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The AAPG/Datapages Combined Publications Database

Showing 147 Results. Searched 200,293 documents.

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Abstract: Wavelet Estimation by Non-Linear Optimization of All-Pass Operators; #90211 (2015)

Somanath Misra and Mauricio Sacchi

Search and Discovery.com

... amplitude spectrum as that of the true mixed phase wavelet. Thus, deconvolving the trace with the minimum phase wavelet not only removes the wavelet...

2015

Abstracts: Impedance Inversion of Phase Corrected Data- A Case Study; #90173 (2015)

Somanath Misra and Satinder Chopra

Search and Discovery.com

... with minimum phase wavelet assumption leaves the data with spurious phase. The phase correction required to remove the spurious phase can be done by a simple...

2015

Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)

Rajesh Vayavur and Andrew. J. Calvert

Search and Discovery.com

... is 25m. A raw shot gather with minimum phase low-pass filter (0-0-15-20Hz) from the section is shown in Figure1. First arrivals are partly obscured...

2014

Abstract: Reflectivity Color Correction in Gabor Deconvolution; #90211 (2015)

Carlos Montana and Gary Margrave

Search and Discovery.com

... relies on the fulfillment of a set of assumptions on which the convolutional model is based: stationarity, minimum phase wavelet, white reflectivity...

2015

ABSTRACT: Seismic Wavelet Phase Estimate

Jiangbo Yu

Houston Geological Society Bulletin

... renders the minimum misfit is considered as the phase of the wavelet. By doing this, no assumption is needed for the amplitude distribution...

2012

Abstracts: Padé Approximation for Analyzing Multiple Reflections; #90173 (2015)

Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

... [email protected] Summary The paper considers rational Padé approximation of the z-transform function of a time-dependent minimum phase signal. We present...

2015

Abstract: Recovering Low Frequencies for Impedance Inversion by Frequency Domain Deconvolution; #90224 (2015)

Sina Esmaeili and Gary Frank

Search and Discovery.com

..., May 12-16, 2014 FIG. 3. Amplitude spectrum of white spectrum reflectivity (blue), seismic data (green) and a minimum phase wavelet (red...

2015

Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

...) is a random sequence with white spectrum, and 111. the wavelet wen) is minimum phase. The validity of these assumptions is critical in ensuring...

1994

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... from the estimated amplitude spectrum using minimum phase factorization techniques. Once amplitude and phase spectra of the wavelet are known, we can...

1980

3.4 Detached Sediments: 3.4.1 Decollement Tectonics (A-Subduction): Kemmerer Area, Lincoln County Wyoming

M. A. Norton

AAPG Special Volumes

... pattern with 57 L-10 geophones was used. The processing sequence included a time variant minimum phase inverse filter, predictive deconvolution...

1983

Abstract: Late Ordovician Pre-Glacial and Syn-Glacial Deposits from NW Saudi Arabia: Insights Into Facies Analysis, Depositional Models and Present-Day Analogues; #91204 (2023)

Homoud AlAnzi

Search and Discovery.com

... and ice minimum phase facies were also deposited in an unconfined glaciomarine outwash fan setting away from the retreating ice front. These glaciomarine...

2023

Abstract: Rigorous Demonstration of Sub-Wavelength Multiple Scattering Suppression Using Advanced Seismic Data Processing Workflows; #91204 (2023)

Marcin Dukalski, Chris Reinicke, Rob Hegge

Search and Discovery.com

... that the problem can be constrained by (1) energy conservation of the solutions and (2) using multi-dimensional band-limited minimum-phase reconstruction...

2023

Amplitude Mapping of Reservoirs in North Africa

Search and Discovery.com

... of the amplitude of these frequencies to a level that is beyond the minimum phase assumption for a relationship between frequency and phase...

2013

Abstract: Exploring Potential Applications of Gaussian Ball Filters in Sharpes Hollow Cavity Model; #90224 (2015)

Christopher C. Petten and Gary F. Margrave

Search and Discovery.com

... activation waveforms. We found that that a Ricker and a minimum phase wavelet produced the most reasonable results that might be expected from a real explosion...

2015

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

... with minimum-phase wavelets. By definition, a minimum-phase wavelet is the unique wavelet for a given amplitude spectrum which concentrates...

1989

Abstract: Variable Depth Streamer Acquisition: Enhancing Interpretation with Broadband Marine Seismic; #90174 (2014)

R. Soubaras, R. Dowle, and R. Sablon

Search and Discovery.com

... GeoConvention 2012, (Vision) May 14-18, 2012, Calgary, AB, Canada Robinson and Treitel (1964), given a trace d(t), we need to find a minimum phase...

2014

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... of notches in the amplitude spectrum of the ghosting operator, with rapid variation in the phase spectrum occurring in the vicinity of these notches...

2015

Discovery of the Cunda Gas Field, Bee Block, North Sumatra: An Integrated Geologic/Seismic Stratigraphic Case History

M. D. Burnaman, R. B. Helm, C. R. Beeman

Indonesian Petroleum Association

...-Section Minimum phase synthetic seismograms displayed in Figure 13 were made from edited sonic logs for the key wells shown in Figure 12. Interval...

1985

Wavelet Processing

Lee Lu

Indonesian Petroleum Association

... sequences or estimates. The conventional deconvolution method is adequate if the source wavelet is minimum phase and the desired signal to nearly white...

1978

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