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The AAPG/Datapages Combined Publications Database

Showing 25,998 Results. Searched 190,031 documents.

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Abstract: AVO Crossplots as an Aid to AVO Interpretation

Mark Sams

Geological Society of Malaysia (GSM)

... & Scientific Services Sdn. Bhd. Lot 3288 & 3289, Jalan Ayer Itam Kawasan Institusi, Bandar Baru Bangi 43000 Kajang Amplitude Variation with Offset (AVO...

1997

Seismic Modelling in 3D for Migration Testing

Search and Discovery.com

...: (a) The velocity variation (blue lines) and reflectors (grey lines) for the exhaustive model. (b) The reflectivity function for the reflector at 200m depth. Black...

2013

Anisotropic 3D Amplitude Variation with Azimuth (AVAZ) Methods to Detect Fracture-Prone Zones in Tight Gas Resource Plays, #41531 (2015).

Bill Goodway, John Varsek, Christian Abaco

Search and Discovery.com

... equation for P-wave reflectivity with incidence angle (Aki and Richards, 1980) and is based on a simple HTI model of vertically aligned fractures...

2015

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

Hammerfest Basin's Unexplored Potential

Erik Henriksen, Said Amiribesheli, Katherine G. Fitzpatrick

GEO ExPro Magazine

... can be identified on the seismic using AVA attributes (Figure 2). Analysis of the qualitative Extended Elastic Impedance attribute shows the presence...

2018

Poststack Processing Steps for Preconditioning Seismic Data; #42399 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... of reflections beyond a certain offset/angle chosen as the limit of useful reflection signal). Fresh Ideas Needed The success of AVO attribute...

2019

Confronting the Elephant

Said Amiribesheli, Andrew Weller

GEO ExPro Magazine

... with angle (AVA) acts as lithology indicator for the main Caley reservoir (reds) and the Hove seal (nothing). Here the AVA attributes suggest the presence...

2018

3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs

Antonio C.B. Ramos, T.L. Davis

Rocky Mountain Association of Geologists

... the effects of fractured coal-seam zones on angle-dependent P-wave reflectivity. Synthetic CMP gathers are generated for a horizontally layered earth...

1997

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)

... reflectivity), Fluid factor, Poisson’s ratio reflectivity, Vp/Vs, near and far angle stacks. Acoustic impedance was derived from AVO intercept using...

2008

Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, Mcelroy Field, Texas

William M. Bashore, Robert T. Langan, Karla E. Tucker, Paul J. Griffith

Special Publications of SEPM

... and receiver locations that are necessary to image the reservoir. Obtaining reflections with as high an angle (near to normal) of incidence on the reservoir...

1995

Understanding Lateral Reservoir Development Through Partial Stack Seismic Forward Modeling - Case Study: BŽ Field, Nam Con Son Basin … Vietnam

Wawan Satriawan, Ian Millar, Leonard Lisapaly, Jimmy Ting

Indonesian Petroleum Association

... and the reflectivity of each angle stack to generate the synthetic seismic response for our observation. Here, the wavelets were extracted from the seismic...

2009

Lidar Intensity as a Remote Sensor of Rock Properties; #40618 (2010)

Darrin Burton and Lesli J. Wood

Search and Discovery.com

... What controls intensity? i=intensity Lidar equation: ρ=target reflectivity (Pfeifer et al, 2007) α=angle of incidence i = ρ cos(α) / r2 ƞsys C r...

2010

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

... for weakly anisotropic elastic media. Studia geophysic. Rüger, A., 1998. Variation of P-wave reflectivity with offset and azimuth in anisotropic media...

2014

Analysis of the Hydrocarbon Sandstone Distribution Using Rock Physics and Petrophysics Calculations, Simultaneous Inversion, Extended Elastic Impedance (EEI) and Curved Pseudo-Elastic Impedance (CPEI) in X Field Bonaparte Basin

Alfan Hidayah Kusuma, Meta Nisrina Syafitri, Zakki Fahrurrozi

Indonesian Petroleum Association

.... Generating partial angle gathers aims to see the variation of the seismic amplitudes at different range of incident angles. In addition, partial...

2020

Reservoir Quality and Rock Properties Modeling Results … Jurassic and Triassic Sandstones: Greater Shearwater (HPHT) Area, UK Central North Sea; #20320 (2015)

Thomas R. Taylor, Mark G. Kittridge, Peter Winefield, L. Taras Bryndzia, Linda M. Bonnell

Search and Discovery.com

... be known as amplitude versus angle (AVA), but AVO is the more commonly used term because the offset is what a geophysicist can vary in order to change...

2015

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... [email protected] and Gary F. Margrave University of Calgary, Calgary, AB, Canada Summary In presented AVO (amplitude variation...

Unknown

P-Wave Impedance, S-Wave Impedance and Density from Linear AVO Inversion: Application to a VSP Data from Alberta

Faranak Mahmoudian

Search and Discovery.com

... [email protected] and Gary F. Margrave University of Calgary, Calgary, AB, Canada Summary In presented AVO (amplitude variation...

Unknown

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

Nelson Veissid

Environmental Geosciences (DEG)

..., such that there is a 180 angle view. The pair of solar cells used for the albedo experiment connects to a load resistance of 1 ohm, and its voltage is amplified...

2003

Abstract: AVAZ and VVAZ Practical Analysis to Estimate Anisotropic Properties; #90224 (2015)

Yexin Liu

Search and Discovery.com

... and actual intrinsic VTI anisotropy. For isotropic media: 2 𝑡 2 𝑋 = 𝑡0 + 𝑋2 (2) 𝑉2 𝑛𝑚𝑜 For pure HTI media: The near-offset variation in NMO...

2015

Current Workflows for Shale Gas Reservoir Characterization

Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

..., the PP reflection coefficient decreases with increasing angle. This implies that if the near and far stack are examined for a given seismic data volume...

2013

Shale Gas Reservoir Characterization Workflows, #80379 (2014)

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

Search and Discovery.com

... reflection coefficient decreases with increasing angle. This implies that if the near and far stack are examined for a given seismic data volume, at the top...

2014

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