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The AAPG/Datapages Combined Publications Database

Showing 20,860 Results. Searched 200,756 documents.

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Experimental Investigations of Combined Flow Sediment Transport

Everett Smith, Max S. Daniller-Varghese, Paul M. Myrow, David Mohrig

Journal of Sedimentary Research (SEPM)

... the surface wave velocity was 0.02 m/s, and it decayed to near zero at the base of the ramp. This profile fits the expected exponential decay relationship...

2019

Detection of shallow sedimentary structure of Yigong Lake in Tibetan Plateau using distributed acoustic sensing

Jian Zhou, Jizhong Yang, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... interferometry of ambient noise and multichannel analysis of surface wave. We get a 2D shear-wave velocity profile along the cable and reveal...

2022

Finite Difference Modeling: Part I: Become Expert in Five Minutes

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... approximation for the wave equation, and the famous Courant–Friedrichs–Lewy (CFL) condition – a necessary condition for convergence while solving partial...

2018

Abstracts: S-wave Attenuation within the Weathering Layer of an Alberta Heavy Oil Field; #90173 (2015)

Kristof De Meersman

Search and Discovery.com

...Abstracts: S-wave Attenuation within the Weathering Layer of an Alberta Heavy Oil Field; #90173 (2015) Kristof De Meersman AAPG Search and Discovery...

2015

Imaging below Seafloor Canyons and other Rugose Features

Dominic Fell, Kiran Dyal, Tony Hallam, Sebastian Nixon

Australian Petroleum Production & Exploration Association (APPEA) Journal

... and associated lateral velocity variations cause imaging distortions of the wavefield that can make interpretation challenging and uncertain...

2017

Imaging of the Guando Field Colombia in Time and Depth

M.A. Hall, V. Avramovic, J.T. Basick, I. Novianti, D.T. Maucione, P.Kroshko, J.C. Garzon

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... In this instance the velocity field describes refraction through interfaces as the seismic wave propagates into the earth. The velocities in the shallow section...

2003

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

... of this migration to deduce the velocity update. We present an extended example using the Marmousi model in which we use wave-equation migration...

2015

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

... concentrations near the well site, (2) determination of interval velocity relations, and (3) estimation of P-wave attenuation coefficients for gas-hydrate...

2009

Application of Sonic Waveform Attributes in Reservoir Studies

R. Gir

Geological Society of Malaysia (GSM)

... the borehole in unconsolidated sandstones can also create a cylindrical layer with a slower wave velocity than the virgin formation. With a softer layer...

1990

A Regional Velocity Cube for Depth Conversion on the Northwest Shelf

Maighréad Ní Dheasúna, Mark Ballesteros, James Leven

Petroleum Exploration Society of Australia (PESA)

...A Regional Velocity Cube for Depth Conversion on the Northwest Shelf Maighréad Ní Dheasúna, Mark Ballesteros, James Leven seismic technology...

2012

Rifts of the Western Arctic Shelf Based on Refraction Surveys

M. L. Verba, L. A. Daragan-Sushchova, A. D. Pavlenkin

Petroleum Geology: A Digest of Russian Literature

.... Interval velocity ranges from 1.9-3 to 4.1-4.3 kmps, indicating that the downwarp is filled by clastic deposits, at the top of which are progradational...

1991

A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).

Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam

Search and Discovery.com

... changes in the velocity field and the geology ‘lends itself’ to a layer-based model representation. However, recent work in the North Sea has demonstrated...

2015

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

... with only ice in the pore space can have P-wave velocity as high as 4200 m/s whereas as sediments mostly filled with water have velocities near 1800 m...

2013

Abstract: Recent Advances in Mapping Deep Permafrost and Gas Hydrate Occurrences using Industry Seismic Data, Richards Island Area, Northwest Territories, Canada; #90171 (2013)

Gilles Bellefleur

Search and Discovery.com

... with only ice in the pore space can have P-wave velocity as high as 4200 m/s whereas as sediments mostly filled with water have velocities near 1800 m...

2013

Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases

M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso

Indonesian Petroleum Association

... attributes from 2-D multi-coverage data. These attributes are wave-related characteristics,i.e., Emergence-Angle, Normal-Incident-Point (NIP) wave radius...

2007

Joint OBN and 3D DAS-VSP data acquisition and processing in East China Sea

G. Yu, G. M. He, Z. L. Cao, H. B. Liu, J. J. Li, Y. Z. Chen, J. J. Wu, J. G. Li, X. M. Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... separation, anisotropic velocity modeling, correction of seismic migration velocity field, upgoing wave imaging, common receiver gather optimization...

2022

Abstract: Seismic Behaviour of CO2 Saturated Fontainebleau Sandstone Under In Situ Conditions; #90174 (2014)

Mizanul Huq Chowdhury and Douglas R. Schmitt

Search and Discovery.com

... of micro cracks in the sample. Velocity (m/s) P-Wave - FB Dry Summary 6000 5400 4800 4200 3600 3000 2400 1800 Up-Cycle 1 Up-Cycle 2 Down-Cycle 1 Down...

2014

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: Quantifying CO2 Saturation from Time-Lapse Well Logging in an Onshore Saline Aquifer, Nagaoka, Japan; #90061 (2006)

Ziqiu Xue, Jiro Watanabe, and Daiji Tanase

Search and Discovery.com

... sequestrated within the reservoirs. The major challenge is how to correlate wave velocity or electrical conductivity with fluid (CO2 or formation water...

2006

Abstracts: Synthetic Microseismic Files; #90173 (2015)

J. Wong, P. M. Manning, L. Han, and J. B. Bancroft

Search and Discovery.com

..., Calgary, Alberta, Canada, May 9-11, 2011 Figure 1: Ray tracing and first-arrival times through a layered isotropic velocity model. Head-wave rays...

2015

Abstract: Reflection Full Traveltime Inversion in the Image Domain; #90319 (2018)

Yue Ma, Tong W. Fei, Yan Wu, Yi Luo

Search and Discovery.com

... accurate velocity model from traveltime information. Many previously published wave equation-based methods, which attempt to automatically invert traveltime...

2018

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