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The AAPG/Datapages Combined Publications Database

Showing 5,187 Results. Searched 200,293 documents.

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Abstract: Seismic Source Wavelet Estimation and Sparse-spike Deconvolution; #90174 (2014)

Zhengsheng Yao and Mike Galbraith

Search and Discovery.com

... and usually involves a non-linear inverse problem. Such kind of inverse problems are generally ill-posed due to a band limited source wavelet...

2014

Wavelet Processing

Lee Lu

Indonesian Petroleum Association

... an optimum filter, f, to be applied to the data. The source wavelet can be derived by the inverse of the filter. Claebout's method emphasizes...

1978

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

... are attempting to design an inverse wavelet. Hence if we treat a spiking deconvolution operator as an inverse wavelet, then its inverse must in fact...

1979

Abstract: Two-stage Blind Deconvolution; #90187 (2014)

Mafijul Islam Bhuiyan and Mauricio D. Sacchi

Search and Discovery.com

.... However, the seismic source wavelet is unknown and therefore, it must be estimated from the data prior to deconvolution. In this paper, we examine...

2014

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... trace. They can be divided into two categories (deterministic and statistical) according to availability of the source wavelet. In the deterministic...

1980

DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the CWT domain, to maximize SNR while preserving data bandwidth. define the forward wavelet transform as W, the inverse wavelet transform W-1...

2022

Abstracts: Blind L1-norm Multichannel Deconvolution for Seismic Source Function Estimation; #90173 (2015)

Jaime Meléndez Martínez

Search and Discovery.com

... in alternating with single-channel reflectivity estimation, and multichannel wavelet estimation. The method is able to estimate the correct source...

2015

A new high-resolution seismic wavelet definition and vibroseis sweep signal design

Zhenbo Nie, Huazhong Wang, Shen Sheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... wavelet is generated, the vibroseis sweep signal can be designed accordingly. By using the designed sweep signal as the excitation source for vibroseis...

2024

Wave-equation based amplitude versus offset inversion in long time windows, with time-variant wavelets

Dries Gisolf, Peter R. Haffinger

International Meeting for Applied Geoscience and Energy (IMAGE)

... for short time windows, say less than 400 ms, a linear approach in terms of primaries only and a constant wavelet could have been sufficient, we find...

2022

Thin Layer Imaging by Wavelet Transform Enhancement

Randy Condronegoro, Woro Sutjiningsih, Herlan Setiadi, Khairul Ummah, Dythia Prayudhatama

Indonesian Petroleum Association

...Thin Layer Imaging by Wavelet Transform Enhancement Randy Condronegoro, Woro Sutjiningsih, Herlan Setiadi, Khairul Ummah, Dythia Prayudhatama...

2013

Application of Inverse-Q Filter and Deconvolution to Improve Seismic Data Quality in the Deep Section

Deddy F. Djanawir, Frans Langitan

Indonesian Petroleum Association

... the coherency of seismic traces and increased confidence in velocity analysis. Inverse Q also sharpened the seismic wavelet shape and made the seismic...

2004

Abstract: Modified Euclids Blind Deconvolution Via Sparsity Optimization on a Sphere; #90187 (2014)

Nasser Kazemi and Mauricio D. Sacchi

Search and Discovery.com

... of an unknown signal of interest and a source signature. In general, the unknown signal or image can be estimated via inverse methods when the source signature...

2014

AVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves; #41567 (2015)

Charles Ursenbach, Arnim Haase

Search and Discovery.com

... the reflection coefficient for a band-limited wavelet via an inverse Fourier transform, as has been carried out by Haase (2004). We have previously...

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

VIII. Conversion of Seismic Data to Log-Like Displays

Norman S. Neidell

AAPG Special Volumes

... noted a data comparison over a North Sea oil field in conventional and wavelet processed form (p. 20). Also, the wavelet processed data was tied...

1979

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

... currently-used de-multiple methods assume some kind of temporal separability between events, to either estimate the source wavelet or the multiple...

2023

Deriving Subsurface Insight from Seismic

Gregory Partyka

Indonesian Petroleum Association

... of the noise attenuation. It is important to work with a stable source wavelet. If the source wavelet characteristics vary temporally and /or spatially...

2015

A new way to enhance the resolution of surface seismic data

Qian Yu, Qing Zhou, Jiaguo Ma, Tao Yan, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... propagation, and the inverse of the wavelet (i.e. the inverse wavelet) is used as the deconvolution operator of the actual seismic record. However, due...

2022

Abstract: Monte Carlo Markov Chain Methods in Seismic Deconvolution; #90174 (2014)

Andres Medina and Mirko van der Baan

Search and Discovery.com

... of a source wavelet with the Earth’s reflectivity plus some noise. In a conventional deconvolution approach one thus estimates a linear deconvolution filter...

2014

Abstract: Short-time Wavelet Estimation in the Homomorphic Domain; #90174 (2014)

Roberto H. Herrera and Mirko van der Baan

Search and Discovery.com

... by an inverse Fourier transform. In addition, no assumption regarding the phase of the wavelet is made, nor is the reflectivity assumed white. Despite its...

2014

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

... [email protected] Summary Source wavelet estimation is the key in seismic signal processing for resolving subsurface structural properties. Homomorphic...

2015

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