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The AAPG/Datapages Combined Publications Database

Showing 37,693 Results. Searched 200,756 documents.

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DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... filtering is based on combination of 1D stationary wavelet transform, 2D complex wavelet transform (CWT) and normal moveout. It is non-stationary...

2022

Recent Advances in Borehole Seismic

W. L. Nutt

Indonesian Petroleum Association

..., bandpass filter and true amplitude recovery are applied. A normal moveout (NMO) correction is then applied using the velocity function derived from...

1984

Fault Criteria

Francis F. Campbell

GCAGS Transactions

... for normal moveout, so the stepout pattern follows the geometry of the reflection paths. Both the Navarro and Edwards reflections step down to the right...

1965

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

... source and receiver. VNMO is the normal moveout velocity. This velocity is dependent on two parameters, namely a slant of subsurface reflector and medium...

2009

Anisotropy parameters for fractured shales

Leon Thomsen, Colin Sayers

International Meeting for Applied Geoscience and Energy (IMAGE)

...) PA 1 + Z N C11 Z C PA V  V 44PA 1 + ZV C44 H   13   PA 1 + ( (4c) PA 1 + Z H C66 Here the subscripts N, V, H refer to Normal...

2022

Pressure prediction using converted shear waves from OBN data: A rock physics approach

Prajnajyoti Mazumdar, Kevin Searles, Bjorn Olofsson, James Gaiser, Terence Krishnasami

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Eaton’s method (Eaton, 1975). The iterative method involves pre-stack depth migration (PSDM), automatic picking of residual moveout and examination...

2023

Azimuthal Velocity Analysis of 3-D Pre-Stack Seismic Data for Fracture-Induced Anisotropy in the Altamont-Bluebell Field

Khaled Al Dulaijan, Gary Margrave

Unconventional Resources Technology Conference (URTEC)

...physical modeling for azimuthal variations of P-wave velocity: CREWES Research Report. CGGVeritas, 2014, Hampson-Rusell Software Manual: R...

2016

Noise Attenuation in Common Receiver Gather to Enhance S/N Ratio in Seismic Data

Dara Felisia A, Triswan Mardani Ade Surya, R.B.Fauzan Irshadibima, Firman Syaifuddin

Indonesian Petroleum Association

... Deconvolution Velocity Analysis NMO  (Normal Moveout  Corecction) NMO  (Normal Moveout  Corecction) Stacking Stacking Post‐Processing Post...

2017

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... from normal regional faults and major anticlinal ridge trends acting as pressure seals. The motivation from EOG for attempting this was because...

Unknown

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... from normal regional faults and major anticlinal ridge trends acting as pressure seals. The motivation from EOG for attempting this was because...

Unknown

Research and application of diffraction imaging based on the full-azimuth angle migration

Shengtao Zang, Xingrong Xu, Zhe Yang, Yanxiang Wang, Jiaqing Sun

International Meeting for Applied Geoscience and Energy (IMAGE)

... for the seismic response characteristics and imaging methods in order to obtain accurate imaging of the fault-karst. Normal moveout corrections can...

2024

A Risk-Reduction Recipe Using Frequency-Based Pore Pressure Predictions from Seismic

Roger A. Young, Robert D. LoPiccolo

GCAGS Transactions

... of normal moveout velocities and the subsequent conversion to interval velocities are well-treated in a number of textbooks (e.g., Yilmaz, 1987). Because...

2005

Chapter Five: Reservoir Identification

Alistair R. Brown

AAPG Special Volumes

... gas sand is included in the interval studied. For many years RMS velocities derived from normal moveout have been used to compute interval velocities...

2011

G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset

Norman S. Neidell

AAPG Special Volumes

... of energy by angle of incidence, and (3) velocity filtering over a range of hyperbolic normal moveout velocities as part of the forward tau-p transform...

1987

Outcrop and Seismic Analysis of Natural Fractures, Faults and Structure at Teapot Dome, Wyoming

Scott P. Cooper, Bruce Hart, John C. Lorenz, Laurel B. Goodwin, Mark Milliken

Wyoming Geological Association

... of these fractures strike NW to WNW and abutting relationships indicate they predate folding. A second set of fractures consists of bed-normal extension...

2003

How to Improve the Definition of Seismic Reflection Data

D. Michon, R. Garotta

Indonesian Petroleum Association

... to the normal moveout. Fig. 2. Let us consider a one second two-way time reflection. For a few offsets the apparent horizontal velocity, as given by the slope...

1979

Seismic Interpretation Problems Caused by Miocene Channels in the Central Part of the Gippsland Basin

T U Maung, S J Cadman

Petroleum Exploration Society of Australia (PESA)

... contrast of these channels severely distorts the seismic time expression of structures, and produces changes in the normal moveout velocity...

1992

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

... the resultant corrected gathers exhibited good removal of normal moveout (Figure 7A), the calculated interval velocities where unreasonably low, ranging from...

1985

A seeded approach to deblending OBN data

Carsten Udengaard, Indranil Samanta, Richard Huang, Eric Camarda, Yi Xuan

International Meeting for Applied Geoscience and Energy (IMAGE)

... data is dealiased, using Linear Move Out (LMO) or stretch free normal moveout, to flatten the direct arrival followed by a tightly windowed amplitude...

2024

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

... are mainly caused by inaccuracies in the velocity model used during migration. Aligning these reflections in seismic normal moveout (NMO) corrected...

2024

Chapter 14 (Case Histories of Three-Dimensional Seismic Surveys)—Case History 5: Seismic Data Interpretation for Reservoir Boundaries, Parameters, and Characterization

William L. Abriel, Roger M. Wright

AAPG Special Volumes

... on the 1000’ 2-D grid. A bright spot was reviewed downdip of an abandoned competitor well that had apparently been faulted out. Normal 3-D mapping...

2011

Extended Abstract: High Resolution Surface-Sourced Seismic Experiment to Image Wilcox Group Horizons in Northern Central Louisiana

Gary L. Kinsland, Robert Stewart, Li Chang, Doug Temple, Mark King

GCAGS Transactions

...) filtered shot gather showing the many clear reflectors to 1.5 sec, (3) the shot gather corrected for normal moveout with velocities determined from...

2016

From the Bottom Up

R. F. Bennett

AAPG Bulletin

... for elevation, weathering, and normal moveout time, and the use of all traces of a seismogram increases the information available to the interpreter many...

1957

3.4 Detached Sediments: 3.4.1 Decollement Tectonics (A-Subduction): Melville--Northwest Territories, Canada Line No. 7 by Texaco Canada Resources Ltd.

Texaco Canada Resources Ltd.

AAPG Special Volumes

... sec 4) Gather 5) Datum Statics - Satum Sea Level 6) Correlation Statics 7) Velocity Analysis 8) Normal Moveout 9) Mute 10) Stack 11) Filter 0...

1983

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...

Unknown

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