Long-Offset Approximations to NMO Function for a Layered Subsurface

E. Blias

Search and Discovery.com

... in multilayered media: Applied Geophysics, 15, 314 (in Russian). Castle, R., J., 1994, A theory of normal moveout, Geophysics, 983-999. Malovichko, A., A., 1978...

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... noise. This is the same as AVO super gather. The CMP gather used for Q estimation needs to be without NMO stretch, so that if normal moveout...

An Interpreters Guide to Successful Prestack Depth Imaging; #41544 (2015)

Rob A. Holt

Search and Discovery.com

... of traces), the velocities and stack should both be geologically plausible, and the gathers coming out of the final migration (before residual moveout...

Integration of Geologic Data into Structural Imaging of the Andean Subthrust, Peru; #41605 (2015)

Margaret A. Stratton, Robert Vestrum, Dennis Ellison

Search and Discovery.com

... inversion of Paleozoic high-angle normal faults and overlying thin-skinned tectonics (Espurt et al., 2008; Hermoza et al., 2006.). As illustrated...

Poststack Processing Steps for Preconditioning Seismic Data; #42399 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... up to prestack migration and normal moveout (NMO) application, still there are some simplistic preconditioning steps that are generally adopted...

Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico

Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey

AAPG Special Volumes

... the velocity analysis for the normal moveout correction and from the migration-velocity analysis for the migration. The resolution of the first velocity model...

Application of Amplitude, Frequency, and Other Attributes to Stratigraphic and Hydrocarbon Determination: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

M. T. Taner, R. E. Sheriff

AAPG Special Volumes

... of normal moveout (variation of arrival time with source-to-geophone distance) of amplitudes and, to a lesser extent, of the dominant frequency...

Dilworth (Carrizo) Field , McMullen County, Texas

Redge L. Greenberg and T. W. Swinbank

GCAGS Transactions

... by several radial faults with up to about 200 feet of normal vertical displacement. A prominent salt overhang is evident on the southeastern side...

Designing Coal-Bed Methane Seismic Acquisition Survey Parameters Using Finite Difference Modeling

Abdul Haris, Befriko Murdianto, Adriansyah

Indonesian Petroleum Association

... interface include continuity of tangential and normal displacement, as well as continuity of normal and tangential stress. The equations are fully...

Analisis de Anisotropia y Caracterizacion de Fracturas: Una Aplicacion en la Cuenca del Catatumbo [PAPER IN SPANISH] Anisotropy Analysis and Characterization of Fracture: An Application in Catatumbo Basin

C. Guerrero, M. Garnica

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... laminadas, etc. La anisotropía sísmica ha sido considerada como un atributo físico que puede ser medido a partir del velocidades de Normal MoveOut (NMO...

First arrival enhancement by statics preserving filtering using surface-consistent constraints

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... initial time shifts), it is clear that we can estimate an initial filter f using normal equations. Let us define the vector s=Df, the predictable signal...

Dude, wheres my AVO? A case study from the Browse Basin, North West Shelf, Australia

Said Amiribesheli, Jordan McGlew, Joshua Thorp

Petroleum Exploration Society of Australia (PESA)

... Migration (PSTM) workflow that incorporated 4th order Normal Moveout (NMO) velocities at the migration stage. The 4th order NMO velocities provides...

Combining high resolution modelling and one-way wave field extrapolation migration to image beneath a complex overburden: A case study from Porcupine Basin, Ireland

Partha Pratim Mandal, Weidi Koh, Julien Bluteau, David Laws, Jennifer Greenhalgh

Petroleum Exploration Society of Australia (PESA)

... (Δt), which is referred to as three dimensional residual normal moveout (3D RNMO) (Sherwood et al., 2011). Due to its implementation, this technique...

Combination of Seismic Velocity Gradient and Sonic Gradient Variation as a Hydrocarbon Indicator: A Case Study in Clastic Reservoirs in South Sumatra

Iswani Waryono, Wahyu Triyoso

Indonesian Petroleum Association

... hydrocarbon charged reservoir from brine reservoir. RMS Velocity field is main driver of VVO or VVA. It is generated automatically from Normal Move Out (NMO...

Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

... Moveout (DMO) correction using a Kirchoff algorithm Velocity analysis every 0.5 km, followed by final mute picking Normal Moveout (NMO...

Efficient Q-RTM in anisotropic TTI media with phase and amplitude compensation

Yongzhong Wang, Faqi Liu, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 𝑣 𝑝𝑧 is the P-wave phase velocity in the direction normal to the symmetry plane, 𝑣 𝑝𝑛 is the P-wave normal moveout velocity, and 𝑣 𝑠𝑧 is the SVwave...

Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand

Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher

AAPG Special Volumes

... of the geometry, correction for spherical divergence, normal-moveout correction, stacking, poststack deconvolution, time-domain migration, and time-domain...

Microseismic Event Location Using Multiple Arrivals: Demonstration of Uncertainty Reduction

Zhishuai Zhang, James W. Rector, Michael J. Nava

Unconventional Resources Technology Conference (URTEC)

... is a typical set of waveforms and moveout recorded by the geophone array. We can easily identify the head wave arrival based on its low amplitude and high...

P- and PS-Wave Vector Wavefields for Anisotropic Petrophysics

James Gaiser

Petroleum Exploration Society of Australia (PESA)

... as from long wavelength moveout behaviour. Key words: Petrophysical properties, vector wavefield, converted waves, anisotropy, joint inversion INTRODUCTION...

Seismic applications of the Radon transform and a new second-order traveltime local transform

Ehsan Soleymani, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... t = τ + px2 . The parabolic approximation is used to model the traveltime of reflections after normal moveout correction (Yilmaz, 2001). Hence...

Quantitative Seismic Reservoir Characterization of an Oligocene Miocene Carbonate Buildup: Malampaya Field, Philippines

Dietmar Neuhaus, Jean Borgomano, Jean-Claude Jauffred, Christophe Mercadier, Sam Olotu, Jrgen Grtsch

AAPG Special Volumes

... to nonhyperbolic residual moveout. High-frequency attenuation in the overburden and the effects of residual moveout limit the frequency spectrum...

Un Caso de Obtención de Imágenes Sísmicas en Zonas Complejas de Colombia [PAPER IN SPANISH] A Case of Seismic Imaging in Complex Areas of Colombia

S. E. Guevara, T. Salinas, A. Tada

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... por tener un “moveout” lineal lo que facilita medir su velocidad de fase como la pendiente de la recta que pasa por varios crestas o valles del...

AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods

Alan R. Huffman

AAPG Special Volumes

... of far-offset data that are degraded by normal moveout (NMO) stretch. Near-stack inversion also gives the most robust calibration to well logs...

Measurements Derived from Seismic Data as an Aid in Hydrocarbon Definition

R. E. Sheriff, M. T. Taner, F. P. Kronberger, L. R. Denham

Indonesian Petroleum Association

... reflectivity) into acoustic impedance which is then calibrated with velocity constraints derived from normal-moveout measurements or a sonic log in a nearby well...

Low Frequency Shadow Zone Analysis Based on CWT Spectral Decomposition: Case Study of South Sumatra Basin

Abdul Haris, I Nengah Suabdi, Erwinsyah, Adriansyah, Abdullah Nurhasan, Ahsanul Khair, Ian A. Kainama

Indonesian Petroleum Association

..., 2005). Some of the geophysical reasons for frequency anomalies are normal moveout stretch, deconvolution and incorrect velocity problems (Barnes...