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The AAPG/Datapages Combined Publications Database

Showing 527 Results. Searched 200,691 documents.

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What Are You Interpreting? Your Seismic Image Could Be Misleading You!

R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... model, Vεδθ, in the case of anisotropy, specifically transverse isotropy that may be described using the Thomsen parameters ε and δ (Thomsen, 1986...

2006

Quantitative time-lapse analysis of 4D DAS VSP time shifts to monitor stimulated rock volume in unconventional reservoirs

Yesser Haj Nasser

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the induced fractures. To achieve this, first, I use a VTI model with initial anisotropic Thomsen’s parameters 𝜖, 𝛿, and 𝛾 to compute the P...

2022

Abstract: The Evolving Role of Geophysics in Exploration. From Amplitudes to Geomechanics (Paper C7)

E. C. Andersen, D. Gray

Geological Society of Malaysia (GSM)

... and fluids from seismic data. (Figure 2). Thomsen (1985) simplified the concept of seismic anisotropy, the variation of physical properties in different...

2012

Abstracts: The Evolving Role of Geophysics in Exploration: From Amplitudes to Geomechanics; #90173 (2015)

Eric Andersen, David Gray

Search and Discovery.com

...). AAPG Search and Discovery Article #90173 CSPG/CSEG/CWLS GeoConvention 2011, Calgary, Alberta, Canada, May 9-11, 2011 Thomsen (1985) simplified...

2015

PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study

Morgan P. Brown, Joseph H. Higginbotham, Dave List, Chris Lang

Unconventional Resources Technology Conference (URTEC)

... of faults. Vertical mistie correction predicted the top Niobrara to within 4 feet on a new well, but we show enough variation in Thomsen  to justify...

2013

PSDM for unconventional reservoirs? A Niobrara Shale case study; #80405 (2014)

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez, Dave List, Chris Lang

Search and Discovery.com

... Niobrara to within 4 feet on a new well, but we show enough variation in Thomsen δ to justify anisotropic PSDM. Azimuthal velocity analysis using Wave...

2014

ABSTRACT: Seismic-Based Geomechaical Modeling Provides Attributes for Directional Well Planning; #90013 (2003)

EVGENII KOZLOV, IGOR GARAGASH, ALLEN LOWRIE

Search and Discovery.com

... of parameters: bulk and shear anisotropic elastic moduli, density, angle of internal friction, rock cohesion, strength limit, and initial distribution...

2003

Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)

Faranak Mahmoudian and Gary F. Margrave

Search and Discovery.com

... of two HTI layer, to directly invert for fracture orientation and the anisotropic gradient (a combination of δ and γ parameters) from azimuthal...

2014

Frac Hit Prevention and Engineered Treatment Design in the Permian Basin Using In-Situ Stress from 3D Seismic

Michael Shoemaker, James Hawkins, John Becher, Veronica Gonzales, Sandeep Mukherjee, Reza Garmeh, David Kuntz

Unconventional Resources Technology Conference (URTEC)

... Scalar For Vertical Transverse Isotropic (VTI) media representing anisotropic shale, Thomsen et al. (2013) and Sayers et al. (2015) both argue...

2019

Crack Density Identification From Shear Wave Splitting Parameter Using Model Single Set Aligne Fracture: a Case Study Carbonate Reservoir

Thariq Guntoro, Intan Andriani Putri, Pebrian Tunggal Prakosa, Yulia Putri Wulandari

Indonesian Petroleum Association

...) fluid substitution equation, fluid replacement modeling, and Thomsen (1986) anisotropy parameters were used for shear wave velocity prediction. Vs_fast...

2014

Microseismic Quality Control Using Synthetic Seismograms

M. C. Smith, S. D. Goodfellow, J. Huang, S. C. Maxwell, J. Teff, B. Kennedy, B. Bayliss

Unconventional Resources Technology Conference (URTEC)

... the build section of the well into the lateral and the calibrated Thomsen parameters (Thomsen, 1986) within those layers will be underestimated...

2016

Towards Quantitative Assessment of 4D DAS Time Shifts for Enhanced Stimulated Rock Volume Characterization

Yesser Haj Nasser

Unconventional Resources Technology Conference (URTEC)

... phase velocity for the baseline survey. This model is best characterized by the anisotropic Thomsen’s parameters 𝜖, 𝛿, and 𝛾 (Thomsen, 1986). Second...

2022

Integration of Core Data with Well Logs for Geomechanical Property Determination and Monitoring in the Argentinean Vaca Muerta Shale Formation

Maxwell Willis, Azra N. Tutuncu

Unconventional Resources Technology Conference (URTEC)

... to develop an anisotropic formation model for which the logs could be calibrated with. Thomsen coefficient epsilon was determined being not equal...

2014

Anisotropic elastic full-waveform inversion for crosswell seismic data for Wyoming CarbonSAFE project

Olga Podgornova, Shujaat Ali, Ting Lei, Peng Li, Matthew Johnson, Lu Lee, Zunsheng Jiao, J. Fred McLaughlin, Erik Borchardt, Lin Liang, Pierre Bettinelli, Joel Le Calvez

International Meeting for Applied Geoscience and Energy (IMAGE)

... and delta. and Thomsen The data show strong anisotropy for both P and SH arrivals, and an anisotropic initial model was constructed by traveltime...

2023

A Petrophysical Study on Floyd Shale; #110072 (2008)

Mriganko Sarkar, Chandra S. Rai, Carl H. Sondergeld

Search and Discovery.com

... ) δ = 2C33(C33 − C44 ) (Thomsen, 1986) 2 9/14/2008 2 AAPG Convention 2008- San Antonio 2008- 16 Variation of Thomsen’s anisotropy parameters...

2008

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

...-physical parameter that is not directly related to the Thomson anisotropy parameters  and  (Tsvankin and Thomsen, 1994). The double square root...

2015

Workflow for Zoeppritz AVO Inversion to Estimate Seismic Anisotropy, Geomechanical Properties and TOC of Shale: Case Study of Avalon Shale, Delaware Basin, #42416 (2019).

Un Young Lim, Nurul Kabir, Richard L. Gibson Jr.,

Search and Discovery.com

... by " Underestimated Density 14 Estimation of seismic anisotropy (✏ and ) Thomsen parameters (✏ and ) [Thomsen, 1986]: "= = 2 V 2 (90 ) VP (0...

2019

Advanced Imaging and Inversion for Oil Production Estimates in Unconventional Resource Plays

Greg M. Johnson, Paul Miller, David Phillips

Unconventional Resources Technology Conference (URTEC)

... effects (Thomsen 2002) and any amplitude-versus-angle inversion work will benefit from advanced imaging that properly corrects for TI. The multiazimuth...

2013

Using Thomsen's Model to Analyze Composition and Internal Structure of Shales; #90017 (2003)

Jose Agnelo Soares, Margareth da Silva Brasil Guimaraes

Search and Discovery.com

... platelets porosity. Thus, knowing the anisotropy Thomsen´s parameters through wave velocities measurements in shale samples and adopting a value...

2003

Impact Of Anisotropy Induced By Shale Lamination And Natural Fractures On Drilling, Completion, and Fracturing Design

Ming Gu

Unconventional Resources Technology Conference (URTEC)

... to the Eq. (6), the anisotropy introduced by the natural fractures can be defined as three non-dimensional parameters similarly as Thomsen anisotropy...

2017

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