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The AAPG/Datapages Combined Publications Database

Showing 499 Results. Searched 200,293 documents.

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Seismic Profile Through Patrick Draw-Table Rock Area, East Flank Rock Springs Uplift, Wyoming

Robert T. Ryder, Myung W. Lee, Warren F. Agena, Robert C. Anderson

Wyoming Geological Association

... a symmetrical 80-Hz Ricker wavelet. Stratigraphic units contributing to the major reflection horizons are identified. The reflection coefficient (Rc...

1989

Three-dimensional Seismic Inversion and Geostatistical Reservoir Modeling of the Rotliegend Gas Field

R. K. Shrestha, M. Boeckmann, S. Faruqi, M.-K. Wang

AAPG Special Volumes

... and convolving them with a zero-phase 30-Hz Ricker wavelet having amplitude and frequency characteristics similar to the composite wavelet. The synthetic...

2006

Low Frequency Shadow Zone Analysis Based on CWT Spectral Decomposition: Case Study of South Sumatra Basin

Abdul Haris, I Nengah Suabdi, Erwinsyah, Adriansyah, Abdullah Nurhasan, Ahsanul Khair, Ian A. Kainama

Indonesian Petroleum Association

...-frequency map for non-stationary signals is the continuous-wavelet transform (CWT). It produces a time-frequency map in which the amplitudes...

2008

A strategy for acoustic impedance direct inversion in depth domain

Ruiqian Cai, Chengyu Sun, Shizhong Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... is Ricker wavelet with a dominant frequency of 20 Hz. The reference synthetic seismogram can be obtained by the following steps. Firstly, we derive...

2022

Feasibility Study Methodology for Fracture Analysis Studies Using Seismic Azimuthal Amplitude Variation: Application in Southern Mexico

Alexis Ferrer Balas, Nahum Campos, Jesus Garcia Hernandez

GCAGS Transactions

... are tested: the wavelet with a 12 Hz peak (Fig. 6A) corresponding to the current seismic, and a Ricker modeled wavelet with its peak at 20 Hz (Fig. 6B...

2011

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... the overburden layer (overburden effect). Notice the amplification of frequencies other than the dominant frequency of the source wavelet (ricker wavelet...

2013

ABSTRACT: Quantitative Integration of 4D Seismic for Field Development; #90007 (2002)

Garnham, Gail Riekie, Malu Jensen, Liz Pointing

Search and Discovery.com

... seismic convolution model of Nelson using a Ricker 30 Hz wavelet, with original OWC in light blue, Top Forties in pink and Top Sele in dark green. OWC...

Unknown

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... the overburden layer (overburden effect). Notice the amplification of frequencies other than the dominant frequency of the source wavelet (ricker wavelet...

2013

Abstracts: Application of Fractional Fourier Transform in Cepstrum Analysis; #90173 (2015)

K. H. Miah, R. H. Herrera, M. van der Baan, and M. D. Sacchi

Search and Discovery.com

... Example of Fractional-Cepstrum (FC) A true wavelet is generated by superposition of two Ricker wavelets of different frequencies and phase rotations...

2015

ABSTRACT: Examples of Enhanced Spectral Processing in Direct Hydrocarbon Detection; #90007 (2002)

Sun, Shengjie, John P. Castagna, Robert W. Siegfried

Search and Discovery.com

... trace (Figure 1.a). As shown in Figure 1.a, the first event is created by adding a positive Ricker wavelet of 40 Hz at sample No. n=16. The second...

Unknown

Decoupled approximation of qP- and qSV-wave in attenuated TI media

Rong Huang, Zhiliang Wang, Guojie Song

International Meeting for Applied Geoscience and Energy (IMAGE)

... in simulations, the time step is 1ms, the spatial step is 12.5m, and a Ricker wavelet with the frequency of 30Hz is placed in the model’s center as the source...

2023

Bi-directional LSTM-based non-causal deconvolution

G. Roncoroni, I. Deiana, E. Forte, M. Pipan

International Meeting for Applied Geoscience and Energy (IMAGE)

...ms a deconvolution comparable to the RCD case, obtaining spikes at the center lobe of the Ricker wavelet in the reflections. Both algorithms preser...

2024

XI. Bibliography

Norman S. Neidell

AAPG Special Volumes

..." Geophysics, V. 20, No. 3, p. 516-538, 1955. Ricker (N.), "Wavelet contraction, wavelet expansion and the control of seismic resolution" Geophysics, V. 18...

1979

Frequency-dependent seismic-stratigraphic and facies interpretation

Hongliu Zeng

AAPG Bulletin

... tuning and frequency tuning are equivalent. For a certain wavelet (e.g., 20 ms for a 25-Hz Ricker wavelet; Figure 1A), tuning thickness...

2013

Seismic Expression of the Versippi Lodgepole Field, Stark County, North Dakota

Jeffrey C. Sprain

Rocky Mountain Association of Geologists

... facies were used to build the geologic model. The seismic response of a 25 Hz Ricker wavelet convolved with this model (Fig. 5A) shows an expected time...

1997

Abstract: Reflection-based Traveltime Inversion Using Segment Dynamic Image Warping; #91204 (2023)

Lu Liu

Search and Discovery.com

... from the expected realistic ones. 400 shot gather are uniformly simulated with a 16 Hz Ricker wavelet as source and one-way wave equation as engine. Each...

2023

AVO and Impedance Response of Perdices Miocene Sands, Lower Magdalena Valley Basin.

Oscar Moreno, Loz Darmon, Fernando Cerda, Anubrati Mukherjee

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., namely using a 30 Hz, 45 Hz and 75 Hz Ricker wavelet, were also generated. AVO and impedance response from the models were compared to data from seismic...

2008

Finite Difference Modeling: Part I: Become Expert in Five Minutes

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... in Part II of the series. The Wave Equation The laws of physics are generally written down as differential equations, or relations involving rates...

2018

Aspects of Seismic Resolution: Chapter 1

R. E. Sheriff

AAPG Special Volumes

.... Another important aspect of resolvability involves the wavelet bandwidth. Most model studies have used Ricker or similar zero-phase wavelets which do...

1985

Biogenic Gas Reservoir Distribution Analysis Using AI Inversion and Seismic Attributes in The Nias Basin, North Sumatra

Nurul Azizah Haris, Ninda Saphira Mustafa, Fathkhurozak Yunanda Rifai, Shaska R. Zulivandama, Sabrianto Aswad

Indonesian Petroleum Association

... and a Ricker wavelet. Wavelets that have the best correlation value will be convolved with the reflection value of the rock layer to produce...

2020

3D seismic facies clustering through spectral decomposition using unsupervised ML

Orkhan Mammadov, Ilkin Karimli, Konstantin Matrosov, Ruslan Malikov, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... to a Ricker wavelet with a dominant frequency denoted as "f" (see Equation 2) 𝜓(𝑡) = (1 − 2𝜋 2 𝑓 2 𝑡 2 )𝑒 −𝜋 2 𝑓2 𝑡 2 (2) Equations 1-2...

2024

Relative Impedance Inversion of Seismic Traces by Means of Complex Trace Attributes (CTA Inversion) … 40 Years On!, #42179 (2018).

Kurt Grubbe, Sean McQuaid

Search and Discovery.com

... for a simple wedge. T denotes dominant period of a zero-phase wavelet (Ricker 20Hz). (Altered from: Robertson and Fisher, 1988) o Degrees The chart...

2018

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