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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 20,604 Results. Searched 200,357 documents.

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Relation between dips of prestack time migrated and unmigrated data

Jagmeet Singh

International Meeting for Applied Geoscience and Energy (IMAGE)

... aperture, we see from Figure 1 that we get the following equation for the migration ellipse (dotted curve) :4𝑥 2 𝑣2 𝑡 2 + 4𝑧 2 ′2 𝑣 2 𝑡0 =1 (4...

2024

Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

.... Improved depth sections by combination of ray tracing and wave equation migration. Exploration Seminar, Cairo 1984 SCHNEIDER, J. and RIST, H., 1984. Depth...

1987

X-Ray Diffraction Techniques Applicable to Studies of Diagenesis and Low Rank Metamorphism in Humic Sediments

George M. Griffin

Journal of Sedimentary Research (SEPM)

...X-Ray Diffraction Techniques Applicable to Studies of Diagenesis and Low Rank Metamorphism in Humic Sediments George M. Griffin 1967 Vol. 37 No. 4...

1967

Depth Imaging „ Seeing the Invisible

Vetle Vinje

GEO ExPro Magazine

... a solution of the wave equation using a ray approximation is used in Kirchhoff and Beam Migration. The main differences between these methods, which all have...

2010

EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez

GCAGS Transactions

... in the Gulf Coast. When the velocity complexity is severe, such as under Gulf of Mexico salt, Wave Equation PSDM (WEM) algorithms generally produce...

2010

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: Uranium favorability interpreted from Uranium Reconnaissance Program data, ground radiometry and gravity (New Brunswick)

J. J. Chandra, D. E. Gemmell

Atlantic Geology

... from the u.R.P. survey (1976), were investigated on the ground by hand-held and truck-mounted gamma-ray sensors. Of these ~no­ malies, nine have been...

1981

ABSTRACT: Low Resistivity in Aux Vases Sandstone Reservoirs in the Illinois Basin Linked to Clay Minerals Coating Sand Grains

Beverly Seyler

The Society for Organic Petrology (TSOP)

... virtually every grain and lining all pores. X-ray diffraction and SEM/EDX analyses have shown that diagenetic clay minerals in the reservoir facies...

1997

Abstract: Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... applying a horizon by horizon migration based on a ray tracing method. The resulting velocity distribution is then used in the wave equation...

1985

-- no title --

user

Search and Discovery.com

... where multi-valued ray-paths exist (e.g. complex salt bodies), we generally use a oneway Wavefield Extrapolation (WE) algorithm instead. However, more...

Unknown

-- no title --

user

Search and Discovery.com

... where multi-valued ray-paths exist (e.g. complex salt bodies), we generally use a oneway Wavefield Extrapolation (WE) algorithm instead. However, more...

Unknown

Abstract: Wavepath Imaging for Passive Data; #91204 (2023)

Yicheng Zhou, Sherif Hanafy

Search and Discovery.com

... method, here the seismic energy is smeared along the whole image volume, which may increase the level of artefacts, and (3) using wave-equation-based...

2023

Multiple Diffractions

Search and Discovery.com

N/A

A Regression Technique for the Analysis of Shales by X-ray Diffractometry

John M. Cubitt

Journal of Sedimentary Research (SEPM)

...A Regression Technique for the Analysis of Shales by X-ray Diffractometry John M. Cubitt 1975 Vol. 45 No. 2. (June), Quantitative mineralogical...

1975

Identification of Distribution Sandstone Reservoir Zone and Hydrocarbon Fluid Using Extended Elastic Impedance (EEI) in Talang Akar Formation at Azzura Field, North West Java Basin

Annisa Dian Afsary, Adi Susilo, Bayu Dwijatmiko, Agung Dwi Alfianto

Indonesian Petroleum Association

... as the amount of change in volume (can be compressed) when subjected to stress. Incompressibility can be expressed by equation of Kolsky, H. (1963...

2019

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... that is homogeneous (constant P-wave velocity) with the exception of an isolated boulder at some depth. Also shown are the straight ray paths traveled...

1992

Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)

Robert J. Ferguson and Gary F. Margrave

Search and Discovery.com

... and seismic reflectivity is estimated (imaging). Unlike ray-based approaches, extrapolation raypaths are not restricted to minimum traveltimes (Schneider...

2013

Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)

Robert J. Ferguson and Gary F. Margrave

Search and Discovery.com

... and seismic reflectivity is estimated (imaging). Unlike ray-based approaches, extrapolation raypaths are not restricted to minimum traveltimes (Schneider...

2013

Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)

Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray

Search and Discovery.com

... [email protected] Summary Wave-equation migration, which uses more accurate wavefield extrapolation techniques than ray-based Kirchhoff...

2013

Abstracts: A Decomposition of RP into Contributions from single-parameter Reflectivities; #90173 (2015)

Kristopher A. Innanen

Search and Discovery.com

... on Taylor's series expansions with respect to both the model parameters within the Zoeppritz equations (Ursin, & Dahl, 1992), and with respect to the ray...

2015

On the connection between WRI and FWI: Analysis of the nonlinear term in the Hessian matrix

Ali Gholami, Hossein S. Aghamiry, Stephane Operto

International Meeting for Applied Geoscience and Energy (IMAGE)

... reconstruction inversion (WRI) (van Leeuwen and Herrmann, 2013) increases the robustness by relaxing the waveequation constraint. This wave-equation...

2022

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