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The AAPG/Datapages Combined Publications Database

Showing 20,858 Results. Searched 200,616 documents.

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Wave Climate and Littoral Sediment Transport, Northeast Gulf of Alaska

Dag Nummedal, Michael F. Stephen

Journal of Sedimentary Research (SEPM)

... by an eight point compass rose (i.e. 45° sectors). The wave power is defined as total wave energy per unit area of the sea surface times the velocity...

1978

Multi-conditional seismic velocity synthesis using an autoregressive transformer network

Randy Harsuko, Shijun Cheng, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

...Multi-conditional seismic velocity synthesis using an autoregressive transformer network Randy Harsuko, Shijun Cheng, Tariq Alkhalifah Multi...

2024

Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014)

Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff Durand

Search and Discovery.com

...Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014) Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff...

2014

Pyseis: A high-performance, user-friendly Python package for GPU-accelerated seismic modeling and subsurface imaging

Stuart Farris, Guillaume Barnier, Ettore Biondi, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... advanced algorithms such as full waveform inversion, least-squares reverse time migration, and wave equation migration velocity analysis. Temporal...

2023

Seafloor elastic parameters estimation using a regression neural network

Moacyr de Souza Bezerra, James Simmons, James Gaiser

International Meeting for Applied Geoscience and Energy (IMAGE)

... Figure 8: Velocity models comparison for P-wave results. Agreement between the neural network model and the observations from Hamilton (1979...

2022

Near-Shore Ripples: Some Hydraulic Relationships

A. S. Trenhaile

Journal of Sedimentary Research (SEPM)

... well explained of the ripple parameters investigated, although velocity was shown to be related to water depth and wave height. BAGNOLD, R. A., 1946...

1973

Fractured Bedrock Hydrogeologic Characterization Using Digital Rock Physics, #42398 (2019).

Eric Goldfarb, Logan Shmidt, Ken Ikeda, Omar Alamoudi, Daniella Rempe, Nicola Tisato,

Search and Discovery.com

... velocity for each unit https://criticalzone.org/national/blogs/post/seeing-the-subsurface-with-a-sledgehammer-instead-of-a-shovel/ P Wave velocity...

2019

ABSTRACT: Converted Shear-Wave Anisotropy Attributes for Fractured-Reservoir Management; #90013 (2003)

JAMES E. GAISER, RICHARD R. VAN DOK

Search and Discovery.com

... with the engineering data. P-wave AVO/AVA and azimuthal velocity anisotropy analyses can be important for inferring fracture properties (e.g., Hall et al., 2000...

2003

Localized wavefield inversion (LWI): An adaptation of multi-block ADMM for localized FWI

Hossein S. Aghamiry, Ali Gholami, Stephane Operto, Alison Malcolm

International Meeting for Applied Geoscience and Energy (IMAGE)

... wavefield of 1 for homogeneous velocity model using (c) wave-equation, (d) Eq. (5). (e) The extracted wavefield in 2 with Eq. (7) when wavefield (b...

2022

The Threshold of Sediment Movement Under Oscillatory Waves: A DISCUSSION

Ole S. Madsen, William D. Grant

Journal of Sedimentary Research (SEPM)

..., F. M., 1966, Open Channel Flow, Macmillan, New York, 521 p. JONSSON, I. G., 1966, Wave boundary layers and friction factors, 10th Conf. on Coastal...

1975

Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin

Alvin K. Benson

Williston Basin Symposium

..., z, t) for a three-dimensional earth, where P could be pressure, displacement, velocity, etc. Thus, the acoustic wave equation can...

1995

Abstract: Time-Lapse FullWaveform Inversion Application To Seismic Monitoring Of CO2 Sequestration; #90224 (2015)

Wubshet Alemie

Search and Discovery.com

... parameters from known reservoir conditions. The the P-wave velocity generated by the fluid substitution model at different saturation level is used to build...

2015

The SDP Dip Plotter

W. S. Hawes

Oklahoma City Geological Society

... that the curvature of the wave front does not change in the constant velocity part of the section below the Q point.) If the system is employed...

1958

Seismic Refraction Measurements of Crustal Structure in Oklahoma

E. Tryggvason, B. R. Qualls

Oklahoma City Geological Society

..., 1962], and the mean P-wave velocity in the crust, 6.6 km/sec, is very high, well above estimated values [Pakiser and Steinhart, 1964...

1970

Abstract: Least Square Migration in Image domain (LSMi) along with Better Velocity Modeling Improves Subsalt Imaging, Offshore Mediterranean, Case Study; #90319 (2018)

Ivica Mihaljevic, Mohamed Afia, Mahmoud M. Shabana, Mohamed Sheneshen, Hany M. Hussein, Mahmoud Ouda, Amr Ghanem, Refaat Zaki, Satyendra Rana, Maud Maud Cavalca, Laurence Letki

Search and Discovery.com

...Abstract: Least Square Migration in Image domain (LSMi) along with Better Velocity Modeling Improves Subsalt Imaging, Offshore Mediterranean, Case...

2018

Abstract: Seismic Refraction Tomography and Stratigraphic Variability of Upper Holocene Coastal Deposits Along the Al Qahmah Coast, Red Sea, Saudi Arabia; #91204 (2023)

Abdullah Nabhan, Wan Yang

Search and Discovery.com

.... The data was interpreted as a regressive surface at the top of the limestone with an average P-wave velocity of 3000 m/s. The limestone base...

2023

Seismic Weathered or Aerated Surface Layer

O. C. Lester, Jr.

AAPG Bulletin

... with a low velocity characteristic has been recognized in seismic work for several years, and has been generally referred to as the "weathered layer...

1932

Elastic FWI application to a land data set in the Middle East

Anna Sedova, Olivier Leblanc, Thibaut Allemand, Gilles Lambar, Stphane Pellerin, Daniela Donno

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity inversion at approximately 400 m, due to the limited portion of the diving-wave train that it can interpret (Figure 2d). Our analysis shows...

2022

Well Log Analysis and Seismic Attenuation in a Heavy Oilfield: Ross Lake, Saskatchewan; #20294 (2015)

Zimin Zhang, Robert Stewart

Search and Discovery.com

... frame is shear-wave impedance). Well log data were smoothed using a 15m window. Figure 4. Crossplot between Qp and P velocity (left) and Qp vs. shear...

2015

Time-Lapse Seismic and Geomechanics

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... that such stretching will reduce the P-wave velocity of the rock, and hence will introduce an overburden time shift. Guilbot and Smith (2002) used 4D...

2017

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