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

Jaewook Lee, Un Young Lim, David Lumley

Unconventional Resources Technology Conference (URTEC)

... (A, B, C) terms from the modeled reflection coefficients. Our results show that the C term can serve as a good lithology indicator because...

Wave-equation based seismic AVO inversion: A pragmatic approach to use the full elastic wave-field for exploration and production

Peter Haffinger, Dries Gisolf, Panos Doulgeris, Hansel Gonzalez

International Meeting for Applied Geoscience and Energy (IMAGE)

... wave-propagation, in terms of primary reflection coefficients. The reflection coefficients defined by the Zoeppritz equations (1919), are then also...

An Analysis of a Seismic Reflection from the Base of a Gas Hydrate Zone, Offshore Peru (1)

JOHN J. MILLER , MYUNG W. LEE , and ROLAND VON HUENE

AAPG Bulletin

... OF REFLECTION COEFFICIENTS The reflection coefficient of the sea floor (Rc[sf]) was determined from the ratio of the amplitude of the sea floor...

Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015)

Tiewei He and Douglas Schmitt

Search and Discovery.com

... and differential pressure for water saturated sample SB007. Figure 5. P-P (left) and P-SV (right) reflection coefficients as a function of angle...

High-order viscoelastic prestack seismic nonlinear frequency-dependent inversion method based on scattering matrix

Tianjun Lan, Zhaoyun Zong

International Meeting for Applied Geoscience and Energy (IMAGE)

... reflection coefficients or accurate reflection coefficients are required to make full use of large-angle incident seismic data, thereby improving...

G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset

Norman S. Neidell

AAPG Special Volumes

....), "Approximations to the Reflection and Transmission Coefficients of Plane Longitudinal and Transverse Waves," Geophysical Prospecting, Vol. 9, No. 4, pp...

Abstract: Exact, Linear and Nonlinear AVO in Terms of Poroelastic Parameters; #90187 (2014)

Steven Kim and Kris Innanen

Search and Discovery.com

... of the reflection or transmission coefficients in equation (10). Our research focuses on but we may use Cramer’s rule to solve for , , or . Cramer’s rule...

VSP: Lessons from Numerical Simulation

M. Suprajitno, S. A. Greenhalgh

Indonesian Petroleum Association

... computing the 'resultant' transmission and reflection coefficients at R (Figure 1). The resultant coefficients are expressed in the frequency domain...

Abstract: Seismic Amplitude Measurement for Primary Lithology Estimation (SAMPLE): Case Histories From Tertiary Western Basins

G. S. Gassaway

Earth Science Bulletin (WGA)

..., and pore fluids are estimated. The SAMPLE method works because reflection and transmission of elastic waves (seismic waves) at the boundary between...

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)

... and twoway transmission effects. Linear inversion based on primary reflection coefficients cannot handle this. It is also demonstrated that time...

ABSTRACT: Automatic System for Scanning and Autofocusing of Digital Images Applied to a Coal Petrographic Microscope

Alejandro Restrepo-Martínez, Astrid Blandón-Montes

The Society for Organic Petrology (TSOP)

... are observed with white and fluorescence light, using reflection and transmission setups, respectively. The system proposed is a useful tool for automatic...

Delineation of the Reservoir by Seismic Methods: Chapter 3

Roberto Sarmiento

AAPG Special Volumes

... resulting from the convolution of the reflection coefficients, taking transmission losses into consideration; 4. Multiples only; 5. Sum of 3 and 4...

Abstract: Intrinsic and Apparent Seismic Attenuation in VSP Data; #90211 (2015)

Arnim Haase and Robert Stewart

Search and Discovery.com

.... For non-zero offset cases, these synthetic VSP’s show multiples and multimodes on reflection and transmission. At small source offsets, trace maxima...

Abstract: Different Flavors of the Marchenko-Equation-Based Internal Multiple Elimination Methods: the Trade-off between Fidelity, Computational Cost and Ease of Use; #91204 (2023)

Marcin Dukalski, Chris Reinicke

Search and Discovery.com

... to calculate an inverse transmission operator, including all possible internal multiple generation mechanisms, through any desired section of the medium...

ABSTRACT: Relating Seismic Lithology to Gulf Coast Petrophysics, by Folke Engelmark, Fred Hilterman, Luh C. Liang, and C. Scott Burns; #91043 (2011)

Search and Discovery.com

Improving Depth Prediction Accuracy of Quantified Drilling Hazards

W. Scott Leaney, William H. Borland

Geological Society of Malaysia (GSM)

...-l (5) i=l 1- ri-l If the reflection coefficients are small, then this recursive product can be approximated by an exponentiated integration...

Review: Geophysical Methods for Karst Detection and Mapping

T. L. Dobecki

Houston Geological Society Bulletin

... rock. A void/rock interface creates a significant acoustic impedance contrast which results in large reflection coefficients (nearly 100% of the seismic...

Abstract: Characterizing Dipping Fractures from P-wave Amplitude Versus Azimuth Studies; #90187 (2014)

Jon Downton and Hampson Russell

Search and Discovery.com

.... L. Martins, 2001, Properties of weak contrast PP reflection/transmission coefficients for weakly anisotropic elastic media: Studia Geophysica et...

Jointly data and model driven pre-stack inversion of elastic and anisotropy parameters in HTI media

Xin Zhang, Jianhua Geng

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion of anisotropy parameters relies on an approximation formula for reflection and transmission coefficients in anisotropic media. However...

Laboratory Experiments and Numerical Simulation on Bitumen Saturated Carbonates: A Rock Physics Study for 4D Seismology

Arif Rabbani, Jason Nycz, Zizhen Wong, Doug Schmitt, Ken Gray

Petroleum Exploration Society of Australia (PESA)

.... The technique involves two buffers — one for a P-wave and other for an S-wave transducers — to calculate relative reflection coefficients and also flight...

Abstract: Amplitude variation with offset (AVO) inversion modeling with a local elastic solver

Ligia Elena, Jaimes Osorio, Alison Malcolm

Atlantic Geology

..., the wave reflections are better modeled by spherical waves than planar waves. Indeed, spherical reflection coefficients vary from planar reflection...

Influence of Organic Matter in Soils on Radar-Wave Reflection: Sedimentological Implications

Remke L. van Dam,, Elmer H. van den Berg, Sytze van Heteren, C. Kasse, Jeroen A.M. Kenter, Koos Groen

Journal of Sedimentary Research (SEPM)

... amplitudes cannot be directly correlated with reflection coefficients (RC). For the unit 4 transition RC differs by a factor of 2 between pF 1 and pF...

ABSTRACT: Resolution Issues with Regard to Seismic Elastic Lithologic Modeling, by Keith Wrolstad; #91035 (2010)

Search and Discovery.com

3D GPR data mel-frequency cepstral coefficients features for effective CNN classification of urban utilities

Jide Nosakare Ogunbo, Sang Hun Baek, Sang-Wook Kim

International Meeting for Applied Geoscience and Energy (IMAGE)

.../ doi.org/10.1190/geo2016-0631.1. Ogunbo, J. N., 2022, Algorithm for accurate velocity analysis of 1D acoustic reflection and transmission ...

Abstracts: On the Extraction of Seismic AVF Information and the Inversion of Anelastic Reflectivity; #90173 (2015)

Chris Bird, Kristopher Innanen, Laurence Lines

Search and Discovery.com

..., Calgary AB cwbird@ucalgary.ca Summary Strongly dispersive reflection coefficients associated with highly absorptive, hydrocarbon charged targets...