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The AAPG/Datapages Combined Publications Database

Showing 20,860 Results. Searched 200,693 documents.

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Elastic full-waveform inversion using random space shift

Yuhui Yao, Jizhong Yang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... than AFWI due to the slow S-wave velocity which requires a more accurate initial model than Pwave velocity, together with the existence of tradeoff...

2022

Shallow shear wave velocity estimation through the ground stiffness and viscosity

Zhouhong Wei, Rong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Shallow shear wave velocity estimation through the ground stiffness and viscosity Zhouhong Wei, Rong Wang Shallow shear wave velocity estimation...

2024

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

...Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014) Jianhua Pan AAPG Search and Discovery...

2014

Abstract: Duplex Wave Migration … Imaging Vertical Boundaries; #90211 (2015)

Brian Link and Naum Marmalevsky

Search and Discovery.com

... methodology will only be recorded if the velocity depth model is characterized by significant vertical velocity heterogeneity. Duplex Wave Migration...

2015

Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source VSV / VSH Ratio in Identification of Fracture Sweet Spots in Densely Fractured Reservoirs

John M. Robinson, Bob Van Nieuwenhuise

GCAGS Transactions

..., positive source S-wave velocity in the common midpoint (CMP) domain and the P–SV velocity in the common conversion point (CCP) domain utilizing Vp/Vs...

2014

Log Resistivity Measuring Devices Compared to S-waves from a Vertical-Force Source, #41377 (2014)

John M. Robinson

Search and Discovery.com

... wavefield has a faster deeper velocity (VTI media Levin, 1979, 1980). In addition, both shear velocities are significantly less than the P-wave...

2014

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

... of refracted / diving wave methods in the foothills: shallow, high-velocity contrasts inhibit the early arrival energy from propagating to target depths...

2013

Abstract: Navigating through the Red Sea Subsalt Structures: A Look-Ahead VSP Case Study from Saudi Arabia; #90319 (2018)

Ali A. Aldawood, Carlos Planchart

Search and Discovery.com

.... Then, the upgoing P-wave reflections were separated from the recorded total wavefield using model-based separation techniques. An initial two-layer velocity model...

2018

Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma

B. B. Weatherby, W. T. Born, R. L. Harding

AAPG Bulletin

... within observational errors and yield a value of 17,950 ft./sec. for the longitudinal wave velocity. The data taken over the shorter span show...

1934

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)

... such as in shallow sedimentary sections. Introduction Pore pressure prediction in industry generally uses P-wave velocity-based prediction methods...

2023

Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation

Zhishuai Zhang, Jing Du, Fuchun Gao

Unconventional Resources Technology Conference (URTEC)

... the parameterization error, however, may lead to an ill-posed problem. The velocity model parameter set we use in this study is comprised of P- and S-wave...

2017

Broadband Seismic Technology and Beyond: Part III: The Interaction between Ocean Waves and Recorded Seismic Data

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... by a sine wave, analytical equations enable us to calculate the horizontal (u) and vertical (v) particle velocity and the pressure (p) as a function...

2013

Depth Imaging Seismic Data to Help Delineate Gas Reservoirs in Southwest Wyoming

Alvin K. Benson

Wyoming Geological Association

..., velocity, etc. Thus, the acoustic wave equation can be used to determine the wave field at any depth z from surface data through a process known...

1989

Abstract: Applying of high-technology algorithms for high-quality seismic and velocity products: Nile Delta, offshore Egypt; #90254 (2016)

Mahmoud M. Abu Shabana, Abdallah Ibrahim

Search and Discovery.com

...Abstract: Applying of high-technology algorithms for high-quality seismic and velocity products: Nile Delta, offshore Egypt; #90254 (2016) Mahmoud M...

2016

Abstract: OBN Interferometry for Velocity Model Building in a Challenging Salt Context from Barents Sea; #91204 (2023)

Guillaume Henin, Sujith Swaminadhan, Loic Janot, Sylvain Masclet

Search and Discovery.com

...Abstract: OBN Interferometry for Velocity Model Building in a Challenging Salt Context from Barents Sea; #91204 (2023) Guillaume Henin, Sujith...

2023

A case study using FWI to image pre-Messinian target in the East Mediterranean Sea

Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and it consists of a mixture of salt and clastics known as 'dirty salt,' which presents another challenge for velocity model building (VMB). In order to improve...

2022

An integrated workflow centered around elastic FWI for complex subsalt imaging using wide-azimuth data in the southern Gulf of Mexico

Hongyan Li, Riaz Alai, Nolan Brand, Frederico Xavier de Melo, Hugo Enrique Muñoz Cuenca, Wenmiao Liu, Iestyn Williams, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas, Nik Nur Halim C Soh, M Shah B Sulaiman, Sandeep Kumar

International Meeting for Applied Geoscience and Energy (IMAGE)

... to improve subsalt velocity model building through converted wave velocity scanning, interleaved EFWI and tomography, and EFWI model guided salt scenario...

2024

Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones

Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju

Indonesian Petroleum Association

... the location of the reef flank, via tomographic velocity estimation, standard P-wave imaging as well as interferometric imaging. VSP DATA ACQUISITION...

2013

Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data

Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto

Indonesian Petroleum Association

.... In addition, static correction will determine the velocity model created. Travel time tomography has a role to facilitate the calculation...

2019

Velocity model building for pressure and converted wave imaging using surface-DAS data: A North Sea case study

M. ElAttar, H. Malak, A. Cooke, O. Lewis, C. Thorgersen

International Meeting for Applied Geoscience and Energy (IMAGE)

...Velocity model building for pressure and converted wave imaging using surface-DAS data: A North Sea case study M. ElAttar, H. Malak, A. Cooke, O...

2024

CMP domain near-surface velocity model building based on deep learning

Yihao Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...CMP domain near-surface velocity model building based on deep learning Yihao Wang CMP domain near-surface velocity model building based on deep...

2022

Abstract: Q-estimation from Uncorrelated Vibroseis VSP Model Data; #90172 (2014)

Arnim B. Haase

Search and Discovery.com

..., University of Calgary [email protected] Summary A known method for velocity dispersion estimation and Q-factor calculation from uncorrelated...

2014

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