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The AAPG/Datapages Combined Publications Database

Showing 33,054 Results. Searched 195,354 documents.

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Effects of Overburden Anisotropy and Vertically Aligned Fractures on P-Wave Azimuthal AVO Responses

Fatkhan, Yudi Yanto, Nofri Faruza Said

Indonesian Petroleum Association

... AVO response for fluid saturated fractures overlain by isotropic and anisotropic shales is modelled in Figure 2. The effect of shale anisotropy is again...

2005

Observations of Azimuthal Anisotropy in Prestack Seismic Data, #41572 (2015).

David Gray

Search and Discovery.com

... AVO can be seen on the event just below 2000 ms, as well as on many other events, after the azimuthal velocity effect has been removed. Figure 4 shows...

2015

Seismic reservoir characterization in a VTI anisotropic media: Case study in Malay Basin

Amir Abbas Babasafari, Deva Prasad Ghosh, Seyed Yaser Moussavi AlAshloo, Yasir Bashir, Chica Sambo, Ahmed M.A. Salim

Geological Society of Malaysia (GSM)

...-uniform stress also has effect on changing an isotropic reservoir to anisotropic reservoir. In clastic sediments, anisotropy can arise during and after...

2018

Anisotropy

Search and Discovery.com

N/A

Abstract: Pore Pressure Inversion using AVO Information. The Influence of Overburden Changes on Pore Pressure Quantification; #90211 (2015)

Petar Angelov, Rob Arts, Kees Wapenaar

Search and Discovery.com

... effect, 3) Effect of weak anisotropy in the overburden. Literature studies show that the ab solute changes in the seismic attributes are less...

2015

Seismic Anisotropy Modeling from Well Log in Talang Akar Formation, South Sumatra, Indonesia; #41360 (2014)

Thariq Guntoro, Intan Andriani Putri1, and Dwa Desa Warnana

Search and Discovery.com

.... In this paper, the effect of clay content to the anisotropy analysis in sandstone reservoir is discussed. The case study is in G402 well...

2014

Optimized characterization workflow for naturally fractured reservoirs using seismic anisotropy attributes in the Middle Magdalena Valley basin, Colombia

Oscar Moreno, Enrique Casaña, Luis Figuera, Iván Higuera, Diego García, Jorge Acosta, Benjamin Roure

International Meeting for Applied Geoscience and Energy (IMAGE)

... option involves the use of seismic anisotropy attributes derived from azimuthal variations of seismic velocity, AVO Gradient or Vp/Vs ratio. Assuming...

2023

Abstract: Practical Applications of Seismic Anisotropy; #90187 (2014)

Philip Wild

Search and Discovery.com

... offset (AVO) signature when the wave is reflected from the top or base of an anisotropic material, and a second exploits the polarizing effect...

2014

Case Study: Can We Use Angle Gathers to Detect Fracture Distribution of Carbonate Reservoir in Rama Field?

Zha Chaoyang, Sun Pengxiao, Shen Xiaohong, Wen Shuliang, Tang Donglin, Heng Liqun

Indonesian Petroleum Association

... that it can have a large effect on the AVO response based on the study of anisotropy AVO synthetics. As for seismic data, we can consider the near offset data...

2013

Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data

Septian Prahastudhi, Tenny Octaviani, Ayi Syaeful Bahri, Yulia Putri Wulandari

Indonesian Petroleum Association

...Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data Septian Prahastudhi, Tenny Octaviani, Ayi...

2012

Azimuthal AVO Gradient Anisotropic Analysis on Prediction of Fractures on Barnett Shale

Shiguang Guo, Bo Zhang, Tengfei Lin, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

.... By co mparing the azimuthal A VO gradient variat ion, we generate the AVO gradient anisotropy for prediction of natural fractures. Strike-slip...

2013

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

... between the sandstone and coal increases as the degree of fracturing in the later increases. Therefore, this effect should impact the measures of AVO...

1997

Improved TOC and Lithology Prediction for Wolfcamp Shales Using AVO Attribute Analysis

Jaewook Lee, Un Young Lim, David Lumley

Unconventional Resources Technology Conference (URTEC)

... approximations because the latter are limited to weak impedance contrasts and weak anisotropy. The modeled AVO responses show that the seismic velocities...

2020

P-Wave Azimuthal Anisotropy and Its Application in Sandstone-Conglomeratic in Yani Oil Field

Zha Chaoyang, Shen Shuirong, Hairunnisa, Xia Tianfang

Indonesian Petroleum Association

... seismic anisotropy analysis and by geo-mechanical modeling. To identify the effects of fracture density and fluid contents on azimuthal AVO responses...

2008

Correcting and Exploiting Shale Anisotropy Effect on LWD 2 MHz Resistivity Devices in Horizontal Drilling/Logging

C. Jackson, T. Hagiwara

CSPG Special Publications

...Correcting and Exploiting Shale Anisotropy Effect on LWD 2 MHz Resistivity Devices in Horizontal Drilling/Logging C. Jackson, T. Hagiwara 1995 81 81...

1995

Estimation of Total Organic Carbon (TOC) Content of Shale from AVO Inversion: A New Crossplot Approach Based on Zoeppritz Equations

Un Young Lim, Richard Gibson Jr., Nurul Kabir

Unconventional Resources Technology Conference (URTEC)

... an accurate solution based on the assumption of weak contrast and weak anisotropy. For this reason, AVO inversion based on above equations does...

2019

Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance

Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... the anisotropy parameters from the nonhyperbolic moveout effect on the offset gathers and azimuthal amplitude variances on azimuth gathers. Figure 2 illustrates...

2016

Rock Physics Study of Coal Bed Methane Reservoir Rock: Case Study of Muaraenim Coal

Bagus Endar B. Nurhandoko, Susilowati, Usep M. Ishaq, Hussein Rudiyanto, Y. Wiyanto, Budi Sulistyanto, Mahatman L. Budi, Kaswandhi Triyoso, KiskoRiondo Siahaan, Wahyu E. Abdillah, Danang Kusudiharjo

Indonesian Petroleum Association

... characterization methodology, from the pore structure, fracture and their effect of fluid saturation in seismic wave parameters including AVO modeling using...

2012

Eye-Openers from Re-Processing of Oil Sands Seismic Data; #41290 (2014)

David Gray, Seann Day, and Scott Shapper

Search and Discovery.com

... amplitude versus offset (AVO) techniques applied to wide-angle seismic data. Modern 3D seismic data acquired over oil sands plays typically has sufficient...

2014

Seismic Detection of Gas in Cretaceous Sandstones and Fractured Sandstones

Walter E. Johnson, William T. Brown Jr., James B. Peterson

Rocky Mountain Association of Geologists

... of seismic data, knowledge of petrophysics, seismic modeling, and the advent of AVO technology have all combined to make it possible to observe...

1995

Abstract: A New Method of Multiple Attenuation: Multiple Identification and Subtraction (II); #90171 (2013)

Wen-Jing Wu

Search and Discovery.com

... on pattern identification, does not. A simple synthetic model was created to investigate the effect of multipleattenuation on AVO signal (Figure 2a...

2013

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