Abstract: Local Stretch Zeroing NMO Correction; #90174 (2014)

N. Kazemi and H. R. Siahkoohi

Search and Discovery.com

... that generate interpolated data samples responsible for NMO stretch. Pre-correction time sampling interval is preserved by reassigning and zero padding...

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

... at the zero-offset time, prior to stacking the data to obtain a seismic image. Generally, the stacking velocity, V stack, is an estimate of V nmo...

Normal Moveout and Dip Moveout, C. L. Liner, #40037

Search and Discovery.com

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

Yong Hua, Don C. Lawton

Search and Discovery.com

... times for a reliable inversion result. Based on computation time, sufficient sampling, and an optimal distribution of rays through each velocity grid...

Understanding the causes of low frequency shadow below gas hydrates

Ayman Noor M. Qadrouh, Saad Alajmi

Petroleum Exploration Society of Australia (PESA)

..., in the validity range of the reflection-time hyperbolic approximation. According to the non-stretch NMO method, the time-velocity function is adjusted...

Seismic Processing in the Papua New Guinea Fold Belt - Recent Experience

N. J. Fisher, F. R. Nicholson

Papua New Guinea (PNG) Petroleum Convention Proceedings

..., Deconvolution, Initial Statics, Velocity Analysis, Residual Statics, NMO, Mute, Stack with velocities and residual statics usually iterated a second time...

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

... Engineering Partnership, 6-12 May 2013, Calgary, AB, Canada elsewhere. The velocity field is a unique stacking velocity at each CDP and each time...

Improving AVO Fidelity by NMO Stretching and Offset Dependent Tuning Corrections, #41574 (2015).

Yong Xu, Satinder Chopra

Search and Discovery.com

... is inherent in the data before NMO correction, its effect on AVO is more obvious on NMO corrected data. Studies have been carried out for an analytical...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... Figure 1. Reflection point dispersal in a one layer dipping model. tedious and often subjective task of velocity picks for stacking purposes. Here...

Structure Interpretation Problems of a Lower Miocene Reef Associated with a Shallow Low Velocity Anomaly, North Sumatra

Peter Walker, Masrizal Maas, Michael D. Burnaman

Indonesian Petroleum Association

... the records have had standard NMO applied using their appropriate stacking velocity functions and show the far trace stretch between 2000 to 2300 msecs...

An automatic velocity picking method based on object detection

Ce Bian, Weifeng Geng, Ping Yang, Pengyuan Sun, Guiren Xue, Haikun Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... data show that the network model can accurately picks the time-velocity sequence, and the intelligent prediction results are highly similar...

NMO Application in VTI Media: Effective and Intrinsic Eta (Geophysics Paper 6)

Joel Starr, Maz Farouki

Geological Society of Malaysia (GSM)

... Sultan Ismail, Kuala Lumpur 50250 '[email protected] Summary NMO or normal move-out is the time shift needed to correct for the effect of offset...

Section 2: Improvement of Seismic Images of Complex Tectonic Structure in Deep Water with Research-Level Processing Sequences

John Miller and Roland von Huene

AAPG Special Volumes

... a time- and space-varying velocity model along the line. 4. NMO--removes the effect of the source-receiver separation by using the NMO equation...

Marine Statics

Chiem Boon Hong

Geological Society of Malaysia (GSM)

.... Normal moveout (NMO) correction can then be easily done to correct for such effect in later stage of processing. The variation in transit time through...

Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)

Peter Whiting

Geological Society of Malaysia (GSM)

... imaging consists of NMO, DMO, stack and zero-offset time migration. Initially, NMO velocities are only approximate while constant velocity (or v(z) DMO...

The Application of Image Processing Techniques for Complex Structures

V. Sudhakar, I. T. McMahon

Indonesian Petroleum Association

... a single moveout velocity for each seismic event located at a particular normal incidence time. NMO corrections are dip-dependent so when events...

Recording and Processing Procedures for Multi-channel Seismic-Reflection Data Collected in the Western Ross Sea, Antarctica

S. V. Dadisman, H. F. Ryan, D. M. Mann

Circum Pacific Council Publications

...-generated velocity picks. Dashed line shows velocities selected for stacking. Geology and Geophysics of the Western Ross Sea B Figure 4B After dip...

Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)

Rob Vestrum

Search and Discovery.com

... picking velocities for NMO and pre-stack time migration in structured areas, we used an interactive velocity analysis tool that offers QC views of both...

Statistical Mitigation of Depth Structure Uncertainty Using Multiple Realizations for the Ujung Pangkah Field

Donald Easley, Ferry Yustiana, Willy Brianno

Indonesian Petroleum Association

... estimation and in turn the GRV (gross rock volume) of the Ujung Pangkah field. These uncertainties were statics, velocity, and time horizon picks...

Abstract: AVO Compliant Spectral Balancing; #90171 (2013)

Nirupama Nagarajappa and Jon Downton

Search and Discovery.com

... correction is applied in order to help remove NMO stretch. The presence of wavelet stretch or non-stationary frequency loss in offset and time affects...

Velocity Analyses of Near Seafloor Strata Based on Multichannel Seismic Data from the Tonga Platform

Jeffrey E. Cole, Dennis M. Mann

Circum Pacific Council Publications

... were produced of reflector coherency as a function of stacking velocity and two-way travel time (Figure 6). These coherency plots were used...

Seismic Velocity Anisotropy in Chimore Area, Bolivia

Michael Fry, Eloy Martinez, James Baker, Mark Wallace

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... reflector degradation is seen as a set of time shifts associated with changing velocity with azimuth. This sinusoidal azimuthal variation in NMO velocity...

Seismic Attenuation Analysis for Reservoir Description

Search and Discovery.com

... CMP gather using peak frequency variation with offset analysis (PFVO), which is similar to AVO analysis to reduce the stacking effect on the waveform...

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

... purpose of a velocity survey is to obtain the transit time from surface to subsurface locations, thus providing an essential time to depth correlation...

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...