sampling in both the inline and crossline...

Another Look at the Separation of P- and S-Waves

Jun-Wei Huang

Search and Discovery.com

...-time domain. In VSP geometry, the required neighboring wave field for spatial derivatives is approximated by the wave field generated by shifted...

Another Look at the Separation of P- and S-Waves

Jun-Wei Huang

Search and Discovery.com

...-time domain. In VSP geometry, the required neighboring wave field for spatial derivatives is approximated by the wave field generated by shifted...

Abstract: A Low Rank Based Seismic Data Interpolation Via Frequency-Patches Transform and Low Rank Space Projection; #90224 (2015)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

.... The interpolation is carried out in the frequency spatial domain where each frequency slice is first transferred to the frequency-patches domain. A nice...

A successful story of working with towed streamer and ocean-bottom node data on interpolation and image enhancement

Heather Yao, Amr Elsabaa, Nathaniel Cockrell, Dawit Desta, Ruoyu Gu, Christina Tapia, Nigel Hicks, Lauren Peschier

International Meeting for Applied Geoscience and Energy (IMAGE)

... ocean-bottom node (OBN) acquisitions, primarily because node spatial sampling is typically sparser than channel spacing within towed streamers. However...

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

... of parameter acquisition design is done by calculation methods, such as bin size (spatial sampling), record length, far offset, minimum near offset, maximum...

Fundamental 3-D Seismic Survey Design

Stuart Wright

Rocky Mountain Association of Geologists

.... As the dips get greater, the cells need to be smaller in order to avoid spatial aliasing. More precise relationships will be discussed later in the design...

Maximising the value of 2D hard rock seismic acquisition at Escondida Porphyry Copper Mine

Heather Schijns, Gabriel Madero

Petroleum Exploration Society of Australia (PESA)

... dips without compromising station spacing requirements for spatial aliasing, and 3) lack of historic surveys and/or petrophysical information...

The Use of Modern 3D Seismic Data Processing Techniques, 5D Interpolation, and Anisotropic PSTM to Improve Existing 3D Data in South Louisiana Data—Pulling the Scales from our Eyes; New Truth from Existing Datasets

John Asma, John Stevens, Sukhdev Hyare, Dave Spaulding

GCAGS Transactions

... stacking chart. While the vagaries of this flat depiction of three dimensions eluded some, it was a necessary tool of the time for defining the spatial...

Vertical and Lateral Seismic Resolution and Attenuation: Part 7. Geophysical Methods

R. E. Sheriff

AAPG Special Volumes

... of the most important limitations results from the spatial sampling because of the geophone group interval. At least two samples per wavelength...

Why 3D Seismic Missed a Giant Field in the Eastern Venezuela Thrust Belt; Postmortem of a Late Discovery

Search and Discovery.com

... direction. This caused spatial aliasing and lack of illumination in the other directions, making seismic processing and interpretation quite challenging...