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The AAPG/Datapages Combined Publications Database

Showing 19,696 Results. Searched 195,452 documents.

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Shear Velocity Prediction and its Rock Mechanic Implications, #41296 (2014)

Yexin Liu, Zhuoheng Chen, Kezhen Hu

Search and Discovery.com

... estimation. We propose a method for estimating the shear velocity from P-wave velocity, porosity, shale content and saturation. The response equation...

2014

A Practical Review of Migration Issues and Solutions; #40723 (2011)

Ian F. Jones

Search and Discovery.com

..., both of which are numerical solutions to the wave equation. These two categories are the integral methods (including Kirchhoff and beam techniques...

2011

Abstract: AVO Depth Modelling (Paper 2)

Leong Lap Sau, Ng Tong San

Geological Society of Malaysia (GSM)

... conventionally derived data is one such approach. Given a eMP gather, the horizontal display of the variation of P-wave amplitudes provide a quick-look at any...

1996

Gravel Ripples on the Inner Scotian Shelf

D. L. Forbes, R. Boyd

Journal of Sedimentary Research (SEPM)

..., computed from Equation 2, for appropriate values of incident wave period in the range 8 T 16 s, range from 0.6 to 2.0 m/s. Threshold velocities computed...

1987

Simultaneous inversion of tight sandstone reservoir fluid and brittleness index based on frequency-dependent AVO

Tianjun Lan, Zhaoyun Zong

International Meeting for Applied Geoscience and Energy (IMAGE)

.... In order to reduce the reservoir prediction error and improve the calculation efficiency, the PP-wave reflection coefficient equation characterized...

2023

Abstracts: Time-lapse Differential AVO: Reflection Coefficient at Fluid-fluid Boundary; #90173 (2015)

Jinfeng Ma

Search and Discovery.com

... the amplitude difference and map fluid variation in a reservoir. In terms of elasticity modulus of Zoeppritz equation approximation and based on fluid...

2015

Abstract: Calculation of Amplitude and Velocity in General Anisotropic Media; #90224 (2015)

M. Malehmir and D. R. Schmitt

Search and Discovery.com

... propagation, lets start with general wave equation 1 and plane wave equation 2. 1 ∂ ρ ui = ci jkl ¨ 2 ∂xj ∂ uk ∂ ul + ∂ xl ∂ xk uk = A0 Pk e(−iK(n.r...

2015

Modeling the Rollovers of Sandy Clinoforms from the Gravity Effect on Wave-Agitated Sand

Neil C. Mitchell

Journal of Sedimentary Research (SEPM)

... Equation 1 with exponentially declining K with depth (Mitchell and Huthnance 2007), simulating the effect of wave action on sediment supplied from...

2012

Abstract: DMO and Migration: Imaging Tools in Geophysics

Craig J. Beasley

Geological Society of Malaysia (GSM)

... are numerical processes based on the wave equation that attempt to focus the seismic images in much the same way as a camera lens focuses light...

1991

Study of Subtle Traps Using Horizontal Seismic Sections: ABSTRACT

Alistair R. Brown, C. G. Dahm, Robert J. Graebner

AAPG Bulletin

... of these features has been further studied using seismic logs, derived by wave equation inversion. Reservoirs thicker than 30 ft (9 m) have proved...

1981

SONIC LOG APPLICATIONS - EASTERN VENEZUELA

W. F. Clarke

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... the rock is subjected. Rock System - The theory of wave propagation through an heterogeneous elastic medium is a complex one which involves the elastic...

1961

Application of Multi-Scale Fracture Detection from Borehole Microresistivity Image and Dipole Shear Wave Reflection Imaging in Shale Gas Horizontal Wells: A Case Study in Changning Gas Field

DE Heng, He Fa Yao, Ran Wen, Bin Lin, Qi Cheng Fan, Yan Hui Fu,

Unconventional Resources Technology Conference (URTEC)

... of the wave on the propagation path, e(−ωD/2Q ∗β), Where Qβ and β are the quality factor and wave velocity of shear wave. It can be seen from equation 1...

2021

Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology

Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia

Indonesian Petroleum Association

... processing flows for both PP and PS waves were laid out to improve the structural and reservoir images. Particularly for PS converted wave data, apart from...

2014

Abstract: AVAZ Inversion for Anisotropy Parameters of a Fractured Medium; #90174 (2014)

Faranak Mahmoudian, Gary F. Margrave, and Joe Wong

Search and Discovery.com

... inversion. This result makes it possible to compute the shear-wave splitting parameter, γ, (historically determined from shear-wave data) directly...

2014

A Methodology for Selecting Optimal Pipe Rocking Regimes during Slide Drilling

Ian Rostagno, Michael Yi, Pradeepkumar Ashok, Eric van Oort, Ben Potash, Chris Mullin

Unconventional Resources Technology Conference (URTEC)

... and the wellbore. Drillstring dynamics was then simulated using a torsional damped wave equation applying finite difference approximations. Finally...

2019

Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)

Raul Cova, David Henley, and Kris Innanen

Search and Discovery.com

...Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015) Raul Cova, David Henley, and Kris Innanen Datapages/Search and Discovery Article...

2015

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

... and βj are its P- and S-wave velocities. Equation (1) can be further simplified by assuming constant density or replacing density by P-wave velocity...

2013

ABSTRACT: Quantifying CO2 Saturation from Time-Lapse Well Logging in an Onshore Saline Aquifer, Nagaoka, Japan; #90061 (2006)

Ziqiu Xue, Jiro Watanabe, and Daiji Tanase

Search and Discovery.com

... results strongly suggested the capability for quantifying CO2 concentration from seismic wave data with Gassmann’s equation. AAPG Search and Discovery...

2006

Abstract: Application of Viscoacoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data; #90246 (2016)

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... to fully resolve the compartmentalized nature of the gas bodies, a wave equation-based method to derive the Earth model is required. Many current...

2016

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