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The AAPG/Datapages Combined Publications Database

Showing 17,461 Results. Searched 195,364 documents.

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Abstract: Event-directed Spectrum Extrapolation for Upsampling Seismic Traces; #90172 (2014)

Zhengshong Yao, Elvis Floreani

Search and Discovery.com

... frequency portion spectrum of the original data has a similar pattern to that of designed data. Therefore, weighting function can be build...

2014

Comparison of EMD and S-Transform Spectral Decomposition for Characterizing Hydrocarbon Reservoir: Case Study of East Java Basin

Abdul Haris, A. M. Ustad, Didik Ardiyanto, Gadang G. Wihardy, Budiyono, Tri Bowo, Murti Widyawan

Indonesian Petroleum Association

...-frequency spectrum such as Short Time Fourier Transform (STFT), Continues Wavelet Transform (CWT) and Matching Pursuit Decomposition (MPD). However, all...

2011

Thickness Estimation Using Gradient of Spectral Amplitudes from Spectral Decomposition

Tri Wuri Asri Sulistyoati, Lita Novitasari, Sonny Winardhi

Indonesian Petroleum Association

... is transformed to the frequency domain using the Discrete Fourier Transform (DFT) to produce amplitude and phase spectra. The phase spectrum contains...

2012

Abstract: Seismic Denoising by Time-Frequency Reassignment; #90174 (2014)

Li Han, David Bonar, and Mauricio Sacchi

Search and Discovery.com

... distribution. A reassigned timefrequency spectrum can better localize signals because the process concentrates the time-frequency energy of each...

2014

Abstracts: Q Determination, Corner Frequency and Spectral Characteristics of Microseismicity Induced by Hydraulic Fracturing; #90173 (2015)

David W. Eaton

Search and Discovery.com

... frequency can be determined. The classic Brune model is used here to predict the shape of the source spectrum and to provide scaling relationships...

2015

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

.... The identification of various subsurface properties can be carried out based on the time frequency spectrum. The subsurface condition cause for the frequency...

2008

ABSTRACT: Direct Hydrocarbon Indication Using Instantaneous Spectral Analysis; #90017 (2003)

John Castagna

Search and Discovery.com

... (ISA) is a continuous time-frequency analysis technique that provides a frequency spectrum for each time sample of a seismic trace. ISA achieves both...

2003

Abstract: Fourier Domain Regularization 5D and More; #90174 (2014)

V. Khatchatrian

Search and Discovery.com

... into the frequency domain and then into the multi-dimensional wave number domain. This final spectrum is a result of the convolution of the full data spectrum...

2014

Abstract: Seismic -- Stratigraphic Mapping Of Gulf Coast Stratigraphic Traps

John A Ward

GCAGS Transactions

.... Analysis of bandpass filtered sonic logs provides a useful technique for determining the portion of the frequency spectrum that carries the basic...

1980

Seismic-Stratigraphic Mapping of Gulf Coast Stratigraphic Traps: ABSTRACT

John A. Ward

AAPG Bulletin

.... Analysis of band-pass filtered sonic logs provides a useful technique for determining the portion of the frequency spectrum that carries the basic...

1980

Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment

Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria

Indonesian Petroleum Association

... spectrum in the dominant frequency area owned by the spectrum of the wavelet operator. A bandpass filter reduces data outside the band signal to perform...

2022

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

Sina Esmaeili and Gary Frank

Search and Discovery.com

... to be random, therefore its amplitude spectrum is assumed to be white. On the other hand, by writing equation 2 in frequency domain, S ( f )  R( f )W ( f...

2015

Spectral Recomposition in Stratigraphic Interpretation, #41376 (2014)

Yihua Cai, Sergey Fome, Hongliu Zeng

Search and Discovery.com

... and whitened spectrum in a long window; 2. In short window analysis, local geology filters wavelet and overprints it in frequency domain.  Some...

2014

Abstract: Broadband Data: How Changes in Seismic Techniques Have Changed Geologic Interpretation; #90310 (2017)

David J. Monk, Marnix Vermaas

Search and Discovery.com

... at the low frequency end of the spectrum which is more important for successful inversion and interpretation. “Broadband” data today tends to suggest...

2017

Microseismic Data Analysis Using Matlab 2010 for the Determination of Hydrocarbon Presence in the Field LCYŽ Ombilin Basin

Lucy W. Sari, Moh. Sarkowi, Suharno, Rahmat C. Wibowo

Indonesian Petroleum Association

... hydrocarbons. Above the oil reservoir, the natural earth noise spectrum increased sharply at a frequency of 2 - 6 Hz. This phenomenon has been confirmed...

2013

Study on Characteristic Variability of Weak Signal in High Density Seismic Acquisition; #41351 (2014)

Wujin Chen and Anchu Wu

Search and Discovery.com

... dominant frequency is 50Hz. It shows that near surface absorption degrades the resolution to interfaces. Frequency analysis The amplitude spectrum...

2014

Application of Spectral Decomposition and RGB Blending for Mapping the Distribution of Ubadari Sandstone in Kasuri Block

Leonard Lisapaly, Anne Queentina Tyas Primasty

Indonesian Petroleum Association

... amplitude spectrum of this kind of event will have a notch frequency, and the notch frequency then represents the reservoir with temporal thickness equals...

2018

Some Seismic Instantaneous Bandwidth Attribute Applications; #42515 (2020)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... decreases the higher frequency components of the spectrum. For more ordered and less commonly encountered heterogeneities such as sabkhas, coal...

2020

Fractal Structure of Stylolites

Carl N. Drummond, Damon N. Sexton

Journal of Sedimentary Research (SEPM)

... the spectrum of a path of End_Page 8-------------------------- a Brownian motion is found to decrease as a function of frequency. That is, Brownian...

1998

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