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The AAPG/Datapages Combined Publications Database

Showing 2,336 Results. Searched 200,685 documents.

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EXTENDED ABSTRACT: Conforming and Non-Conforming Sands - An Organizing Framework for Seismic Rock Properties

Young, Roger A. and LoPiccolo, Robert D.

GCAGS Transactions

... with the overlying shale or the direction (positive or negative) of change in impedance contrast reflectivity with increasing offset. Previous...

2004

I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... the change in velocity is from 2,000 to 4,000 m/sec (as at the top of the high-velocity wedge) with no change in density, we have a reflectivity of one...

1981

Abstract: P-wave AVAz Modeling: A Haynesville Case Study; #90224 (2015)

Jon Downton

Search and Discovery.com

... parameters for each layer, often based on well log information. For AVO modeling the reflectivity is calculated at a series of different source-receiver...

2015

Seismic Inversion for Hydrocarbon Screening: Mahakam Case Study

Hilfan Khairy, Didiek B. Prabowo, Cepi Adam

Indonesian Petroleum Association

... in Figure-3. The synthesis of reflectivity versus angle in Mahakam shallow has shown an encouraging trend from the delta plain to the shallow marine...

2018

Seismic Modelling in 3D for Migration Testing

Search and Discovery.com

... function. Thus we explicitly decouple the reflectivity from the velocity of wave propagation, essentially invoking the first-order Born assumption...

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

... of the geology and the source excitation. Separating the source wavelet from the seismic trace is the key in predicting subsurface reflectivity. Since...

2015

Seismic Qualitative and Quantitative Analysis for Reservoir Characterization of Globigerina BH Gas Field, North East Java Basin.

Indra Sumantri, Okky Yuditya Pahlevi, Hendra Himawan, Vickry Rowi, Kian Han

Indonesian Petroleum Association

... calculates coefficient reflection for 0o angle of incident, and with the utilization of AVO gradient, it can calculate the angle-dependent reflectivity...

2021

Three-Dimensional Seismic Volume Visualization of Carbonate Reservoirs and Structures

Jose Luis Masaferro, Ruth Bourne, Jean Claude Jauffred

AAPG Special Volumes

... the conventional horizon-based interpretation. We have applied various 3-D image-processing techniques to produce filtered seismic reflectivity data...

2004

Seismic super resolution method for enhancing stratigraphic interpretation

Chengbo Li, Qingrong Zhu, Baishali Roy

International Meeting for Applied Geoscience and Energy (IMAGE)

... on impedance. We here propose a seismic super resolution method which simultaneously regularizes the reflectivity model and relative impedance. The optimization...

2022

High-frequency FWI velocity model building for hydrocarbon delineation

Lianping Zhang, Souvik Sengupta, Chirag Parekh, Robert Eliott-Lockhart

International Meeting for Applied Geoscience and Energy (IMAGE)

... to be delineated and compensated for the absorption effect to further improve imaging. We also utilized pseudo reflectivity to validate the velocity model quality...

2022

Multiscale insights into the Mount Weld REE deposit from 2D and 3D active seismic survey data

Thomas Bell, Greg Turner, Ganesh Bhat, Brad Knell

International Meeting for Applied Geoscience and Energy (IMAGE)

... highlighted a zone of low seismic reflectivity extending 9km below Mt Weld deposit. We interpret this to represent the multi-phase carbonatite intrusive...

2023

Abstract: Nonlinear Seismic Wave Propagation in Heavy Oil; #90224 (2015)

Wubing Deng and Igor B. Morozov

Search and Discovery.com

... Wubing Deng and Igor B. Morozov University of Saskatchewan Summary The propagation, reflectivity, and attenuation of seismic waves in bitumen-rich rocks...

2015

Comparison of Seismic Reconvolution and Gabor Deconvolution in Improving Seismic Images to Detect Local Fluid Trapping

Madaniya Oktariena, Wahyu Triyoso

Indonesian Petroleum Association

... reflectivity. The smoother is a combined function of the seismic source signature and the attenuation function. Attenuation is one of the reasons that causes...

2016

New developments in using solar cells as remote sensors to gauge climate change

Nelson Veissid

Environmental Geosciences (DEG)

... can be represented byThe parameters Aij and Sij are the reflectivity and area of the elements with latitude j and longitude i, respectively...

2003

Current Workflows for Shale Gas Reservoir Characterization

Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... hybrid workflow entails the generation of curvature volumes as well as relative acoustic impedance from thin-bed reflectivity (Chopra et al., 2006...

2013

A Simple Guide to Seismic Horizon Interpretation

Gil Machado

GEO ExPro Magazine

... bright contacts (i.e. seismic reflectors), with high reflectivity. Mineralisations of various types are also often visible in seismic as bright...

2020

A Seismic Rock Properties Study of a Mesozoic Reservoir in Indonesia

Andi Alamsyah, Lantu, Sabrianto Aswad, Andi Darmawansyah

Indonesian Petroleum Association

... in the reflectivity domain that can be used to analyze hydrocarbon and lithologic anomalies. Additional analyses are frequently required. For example...

2013

Overcoming 3D seismic resolution issues in a turbiditic complex field U.S. Gulf of Mexico

Roberto Lotti, Alfonso Junio Marini, Maurizio Ferla, Valentina Zorgnotti, Antonio Corrao, Luca Bianchin, Riccardo Martin

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 2021). Additional steps were required to check reflectivity and relative acoustic impedance results, obtained without any well constraints. Blind tests...

2023

Convolution neural networks fault interpretation in the Brazilian presalt

Hugo Garcia, Edimar Perico, Ana Moliterno, Alexandre Kolisnyk, Michael Lowsby

International Meeting for Applied Geoscience and Energy (IMAGE)

... study. For the network’s results quality control, we used several methods: Frequency decomposition color blends - The reflectivity data is split...

2024

ABSTRACT: Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology; #90007 (2002)

Marcus L. Countiss

Search and Discovery.com

... with the math evolved for the decoding of encrypted messages. The algorithm works to decode the seismic “message” and extract the acoustic reflectivity series...

Unknown

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... attributes (intercept and gradient) obtained at these horizons matched the modeled response. S-impedance reflectivity was obtained from weighted...

2013

Abstract: AVO Crossplotting I: Processing and Calibration Considerations; #90171 (2013)

Heath Pelletier

Search and Discovery.com

... are considered, as discussed by Cambois (1998). Signal-tonoise ratio (S/N) issues tend to broaden the intercept and gradient (I/G) reflectivity points...

2013

Abstract: Impedance Joint Inversion of Surface and Borehole Seismic Data; #90187 (2014)

Danping Cao, Xingyao Yin, and Guochen Wu

Search and Discovery.com

..., r is the reflectivity sequences, and n is the additive noise vector. According to the Bayesian theorem, the likelihood function can be used...

2014

Shale Gas Reservoir Characterization Workflows, #80379 (2014)

Satinder Chopra, Ritesh Kumar Sharma, and Kurt J. Marfurt

Search and Discovery.com

... the generation of curvature volumes as well as relative acoustic impedance from thin-bed reflectivity (Chopra et al., 2006). Thin-bed reflectivity...

2014

Pre-drill Reservoir Evaluation Using Passive Seismic Imaging

Charles Sicking, Jan Vermilye, Ashley Yaner

Unconventional Resources Technology Conference (URTEC)

... noise in the field data is required for valid testing of the method because reflectivity noise and coherent surface wave noise dominate passive data...

2016

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