Abstract: AVO Effects and Velocity Analysis; #90211 (2015)

Emil Blias

Search and Discovery.com

... determination for non-hyperbolic NMO functions...

Abstract: Simulteneously Acquring 3D-3C Well Data During 3D Surface Seismic Survey: A Useful Quality Control Tool; #90211 (2015)

E.L Bongajum

Search and Discovery.com

... parameters on existing sonic logs is used to assess the smoothening of the velocit y model on travel time, NMO correction, stacking and geometri cal...

Abstract: Initial Wavelet Estimate of EPSI in Shallow Water; #91204 (2023)

Rob Hegge, Rolf Baardman, Roald van Borselen

Search and Discovery.com

... an alternative method to derive the initial wavelet, which applies NMO using water velocity on the same range of near offset traces and then stacks them...

Seismic Imaging through Outcropping Carbonates: An Example from the Canadian Rocky Mountains, , #41533 (2015).

Yong Hua, Don C. Lawton

Search and Discovery.com

... picked using semblance analysis and constant velocity stack scans. The velocities were then used to create NMO-corrected gathers. A manually picked...

Common Reflection Surface

Search and Discovery.com

Geophysical Corner Articles from September 1996 — present, Compiled by Randy Ray

Search and Discovery.com

Relative inversion for extended elastic impedances

Peter Harris, Kathryn Young

International Meeting for Applied Geoscience and Energy (IMAGE)

... with increasing angle, it gives a rough indication of relative noise levels. Systematic sources of uncertainty in the gradient include non-flat gathers...

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... with a straight line. PFVO operates on a CMP gather without NMO, because NMO stretch at far offset distorts the spectrum of reflections. For a Ricker shape spectrum...

Abstract: Azimuthal Processing For Unconventional Resource Plays Using An Orthorhombic Velocity Model; #90174 (2014)

Shaowu Wang and David Wilkinson

Search and Discovery.com

... of ), the NMO velocities ( and ) in the symmetry-plane directions, and three anisotropic “anellipticity” coefficients ( , and ). As shown by Grechka...

Implementation of Poisson Impedance Inversion to Characterize Hydrocarbon Reservoir at Field BŽ, South Sumatera

Bagus Dwi Prasetyo, M. Syamsu Rosid, Junita Trivianty, Humbang Purba

Indonesian Petroleum Association

... curve before doing well to seismic tie (Figure 5a and 5b) to correlate well data with seismic data. Seismic data before NMO correction, with NMO...

Anisotropy Analysis in Shale Using Advanced Sonic Data - Bakken Case Study, #41049 (2012)

Mehdi Ostadhassan, Zhengwen Zeng, Hadi Jabbari

Search and Discovery.com

... model in exploration seismology. Neglecting anisotropy in shales may lead to crucial errors in normal move-out (NMO) corrections; dip move-out (DMO...

Using 3-D Seismic Data to Find New Reserves in Quitman Field Wood County, Texas

Thomas R. Wittick

GCAGS Transactions

.... The shot records have an average NMO velocity function applied to minimize trace-to-trace time variations due to NMO. The reflections are much stronger...

Seismic Time to Depth Conversion and Uncertainty Analysis for Horizon Prediction in a Proposed Well-Site of Sungai Gelam Field, Jambi Subbasin

Muhamad Wildan P., Imam Muda Gunawan, Andry Pujiriyanto, Sudarmaji

Indonesian Petroleum Association

... interpretation.  In determining the value of depth, slope, thickness of a reflective plane (reflector) understanding seismic wave velocity is essential...

The Role of Statics Application in the Imaging of Sub-Surface in Fold Belt Areas, #40746 (2011)

Arun Kumar Arya, Bharat Chandra Joshi, Narinder Pal Singh,

Search and Discovery.com

... residual static correction is advised. The final stacking velocity is used to flatten the events in CDP gathers to obtain NMO corrected gathers...

Premigration attenuation analysis and mapping to image domain by weighted migrations

Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Xin et al. (2014) picked both pre- and post-migration data for input to Q-tomography. For post-migration picking, they applied destretch by reverse NMO...

Integrated 3D Seismic Data Modeling and Processing Methodology for Structural Model Analysis: Case Study

T. Salinas

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... vertical functions and a horizon based analysis of residual NMO. velocity model was updated using horizon based and grid tomography on an iterative...

Using Multiazimuth Seismic Data for Anisotropy Estimation in an Unconventional Reservoir

Surabhi Mishra

Petroleum Exploration Society of Australia (PESA)

... the application of VVAZ technique. Grechka and Tsvankin (1998, 1999) defined azimuthaldependent NMO velocity by a 3D ellipse. Ellipse model...

Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs

Jinsong Chen, Sizhuang Deng, Min Yang, Andrey Shabelansky, Cory Hoelting, Huafeng Liu, Maisha Amaru

International Meeting for Applied Geoscience and Energy (IMAGE)

... parameters in a vertical transverse isotropy (VTI) medium. They used normal moveout (NMO) traveltime and detectability criteria to guide model...

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

... Technology Conference, Paper No. 5944, v. 1, p. 599607.Rowe, M., and J. Gettrust, 1993a, Faulted structure of the bottom simulating reflector on the Blake...

Avo Azimutal (AVAZ) en la Detección de Fracturas: Caso de Estudio en Tres Campos de REPSOL-YPF Cuenca Neuquina, Argentina [PAPER IN SPANISH] AVO Azimuthal (AVAZ) in Fracture Detection: A Case Study Over Three REPSOL-YPF Fields in Neuquina Basin, Argentin

D. Curia, C. Regazzoni, M. D. Roizman

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... las velocidades aplicadas reduciendo así los problemas de NMO residual, eliminar los ruidos aleatorios y ruidos organizados, incluyendo los arribos...

Benefits and Uplift of Focused Post-Migration Gather Conditioning Over Prospect Specific Areas - An Indonesian Case Study

David Jessup, Dave Goulding, Andy Kalil

Indonesian Petroleum Association

... balanced and flat, then there should be very little difference between the input and the synthetic gathers over the range angle range where the Shuey...

True-Azimuth 3D Surface-Related Multiple Elimination

Roald van Borselen, Rob Hegge, Peter Aaron, Simon Barnes, Andrew Long

Petroleum Exploration Society of Australia (PESA)

... data reconstruct ion, and relying more on to being 1D applications, e.g. tau-p sou rce and receiver locations are honoured in differential NMO...

Seismic-Based Volcano Identification and Characterization in HD Oilfield, Tarim Basin; #10747 (2015)

Yaonan Li, Guizhong Wang, Desheng Sun, Hongmei Zhang, Zhen Zou, Lin Yu, Sheng Cao

Search and Discovery.com

... of reservoir heterogeneity, VTI velocity analysis is firstly implemented. Figure 5 gives the comparison of the conventional and VTI NMO velocity analysis...

AVO Attributes for Successful Exploration and Field Development: A Case Study From Sarawak Basin, Offshore Malaysia

Norbert Van de Coevering, Rusdinadar Sigit, Reza Lasman

Indonesian Petroleum Association

... exploration success ratios. However, many types of amplitude responses such as bright spots, flat spots or dim spots were observed on seismic data that have...

Seismic Reservoir Characterisation of a Channel Sand Oil and Gas Field, Malaysia (Paper A11)

T. J. Focht, M. Sams, D. Brookes, J. Ting

Geological Society of Malaysia (GSM)

... inversion. However, a look at the NMO corrected seismic gathers showed that the events were not flat across the entire offset range and deviated upwards...