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The AAPG/Datapages Combined Publications Database

Showing 2,335 Results. Searched 200,599 documents.

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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)

... basins with good to excellent seismic reflectivity, and when seismic surveys with modern parameters (long offset, short station spacing, enough...

2008

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)

... in the synthetic modelling based on the Kennett method (Kennett, 1983). We show the results of linear reflectivity based inversion and the results...

2022

Seismic signal considerations for fast reservoir characterization

Folkert Hindriks

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the subsurface. approximately -6 dB/octave (1/𝜔). For quantitative rock and fluid characterization, we often convert the seismic reflectivity...

2024

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

... character for the underlying reflectivity series in the data and a minimum phase nature for the waveform. In the face of such assumptions...

1979

Abstract: Correlation of P-P and P-S Data in Yinggehai Basin, South China Sea; #90171 (2013)

Jinfeng Ma, Le Gao, and Igor Morozov

Search and Discovery.com

... reflectivity can be written as follows, based on Aki and Richards’ (1980) simplification of Zoeppritz equation: R ps j = c j ln ( ρ j +1 β j +1 ) + d j...

2013

Abstract: Recent Advances in the Characterization of Unconventional Reservoirs with Wide-azimuth Seismic Data; #90187 (2014)

Ran Bachrach, Sagnik Dasgupta, Colin Sayers, Josimar Silva, and Stefano Volterrani

Search and Discovery.com

... (2009) was further extended using the Psencik and Martins (2001) reflectivity approximation for orthotropic media. This approximation is more accurate...

2014

Delineating Fractures from Seismic Attributes; #110124 (2010)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... time migrated Amplitude data 0 - Relative acoustic impedance derived from thin-bed reflectivity Relative acoustic impedance derived from thin-bed...

2010

From Inversion Results to Reservoir Properties, #40869 (2012)

M. Kemper, N. Huntbatch

Search and Discovery.com

.... Green = oil sands Blue = brine sands Pink = shales EEI Background  Extended elastic impedance (or reflectivity) is a concept introduced...

2012

Compressional and Shear Wave Seismic Studies in the Williston Basin of Central Saskatchewan

Bradley J. Carr, Zoltan Hajnal

Williston Basin Symposium

... of consistent reflectivity near the center of the feature, with the surrounding lithologies dipping inward to the core of the structure...

1995

Palaeogeothermometry of the Cooper and Eromanga Basins, South Australia

N. J. Russell, Y. Bone

Petroleum Exploration Society of Australia (PESA)

..., South Australia. N J. Russell1 and Y. Bone2 Abstract The relationship between vttnrute reflectivity, fluid inclusion homogenization temperature...

1989

Memory-efficient frequency-domain least-squares RTM using low-rank Greens functions via randomized SVD

Daniel E. Revelo, Reynam C. Pestana, Diego F. Barrera, Rodrigo S. Santos

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflectivity model, provided that Green’s function can be stored in memory. The Green’s functions employed to compute the gradient and Born-modeled...

2024

Morphology of Ocean Basin Seaward of Northwest Africa: Canary Islands to Monrovia, Liberia

Julius Egloff

AAPG Bulletin

... zones. Bottom reflectivity characteristics to the 3.5 kHz echo sounder vary between physiographic provinces but remain comparatively uniform across...

1972

Analysis of the impact of demigration on traveltime-based reflection full-waveform inversion

Hong Liang, Houzhu (James) Zhang, Hongwei Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... (or demigration) using a reflectivity model and a background velocity model. However, as pointed by Wang et al., (2018), during the demigration process...

2022

3D Seismic Visualization Using Multiple Volume Data Sets

Antony J. Marsh, Andy Furniss, Gerald Kidd

Indonesian Petroleum Association

... combinations include reflectivity and acoustic impedance, near and far offset stack volumes, and reflectivity and edge detection. In this example, we use two AVO...

2000

Implementation aspects of elastic FWI and its application to sparse OBN surveys

Cosmin Macesanu, Faqi Liu, Yi Huang, Hao Hu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

... gradient of the field) and a source term, proportional to the derivative of the model density/buoyancy (model reflectivity). The kinematic term implies...

2024

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

Somanath Misra and Mauricio Sacchi

Search and Discovery.com

... the third order cumulants, the fourth order cumulants do not vanish when the reflectivity series is symmetric (Walden and Hosken, 1986). Tugnait (1987...

2015

Synthetic Seismic Validation of Reservoir Models of the Carbonate Gas Fields in Offshore Sarawak, Malaysia; #41087 (2012)

Alexander David Kayes

Search and Discovery.com

... Secondary Variable 1 3 Seismic reflectivity (TWT) Seismic horizons (TWT) T -> Z Model framework (Depth) WELL LOGS Porosity Model (Depth) SHF...

2012

Modern Sedimentary Environments in Boston Harbor, Massachusetts

Harley J. Knebel, Richard R. Rendigs, Michael H. Bothner

Journal of Sedimentary Research (SEPM)

.... 1) Environments of erosion appear on the sonographs either as patterns with isolated strong reflections or as uniform patterns of strong reflectivity...

1991

Rock Physics and Reservoir Characteristic of a Calcitic-Dolomitic Sandstone Reservoir

H. Morris, B. Hardy, E. Efthymiou, T. Kearney

Indonesian Petroleum Association

... increases the reflectivity at all angles whereas a change in porosity has its greatest impact on the near angle reflectivities. At the far angles...

2011

From Chaos to Caves … An Evolution of Seismic Karst Interpretation at the Vorwata Field

Riangguna Eloni, M.R. Husni Sahidu, Ilham Panggeleng, Christopher S. Birt, Ted Manning

Indonesian Petroleum Association

... to the previous towed-streamer isotropic Pre-STM dataset. Further value can be extracted by transforming these new seismic reflectivity volumes...

2016

Appalachian Area: Regional Studies

Parker D. Trask, H. Whitman Patnode

AAPG Special Volumes

.... Color: The sediments in the Appalachian region are slightly lighter than the average of all the sediments studied. The mean reflectivity is 33 compared...

1942

Seismic Avo Attributes and Machine Learning Technique to Characterize A Distributed Carbonate Build Up Deposit System in Salawati Basin Eastern Indonesia

Yudistira Effendi, Edi Suwandi Utoro, Sri Lestari, Lilik T. Hardanto

Indonesian Petroleum Association

... to give some outputs such as P-wave Impedance Reflectivity (Fatti's equation), S-wave Impedance Reflectivity (Fatti's equation), P-wave Velocity...

2022

Rock Physics and Reservoir Characterization of a Calcitic-Dolomitic Sandstone Reservoir; #41499 (2014)

H. Morris, E. Efthymiou, B. Hardy, T. Kearney

Search and Discovery.com

.... Additionally, the darker the colour (in both fluid scenarios) means higher the porosity. The gas-condensate fill increases the reflectivity at all angles...

2014

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

.... In this process, the primary reflections are modeled as linear functions of the subsurface reflectivity. The mathematically rigorous procedure...

2018

Rock-physics Models for Gas-hydrate Systems Associated with Unconsolidated Marine Sediments

Diana Sava, Bob Hardage

AAPG Special Volumes

... (S)-wave velocities, and to analyze compressional-wave (PP) and converted-shear-wave (PS) reflectivity at the base of hydrate stability zones. Elastic...

2009

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